Safety Relay Modules
HR5S

Designing safety systems tosatisfy risk level of machinesSafety measures for low risk machines

Category 2 Safety Relay Module

Food machines

Creating a safety system for machines withdifferent levels of risk
Mounting device for electricalcomponents

Packaging machines

Semiconductor manufacturing
equipment

Collaborative robots
Pharmaceutical manufacturing
equipment

2

HR5S

Safety relay module

Non-redundant safety system
Introducing a safety system for low risk machines
Designing a category 2 system has been difficult and only a redundant system (category 3)
could be used to protect machines against relatively minor hazards.
However, with the HR5S safety relay module, designing a category 2 system is easy andenables cost reduction and saves maintenance time.

Category 3 and category 2 comparison
Category 3 example - When using IDEC safety relay module HR1S-AF

Category 3 system configuration• Dual channel circuit with cross monitoring• A single fault does not lead to the loss of the safetyfunction
or

Ｉ１

m

im

Ｌ１

O１
im

c

Ｉ２

IDEC Safety relay module
HR1S-AF

m

im

Ｌ２

O２
im

im: interconnecting means I1, I2: input device L1, L2: Logic processing
m: monitoring O1, O2: Output device
Dashed lines for monitoring represent reasonably practicable fault detection*According to ISO13849-1

Category 2 example - When using IDEC safety relay module HR5S

Category 2 system configuration• The circuit is monitored but the output device does not
require redundancy.
• If the safety function is impaired due to failure, thealarm (light or buzzer) is output by a fault detection
signal. (In the case of a PLc system)
or
Ｉ

im

Ｌ

im

O

m

IDEC Safety relay module
HR5S

Use existing
devices such as
pilot lights

TE

im

OTE

im: interconnecting means I2: input device L2: Logic processing
m: monitoring O: output device TE: Testing equipment
OTE: Output of testing equipment
Dashed lines represent reasonably practicable fault detection*According to ISO13849-1• Category is an architecture for safety control defined in ISO13849-1.
3

Performance level
Degree of contribution to risk reduction in a safety system is categorized by performance levels.
In category 2 architecture, PL=c or PL=d control system can be acheived.
Risk assessment must be performed to check the perfomance level (PLr) required for the equipment.
PLr=C exists especially in food and packaging machines, semiconductor manufacturing equipment, and other production
equipment and locations.

Relationship between category (Cat.), DC, MTTFD and PL
Category 2 satisfies up to PL=d

PL
a

1

b

2

c

3

d
e

PL is determined by the combination of
the architecture (Cat. ), Mean Time toDangerous Failure (MTTFD), andDiagnostic Coverage (DCavg) of thesystem.
The illustration shows that the PL that canbe acheived by combining Cat., MTTFD,
and DCavg . The HR5S can construct a
category 2 system so it can satisfy PL=ato d levels.

MTTFD of each channel
PL (performance level)
1 MTTFD of each channel = low
2 MTTFD of each channel = medium
3 MTTFD of each channel = highCategory B Category 1 Category 2 Category 2 Category 3 Category 3 Category 4
DCavgnone DCavgnone DCavglow DCavgmedium DCavglow DCavgmedium DCavghigh

Determining PLr

Required Performance Level
(PLr)
L

F1
S1

P2

<Risk parameter>
S Severity of the injury
S1 Minor injury (resulting in a full recovery)
S2 Serious injury (resulting in a permanent disability)eH

Degree of contribution torisk reduction

PLr of machine (*1)

F Frequency and duration of exposure to the hazard
F1 Seldom to quite often, and/or short exposure time (15min. per sec maximum and 1/20 maximum of that operating time of the machine)
F2 Frequent to continous and/or long exposure time
P Possibility of avoiding the hazard (depending on the occurence speed of danger, ability to escape, and training）
P1 Possible under specific conditions
P2 Scarcely possible*1) The performance level is mapped according to the sales achievement of IDEC safety products, results of risk assessment, and request forinternational standards. The required performance level for machines should be determined by risk assesment of individual machines.

