SDD-208-121

INSTRUCTION MANUAL
ALARM SETTER【Digital ％ scale type】
SDD- H -105
SDD- L -105
SDD-HL-105
SDD-HH-105
SDD-LL-105(With a contact delay circuit)
SDD- H -105D
SDD- L -105D
SDD-HL-105D
SDD-HH-105D
SDD-LL-105D

SDD-208-121

Introduction
Thank you for your purchase of our product.
Read this instruction manual carefully before installation, wiring, and using this product.
Keep this instruction manual handy for reference at any time.
Have a contact with us or sales agent in case that this instruction manual is lost or damaged.
<Caution>
Have a contact with us when you have any questions or are aware of missing article.
Safety precaution
In the operation manual, the harm to a user or other persons and damage of property were prevented, andthe important matter for using correctly safely is written in it.
Please read a text well after understanding the following contents (a display and a graphic symbol), andprotect the mentioned item.
Improper use may lead to death or severe injury.
Improper use may possibly lead to death or severe injury.
Improper use may lead to medium injury.
 We are not responsible for the damage caused by following condition (earthquake / fire which is notcaused by us, action by third party, other accident, damage caused by our customer, misuse, productusage under abnormal condition).
 We are not responsible for secondary damage caused by product use / product malfunction (loss of profit,
halt of business operation). We are also not responsible for damage caused by false operation in
combination with connecting equipment which is beyond our control.

 Do not disassemble, remodel and repair this product.
If judged as trouble, please contact our company or a distributing agent.
 Do not get this product wet to prevent generation of heat and ignition, product failure.
When this product gets wet, stop using it.
 Metal (wire etc.) other than wiring is not connected to the terminal (metallic portion) of this product.
 Do not work, if combustibles, and an inflammable medicine and inflammable gas are in the circumference.

 Connect specified power supply.
Connecting power supply beyond specification causes fire and product failure.
 When dust has adhered to the terminal, remove dust after turning off the power.
 Follow the below-mentioned procedure when abnormality (fuming / bad odor) happens.
(1) Stop a power supply and input, and stop using.
(2) Contact our company or a distributing agent.

 Do not use this product in a environment of high temperature / high humidity to prevent any damage.
 Do not touch the terminal during operation to prevent electric shock.
 Do not pull and bend connecting cable with force. Cable damage causes heat generation / burn and contact
failure leads to equipment damage.
 Connection or inspection of apparatus are not performed by the wet hand.

1

SDD-208-121

Other precaution
 Don't mount or store this unit in the following environment.
Locations with excessive corrosive gas (SO2 / H2S / etc.)(１).
Locations with excessive dust.
Locations with excessive vibration or shocks.
Locations with excessive influence of external magnetic field (２).
Note(１) Corrosive gas : Sulfur dioxide SO2, Hydrogen sulfide H2S, etc.
Note(２) Large current bus, saturable reactor, etc.
 Please wipe off lightly with the dry soft cloth.
When it wipes with the damp cloth or the dry cloth strongly, a surface is damaged. And, the character ofa name plate may disappear.
Please do not use the organic solvent, chemicals, cleaners, etc., such as an alcohol, for cleaning.
 Mercury parts and a nickel-cadmium battery are not used for this product.
 Please dispose of this product as industrial waste (noncombustible).
 The precautions at the case of using by outdoor board.
① These products are not a dustproof construction, waterproof construction, and splash-proof construction.
Please avoid the place with much dust. Moreover, please install in the place which requires neither
rain nor waterdrop.
② Please do not install in the place where sunlight hits directly. Discoloration and degradation of aname plate, and deformation of the box by the surface temperature rise may take place.

The warranty period and warranty scope.
Warranty period.
The warranty period of this product is for one year after supplying the appointed place.
Warranty scope
In the state of the normal use of product-specification within the range according to this instruction manual,
the trouble within the warranty period performs exchange or repair gratuitously.
However, the shipping expenses and the packing cost in the case of shipping obtain as payment on a customer.
And, if it corresponds to the next, it does not warrant.
(1) If it breaks down when converted or repaired except our company.
(2) If it breaks down by use out of specification range.
(3) If the cause of trouble is based on cause other than this product.
(4) Transportation, movement, damage by falling, and trouble.
(5) A natural disaster, disaster, etc., if it is the trouble which is irresponsible for a payment side (ourcompany or distributing agent).
This warranty is a warranty of a product simplex.
product.

It cannot warrant the damage induced by trouble of thisChange of instruction manual written contents.
This instruction manual changes written contents without a notice by product improvement etc.