Illustrations on this page are based on ISO13849-1.

4

Mounterd

Semiconductor
manufacturing equipement

P2
P1

PLr≤PLPress
machinec

Injection molding
machine

F2

P2
P1

Machine toolS2bIndustrial robot

F1

P2
P1

Food machine

Start

a
Packaging machine

F2

P1

HR5S

Safety relay module

Performance of Category 2 system
System with off-delay control system

System that eliminates short-circuit fault detection whenwiring from an input device
HR5S-C2S

HR1S-AF

HR5S-C2D

HR1S-ATE

Total width

Total width

41% DOWN

52% DOWN

Cost

Cost

45% DOWN

39% DOWN

Product Selection Selection process flow chart & line up
START

Performancelevel (PLr)

PLr=c

PLr=d

Stop category0

Stop category0

Safety input wiring
can eliminate
falut detection (*1)

Single system control

Simple modelPart number

HR5S-C2S (*1)

Maximum applicable PL

Features

Input

OutputFault
detection
outputc

Start
Fault detection release

Partial stop circuit
configuration

Delay time
0.25 sec.
0.5 sec.
1 sec.
2 sec.
4 sec.

Standard model

Off-delay model

HR5S-C2B

HR5S-C2D-T025
HR5S-C2D-T050
HR5S-C2D-T100
HR5S-C2D-T200
HR5S-C2D-T400dd

1
Not available
Not available
2
Not available
Not available• Input monitor available• Equipped with output that turns off when fault
is detected• Equipped with fault detection input and canconstruct partial stop circuit.
1
Available
Available
2
Not available
Not available

Available

Available

Available

Not available

Available

Available

Manual/Automatic
ManualManual/Automatic
ManualManual/Automatic
ManualMinimum functions
Safety input
Switch monitor input
Fault monitor input
Safety output
Auxiliary output
Delay safety output
ON output(Fault monitor output)
OFF output(Fault detection output)

Safety input wiring
cannot eliminate
falut detection

Stop category1• One of the safety outputs of the standard typechanged to delay output• Off-delay, 5 models (0.25s, 0.5s, 1s, 2s, 4s)
1
Available
Available
Not available
11*1) Can be used in cases were failures caused by cables can be eliminated according to ISO13849-2, IEC60204-1 by using cable covers and shield cables.
5HR5S Safety Relay Module
Category 2 safety relay modules for machines that require protection against minor hazards.

• See website for details on approvals and standards.

HR5S Safety Relay Module
Performance level
(PL)

Type
SimpleStandard

PL=c
PL=d

OFF-delay

PL=dPackage Quantity: 1
Reaction time
Output without
Output with
OFF-delay
OFF-delayContact Configuration
2NO (Without OFF-delay): Safety output

1NO (Without OFF-delay): Auxiliary output+ 1NO (With OFF-delay): Safety output

Maintenance Parts
Part No.
(Ordering No.)0.02s max.

0.25s ± 0.05s
0.50s ± 0.07s
1.00s ± 0.10s
2.00s ± 0.15s
4.00s ± 0.20s

Remarks

HR5S-PSP

Bracket for direct mounting

Dimensions

Direct mount(All dimensions in mm)

98.0

4.5

110.0

20.0

6

—

Package Quantity: 1

Type

4.0

0.02s max.

Part No.
(Ordering No.)
HR5S-C2S
HR5S-C2B
HR5S-C2D-T025
HR5S-C2D-T050
HR5S-C2D-T100
HR5S-C2D-T200
HR5S-C2D-T400

HR5S Safety Relay Module
Specifications
HR5S-C2S
HR5S-C2B
HR5S-C2D-T
EN ISO13849-1: 2015, EN ISO13849-2: 2012, EN 60947-5-1: 2017, UL 508, CSA C22.2 No.14, GB/T 14048.5
PL=c
PL=d
2 (EN ISO 13849-1)
330 years (100 years: When the limit value from EN ISO 13849-1 is applied) (MTTFD of fault output: 210 years)
Medium (90% minimum) (EN ISO 13849-1)
20 years (EN ISO 13849-1)
1 (Safety output 2 with OFF-delay) (*1)
Stop category (EN 60204-1: 2018)
00 (Auxiliary output 1 without OFF-delay)
Rated operating voltage
24V DC (Tolerance -15% to +10%), Class 2 Only (For North America)
Current consumption
100mA maximum at 24V DC (Without load)30Ω maximum (Between S11 to S * : 12, 13, 14, 34, 35, 36)
Input (*2)
30Ω max.(Between Y1 of the previous module to S15)—
1NO (Without OFF-delay): Auxiliary output
Configuration
2NO (Without OFF-delay): Safety output+ 1NO (With OFF-delay): Safety output
Initial contact resistance
200mΩ maximum each output contact (*3)
Rated load (resistive load)
250V AC 3A / contact, 30V DC 3A / contact
Maximum operational voltage
250V AC, 30V DC
Safety output /5V DC, 1mA (reference value) [Failure rate level P (reference value)]
Auxiliary output Minimum applicable load
250V AC 3A resistive load: 100,000 operations minimum (*4), 30V DC 3A resistive load: 100,000 operations minimum (*4)(*2)
250V AC 1A resistive load: 500,000 operations minimum (*5), 30V DC 1A resistive load: 500,000 operations minimum (*5)
Electrical life
[AC-15] 240V AC 2A inductive load: 100,000 operations minimum (operating frequency 1200 per hour, cosø= 0.3)
[DC-13] 24V DC 1A inductive load: 100,000 operations minimum (operating frequency 1200 per hour, L/R = 48ms)
Mechanical life
10 million operations minimum (operating frequency 10,800 per hour)
Conditional short-circuit current 1,000A External fuse: 5A FH (IEC 60127-2)
Fault monitor output
Semiconductor output, rated 24V DC 100mA maximum
Fault Output (*2)
Fault detection output
Semiconductor output, rated 24V DC 100mA max.
—Type No.
Applicable standards
Performance level (PL) (EN ISO 13849-1)
Category (Cat.)
Mean time to dangerous failure (MTTFD)
Diagnostics coverage (DCavg)
Mission time (TM)• Output with OFF-delay
D - T025 (0.25s): 0.25s ± 0.05s
D - T050 (0.5s): 0.50s ± 0.07s
D - T100 (1s): 1.00s ± 0.10s
D - T200 (2s): 2.00s ± 0.15s
D - T400 (4s): 4.00s ± 0.20s• Output without OFF-delay: 0.02s max.
D - T025 (0.25s): 0.5s maximum
D - T050 (0.5s): 0.8s maximum
D - T100 (1s): 1.3s maximum
D - T200 (2s): 2.4s maximum
D - T400 (4s): 4.5s maximum

Reaction time (*6) (*7)

0.02s maximum

Response time by Detection by EDM
failure diagnosis
function (*8)

0.25s maximum

Detection by SW monitor
Turn ON time (*7)
Operating temperature (*9)
Operating humidity
Storage temperature
Storage humidity
AltitudeOperating atmosphere
IP (protective structure specification)
Pollution degree
Over voltage category
Insulation
Rated insulation voltage
Rated impulse withstand voltage

0.6s maximum—
0.05s maximum-10 °C to +55 °C (no freezing, no condensation)
5 % RH to 85% RH (no condensation)-25 °C to +85 °C (no freezing, no condensation)
5 % RH to 85% RH (no condensation)
Operation: 0 to 2,000m
Indoor use only (atmosphere free from corrosive gases)
Enclosure: IP40, Terminals: IP20
2
IIBasic insulation (reinforced insulation: between contact output circuits and other circuits)
250V (contact outputs)
2,500V (between different terminal contact outputs) (4,000V: between contact output circuits and other circuits)
3,750V AC (between enclosure and internal circuit), 2,500V AC (between different terminal contact outputs)(between contact output circuits and other circuits)
5 Hz to 8.4 Hz: 3.5 mm amplitude, 8.4 Hz to 150 Hz: 10 m/s2 peak, 1 octave/min, 10 cycles for 3 axes
150 m/s2, pulse width: 11 msec, 3 times for 6 directions
DIN rail or panel mounting
Push-in terminals
150g

Dielectric strength (1 minute)Vibration resistance
Shock resistance
Mounting
Terminal Style
Weight (approx.)*1) “ Stop category 1” of EN 60204-1: 2018 is compliant to “SS1-t” of EN 61800-5-2: 2017.
*2) The external wiring length for inputs and outputs must be less than 30m maximum.
*3) Measured using 6V DC, 1A voltage drop method.
*4) Operating frequency 1200 per hour*5) Operating frequency 1800 per hour*6) The interval between when the safety input (S12) turns OFF and safety output contacts
and/or the auxiliary output contact turn OFF.
*7) When measured at the rated voltage (at 20°C). Excluding contact bounce time.
*8) The interval between when the safety relay module detects a fault and the fault monitor
output (Y1) turns ON, and the fault detection output (Y2) turns OFF at the same time.
*9) UL approved operating temperature is 40°C maximum when the product is installed ina control panel.

• The performance level and the category in accordance with EN ISO 13849-1
depends on the external wiring, application, control device used, and location in
the equipment.
• The user must carry out a risk assessment in accordance with ISO 12100.
• The entire system/machine must be validated in accordance with the applicablestandards.
• The safety relay module contains electromechanical relays. Therefore the shown
performance level and MTTFD value depend on the load and the operating cycles
in the application. The above mentioned performance level and MTTFD values
are suitable for nominal load of maximum 8,760 switching cycles per year or forsmall load of maximum 525,600 switching cycles per year.

7

HR5S Safety Relay Module
Parts Description and Definition of Terminals• HR5S-C2B
PWR

12
S35 S34 S14 S13 S12 A2 S11 A1

S35 S34 S14

Y2
13

4

37

Parts No.

HR5S-C2D-T***

5

5

Parts Name and Functions

1

PWR LED: Indicates power supply

2

K1 LED: Indicates safety output(s) (or auxiliary output)
without OFF-delay

3

K2 LED: Indicates safety output with OFF-delay

4

Push-in terminal

5

DIN Rail mounting hook

14
38

24

HR5S-C2B

5

Product type symbol
Terminal no.
S
B
D

1
2
3

Y1

Y1
Y2
13
23
14

23
14
24

HR5S-C2S

Terminal name

Function

A1, A2

Power supply

24V DC power supply (A1: 24V DC, A2: 0V)







S11

Input driver

24V DC output for safety input, reset inputs, switch monitor input, and EDM input







S12

Safety input

NC contacts of switches with a direct opening action mechanism or and interlock switch (such ascoded switches) connects between S11 and S12.





S13

Switch monitor input

Connect NO contacts of interlock switches (such as non-contact safety switches) between S11 andS13. When not used, do not connect S13.





S14

EDM input

Connect NC contacts of external contactors between S11 and S14.





S15

Fault monitor input

Connect fault monitor output (Y1) of the previous HR5S module.
When not used, do not connect S15.







S34

Manual reset input

Connect a switch between S11 and S34.
Only a rising edge followed by a falling edge triggers the reset event.







S35

Auto reset input

Connect a switch between S11 and S35. A rising edge triggers the reset event.







S36

Fault reset input

Connect a switch between S11 and S36. Only a rising edge followed by a falling edge triggers thefault reset event. When the fault reset event is triggered after a failure is cleared, the fault detection
output (Y2) turns ON from OFF and the fault monitor output (Y1) turns OFF from ON.







13 - 14





8

K2

Y1

S15 S36

4

K1

13

S36

4

PWR

1
2

K1

S12 A2 S11 A1

K1

S35 S34 S14 S13 S12 A2 S11 A1

PWR• HR5S-C2D-T

S15 S36• HR5S-C2S

Safety output 1
Without OFF-delay
Auxiliary output 1
Without OFF-delay

The contact configuration is NO.
The contact is a part of the force guided relay (K1) embedded in HR5S.

23 - 24

Safety output 2
Without OFF-delay

The contact configuration is NO.
The contact is a part of the force guided relay (K1) embedded in HR5S.

37 - 38

Safety output 2
With OFF-delay

The contact configuration is NO.
The contact is a part of the force guided relay (K2) embedded in HR5S.





Y1

Fault monitor output

The output is kept on high level (Typ. 24VDC) when the safety relay module detects a fault.
(Semiconductor output)





Y2

Fault detection output

The output is kept on low level (Typ. 0V) when the safety relay module detects a fault.
(Semiconductor output)

HR5S Safety Relay Module

POWER

Wiring Examples
A1
A2

+
–
DC

Single channel
S1
or

S11
S11

S12

S12

(*1)

INPUT

S13

(*1)

S13

Single channel + short circuit detection
S11

S1

S11

S1
S12

S12

S13

S13

(*2)

RESET

Auto reset

Manual reset

S11

S11

S34

S34

(*3)

S35

FEEDBACK (EDM)

S3
S36

(*7)
(*8)

Two outputs used
S11

S11

K3

S14
37 23 13or or
38 24 14
or or

S14

K3

L1

23 13

N

14

K3 K4
L1
K3
K4

24

Fault monitor output
FAULT OUTPUT

S11

S2

S35

One output used only

Y1
A2

Fault reset

–
DC

Lamp
(*6)

N
N

Fault detection output(*5)

K5 (*4)

Y2
A2

Fault monitor input

–
DC

S15

Next
HR5S

A2

Y1

–
DC

Previous
A2 HR5S*1) When the switch monitor input (S13) is not used, it is necessary to exclude a short circuit between the cable of safety input (S12) and other cables (e.g. to protect
the cables and/or to shield the cables).
*2) Illustrates contact status when actuator exists.
*3) When the auto reset input (S35) is used, risk assessment must be performed to prevent an unexpected activation. In this case, the manual reset input (S34) mustnot be used.
*4) The fault detection output (Y2) turns OFF when a fault is detected, i.e. it is possible for K5 (e.g. a contactor) to stop the hazard source (e.g. a motor).
*5) The fault monitor input (S15) can be connected to the fault monitor output (Y1) of previous module (HR5S). This means that K5 (e.g. a contactor) can be used tostop the hazardous source (e.g. a motor)*6) Leakage currents of the fault output may cause the LED lamp to illuminate dimly even when the output is off. In this case, insert a shunt resistor with the LED
lamp.
*7) S36 does not require wiring when fault reset is performed by turning on the power again.
*8) Manual reset switch S2 can be used as a fault reset switch S3. When doing so, be sure to perfom risk assessment

9HR5S Safety Relay Module
Wiring Diagram (Typical application)
HR5S-C2S
The maximum achievable PL is “c”.
(In the figure below, the manual reset input (S34) is used.)

S2

S1

(*1)
S11

A1

S3

K4

S12

F

K3
S14

S34 S35 S36

13Input / Reset input

+

K1

Logic
PWR

K1

Without
OFF-delay

DC

–

23

S1:
S2:
S3:
K1:
K3:
M:
F:

Fault detection circuit
Output

A2

Y1

14

Lamp

24

Emergency stop switch
Reset switch for start
Reset switch for a fault
Force guided relay installed in the module
Contactor
Motor
External fuse

*1) It is necessary to exclude a short circuit between
the cable of safety input (S12) and other cables(e.g. to protect the cables and/or to shield the cables).

K3

K3

M

Timing Chart
Normal

Fault

Emergency stop switch
S1
Reset switch for start
S2
Force guided relay
installed in the module
K1 (NO)Contactor
K3 (NC)

(*2)

(*3)

Contactor
K3 (NO)
Response time of failurefault detection
detectionfunction
function(detection(detectionbybyEDM)
EDM)

Fault monitor output
Y1 (lamp)
Reset switch for a fault
S3*2) Welding fault occured with contactor K3*3) Fault removed

10

HR5S Safety Relay Module
Wiring Diagram (Typical application)
HR5S-C2B
The maximum achievable PL is “d”.
(In the figure below, the manual reset input (S34) is used.)

S2
S1

S3

K4
F

K3
S11

A1

S12 S13 S14

S34 S35

S36

13

Input / Reset input
+

Logic
PWR

K1

K1

Without
OFF-delay

DC

-

23

S1 :
Emergency stop switch
S2 :Reset switch for start
S3 :Reset switch for a fault
Force guided relay installed in the module
K1 :K3, K4, K5 : Contactor
M1, M2 : Motor
External fuse
F:

Fault detection circuit

A2
A2

A2

Previous
HR5S

Input

Output

S15

Y1

Y1
Lamp

Y2

14

24

K5

K3

K4

*1) When PL is c for fault monitor output Y1 andfault detection output Y2, connect a warning lamp toY1 (on during fault detection).
When PL is d, connect a contactor K5 to shut powerof the hazardous source to Y2 (off during fault detection).

(*1)

K3

K4

K5

M1

M2

Timing Chart

Emergency stop switch
S1 (NC) (S12)

Fault(Fault of previous HR5S)

Fault

Normal(*2)(*3)

Emergency stop switch
S1 (NO) (S13)
Reset switch for start
S2
Force guided relay
installed in the module
K1 (NO)
Fault monitor output
Y1 (lamp)
Fault detection output
Y2 (K5 (NO))

Response time of fault detection function(detection by switch monitor)

Fault reset switch
S3
Fault monitor input S15(Y1 of previous HR5S)

(*4)

(*5)

*2) Short-circuit fault occured with the input wire*3) Fault removed*4) Fault occured with the previous HR5S
*5) Fault removed from the previous HR5S

11

HR5S Safety Relay Module
Wiring Diagram (Typical application)
HR5S-C2D-T
The maximum achievable PL is “d”.
(In the figure below, the auto reset input (S35) is used.)

S3

K3

S1

F
(*3)

S11

A1

(*2)

S12 S13 S14

S34 S35

S36

Input / Reset input

+

K1

Logic
PWR

A2

37

K1

Without
OFF-delay

DC

–

13

S1 :
Safety switch
S3 :Reset switch for a fault
K1, K2 : Force guided relay embedded in the module
K3, K5 : Contactor
M:
Motor
F:
External fuse

K2
K2

Fault detection circuit
Input

Output

S15

Y1

Y2

With
OFF-delay
14

38
(*4)

Lamp

K5

K3

(*1)

OperationcommandMotor
controller

K3*1) Regarding fault monitor output Y1 and fault detection output Y2
When PL is c, connect a warning lamp to Y1 (on during fault detection).
When PL is d, connect a contactor K5 to shut power of thehazardous source to Y2 (off during fault detection).
*2) When the auto reset input (S35) is used, it is necessary to do reskassessment to prevent an unexpected activation.
*3) When the switch monitor input (S13) is not used, it is necessary to
exclude a short circuit between the cable of safety input (S12) andother cables (e.g. to protect the cables and/or to shield the cables).
*4) “Stop category 1” of IEC 60204-1 is corresponding to “SS1-t” of
IEC 61800-5-2.

K5

M

Timing Chart
NormalFault

Safety switch
S1
Force guided relay
installed in the module
K1 (NO)
Force guided relay
installed in the module
K2 (NO)

Off delay time
Off delay time

(*5)

(*6)

Fault monitor output
Y1 (lamp)
Fault detection output
Y2 (K5 (NO))
Fault reset switch
S3*5) Welding fault occured with contactor K2*6) Fault removed

12

Response time of fault detection function (detection by EDM)HR5S Safety Relay Module
Accessories

All dimensions in mm

Recommended Ferrules

When ordering, specify the Ordering No.

Wire Size (Stranded Wire)
AWG
mm2

Name
Ferruleswith insulation cover

Wire Strip Length

Part No.

24

0.25

S3TL-H025-12WJ

10 to 11mm

22

0.34

S3TL-H034-12WT

10 to 11mm

20

0.50

S3TL-H05-14WA

10 to 11mm

18

0.75

S3TL-H075-14WW

10 to 11mm

Package quantity

500

Tools
When ordering, specify the Ordering No.
Name / ShapePart No.

Package Quantity

S3TL-CR04T

1

Crimping tool(for ferrules)

Crimping tool(for ferrules)

Remarks
Crimping shape: Trapezoidal

Crimping shape: Trapezoidal Indent
S3TL-CR06D

1

Flat blade screwdriver

Blade size (dimensions: mm)
S3TL-D04-20-60

10.4

2.0 600.4

2.5 75

Blade size (dimensions: mm)
S3TL-D04-25-75

1

Safety Systems• Operate, adjust, and maintain the product in accordance with thestandards applicable to the equipment.
• Input and output equipment for safety control connected to thisproduct should be compliant with ISO 13849-1 safety system
requirements.

• The wiring examples shown in this catalog are examples only.
Regading the conformity of customer's safety system performancelevel, perform risk assessment and consult with a third-party
certification organization.

Safety Precautions• Do not disassemble, repair, or modify the product. This may cause
impairment of the safe operability of the safety relay module.
• Turn off the power to the product before starting installation,
removing, wiring, maintenance, or inspection of the safety relay
module. Failure to turn power off may cause electric shocks or fire
hazard.
• Be sure to read the instructions attached to the product or website
and use under the appropriate environment. Insufficient installation
may lead to damage or failure.
• Make sure to take measures to prevent electric shock due toinsulation damage between output 1 and output 2.
• Use within the specified voltage. Do not use a power supply that
produce high ripple voltage or abnormal voltage.
• Use a power supply that meets following required specifications;– Complies with SELV or PELV circuit specified by
IEC 60364-4-41.
– Has the functionality of the control voltage and current of class 2
circuit, as defined in UL508.

• Check the safety function of the product periodically, turn OFF thesignal to the safety input (e.g. at least once a year) and make sure thesafety outputs turn OFF.
• The product is designed for installation within an enclosure. Do notinstall the product outside an enclosure. Install the product in an
enclosure rated IP54 or higher.
• Install the product in environments described in this instruction sheet.
If the safety relay module is used in places where the product issubjected to high temperature, high humidity, condensation, corrosive
gases, excessive vibrations, and excessive shocks then electric
shocks, fire hazard, or malfunction may result.
• Environment for using the product is “Pollution degree 2”. Use thesafety relay module under pollution degree 2 environment.
• When disposing the product, follow the laws and regulations of thecountry where it is disposed.
• Due to a power supply failure, the voltage of S11 (input driver) may
rise to 34V DC maximum.

13

HR5S Safety Relay Module
Instructions
See the instruction sheet for installation.

Inserting solid wire and insulated ferrule

Applicable Wire

Insert the stripped solid wire or stranded wire with insulated ferrule in astraight direction. Tools are not required for wiring.
After inserting, pull lightly to make sure wire is connected to the pushin terminal.

Use cables conforming to applicable standards.
When using stranded wire, insulated ferrule should be used.
Use below insulated ferrule.

a

b

Good

Insulated ferrule (*1)
24 AWG to 18 AWG (0.25 to 0.75mm2)aPusherb

To wire the HR5S, use the following wires:• Solid wire : 24 AWG to 16 AWG (0.2 to 1.5 mm2)
• Stranded wire / Flexible wire : 24 AWG to 18 AWG (0.25 to 0.75 mm2)
• Strip the cover of wire : 7 to 9 mm

Bad

Removing the wire

Connectable size

Be sure to turn off the power before removing the wire.

• Crimp width a : 2.1 mm max.
• Height b : 1.48 mm max.
• Conductor length c : 7 to 9 mm

• Push the pusher using a screwdriver, such as a flat screwdriver, with a force
of approx. 20N.
• With the pusher pressed, pull the wire out in the straight direction.

Recommended Tools (Optional)b

FerruleNamecPart No.
S3TL-D04-20-60
S3TL-D04-25-75

Flat screwdriveraConductor

Wire*) When using a ferrule, refer to “Recommended Ferrules” below.
When using a Crimping tool, refer to “Recommended Tools” below.

Recommended Ferrules (Optional)
Applicable Wire
AWG
mm2
0.25
24
0.34
22
0.5
20
0.75
18

Part No.
S3TL-H025-12WJ
S3TL-H034-12WT
S3TL-H05-14WA
S3TL-H075-14WW• See page 13 for details on recommended ferrules.

Recommended Tools (Optional)
Item
Crimping toolPart No.
S3TL-CR06D
S3TL-CR06D• See page 13 for details on recommended ferrules.
Note 1) Note the crimping dimensions When using tools other than therecommended crimping tool. See "Connectable size" shown above fordetails.
Note 2) Use a tool recommended by the ferrule manufacturer.

14

0.4mm

2 to 2.5mm

Be careful so that the push-in terminal is not damaged.
• Do not push the pusher by a force of more than 40N.
• Do not pull out the wire without pushing the pusher.

HR5S Safety Relay Module
Instructions
Crimping of Ferrules and Wiring• Choose an appropriate ferrule for the wire.
• Cut the wire carefully to get a flat end.
• Make sure that ferrule sleeve is completely filled by the conductor.
Depending on the cross section, the conductor should protrude
approx. 0 to 1 mm from the ferrule sleeve.
0 to 1mm• When crimping, refer to the instructions of the crimping tool.

Faults which can occur during crimping:• Cracks along the sides and die impressions• Splitting of the ferrules• Asymmetrical crimping shape• Extreme burrs formed along the sides• Ferrule not filled by conductor• Single conductors pushed back by protruding from the insulationcover• Single conductors squeezed off• Insulation cover damaged by the crimping jaw• Conductor insulation not pushed into the insulation cover• Ferrule bent longitudinally after crimping
Formation of cracks at the sides.
Sides spilt open
Formation of cracks at the
impressions of the crimping jaw

Asymmetrical crimping shape.
Burr formation on one side
Asymmetrical crimping shape.
Burr formation on one side

Single conductor squeezed off

Single conductor pushed back15

Ordering Terms and Conditions
Thank you for using IDEC Products.
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(3) When using IDEC products, be cautious when implementing the following.
i. Use of IDEC products with sufficient allowance for rating and 		
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design that prevents other danger and damage even in the event that an
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such as equipment used outdoors or applications in environments
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We ask that you implement inspections for IDEC products you purchase without
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4. Warranty(1) Warranty period
The warranty period for IDEC products shall be one (1) year after purchase ordelivery to the specified location. However, this shall not apply in cases where
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was not performed properly in accordance with the user’s manual and
Catalogs
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(1) Instructions for installation / adjustment and accompaniment at test operation(including creating application software and testing operation, etc.)(2) Maintenance inspections, adjustments, and repairs(3) Technical instructions and technical training(4) Product tests or inspections specified by you
The above content assumes transactions and usage within your region. Please
consult with an IDEC sales representative regarding transactions and usage outsideof your region. Also, IDEC provides no guarantees whatsoever regarding IDEC
products sold outside your region.

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Specifications and other descriptions in this brochure are subject to change without notice.
Information in this brochure is current as of September, 2021.
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