2

SDD-208-121

Content

1. Application ･････････････････････････････････････････････････････････････････

4

1.1 Features ･･････････････････････････････････････････････････････････････････

4

1.2 Composition of type ･･･････････････････････････････････････････････････････

4

2. Specification and performance
2.1 Specification ･････････････････････････････････････････････････････････････

5

2.2 Performance ･･･････････････････････････････････････････････････････････････

5

2.3 Relay operation ･･･････････････････････････････････････････････････････････

6

2.4 Operation of an alarm output ･･････････････････････････････････････････････

7

3. Handling explanation
3.1 Dimensions diagram ････････････････････････････････････････････････････････

8

3.2 Cautions on mounting ･･････････････････････････････････････････････････････

8

3.3 Connection diagram ････････････････････････････････････････････････････････

9

3.4 Cautions on connections ･･･････････････････････････････････････････････････

9

3.5 Cautions on installation ･･････････････････････････････････････････････････

9

3.6 Setting ･･･････････････････････････････････････････････････････････････････ 10
4. Principle of operation
4.1 Block-diagram ･････････････････････････････････････････････････････････････ 10
4.2 Operating explanation ･････････････････････････････････････････････････････ 10
5. Inspection, and calibration and maintenance
5.1 Receiving inspection ･･････････････････････････････････････････････････････ 11
5.2 Periodic inspection ･･･････････････････････････････････････････････････････ 11
5.3 Maintenance ･･･････････････････････････････････････････････････････････････ 11
5.4 Trouble shooting ･･････････････････････････････････････････････････････････ 11
5.5 Check ･････････････････････････････････････････････････････････････････････ 11
5.6 Storage ･･･････････････････････････････････････････････････････････････････ 12
5.7 Countermeasures against troubles ･･････････････････････････････････････････ 12

3

SDD-208-121

1. Application
This product is the alarm setter of small plug-in construction. This product outputs the excess and deficiency
by the contact signal as compared with the value that had the input setting of DC voltage or DC current signal.
Power, temperature, flow rate, pressure, liquid level, etc., you use it for each variables to be measured meter
method broadly.
This product is with a contact delay function. A contact signal is not outputted to a momentary excess anddeficiency input. A contact signal is outputted to an excess and deficiency input after constant time.

1.1 Features① This is high-quality, is high reliability and is a product with a noise-proof design.
② The operation can be confirmed by an LED.

(Detection：Red)③ This product can change the reach of the dead band.
④ Setting value is clear with a digital switch.
⑤ This product is compact (plug-in type).
⑥ The contact delayed function can be added in an option.

1.2 Composition of typeSpecification number

TYPE

S D D - ( 1 ) - 1 0 5 ( 2 ) -( 3 ) ( 4 )(1) Setting system(2) Option

Mark

Contents

Mark

Contents

H

High limit setting

NothingWith no contact delay circuitL

Low limit setting

D

With a contact delay circuit

HL

High and low limit setting

HH

2 steps of high limit settingLL

2 steps of low limit setting〔Specification number〕(3) Input (Input resistance)(4) Auxiliary supply (Variation range)

A1

DC0‐10mV(About 1MΩ)C3

DC0‐1mA(About 100Ω)1

AC100V (±15％) 50/60Hz

A2

DC0‐50mV(About 1MΩ)C5

DC0‐10mA (About 100Ω)2

AC110V (±15％) 50/60Hz

A3

DC0‐60mV(About 1MΩ)C6

DC0‐16mA (About 100Ω)

3

AC200V (±15％) 50/60Hz

A4

DC0‐100mV (About 1MΩ)C7

DC4‐20mA (About 100Ω)

4AC220V (±15％) 50/60Hz

A5

DC0‐1V(About 1MΩ)

00

Other

5

DC24V

(±20％)

A6

DC0‐5V(About 1MΩ)

6

DC48V

(±20％)

A7

DC0‐10V(About 1MΩ)7

DC110V (±20％)

A8

DC1‐5V(About 1MΩ)

0

Other

4

SDD-208-121

2. Specification and performance
2.1 Specification
Item
Input

Specification
Reference to "Composition of type"
Input production range, Voltage input：DC10mV to 250V
Current input：DC1mA to 100mA
Reference to "Composition of type"
AC：3VA，DC：3W
1c contact.
Relay contact output.
AC120V 1A (cosφ＝1)，DC30V 2A (Resistance load)
H：0 to 99％，L：0 to 99％ (1％ step) Input is converted into 0 to 100%.
0.5 to 5％ variable (％ for input span)
0.5 seconds (Standard)
It's possible to make until 10 seconds.
2 seconds, 5 seconds, 10 seconds (Fixation)
With a contact delay circuit.
Case：ABS(V-0) ，Nameplate：polyester film ，Socket：PBT resin
Black (Munsell N1.5)

Auxiliary supply
BurdenContact composition
Contact capacity
Setting range
Dead band
Starting delay
Contact delay (３)Material
Color
Operating temperature and-10 to +55℃，30 to 85％ RH (Non condensing)humidity limits
Storage temperature limits -30 to +60℃
Mass
Approx. 450g
Product warranty period
1 yearNote(３) These specifications are specifications at the case of contact delay circuit (option) designation.

2.2 Performance
Item
Reproducibility ofthe operating point
Setting accuracy
Operating time
setting error (４)Influence oftemperature
Influence ofaux. supply voltage
Response time(５)

Overcurrent strength

Conditions

Tolerance limits％ for input span.

±0.5％％ for input span.

±1.0％％ for contact delay time.

±10 ％％ for input span. 23±10℃％ for contact delay time. 23±10℃
AC：±15％ of rated voltage.
DC：±20％ of rated voltage.
90％→110％ of an operation value.
110％→90％ of an operation value.

Operating point
Contact delay (４)Operating point
Contact delay (４)10 times 5 seconds, 1.2 times continuation for rated current.

±0.2％
±5.0％
±1.0％
±5.0％
Less than
0.3 seconds
There is nodamageLess than 100V：2 times 10 seconds and 1.2 time continuation for rated
voltage.
Overvoltage
There is no
Other：250V continuation
strengthdamageAC：2 times 10 seconds and 1.2 times continuation for rated voltage.
Aux.
supplyDC：1.5 times 10 seconds and 1.2 times continuation for rated voltage.
Between electric circuits and case.
More thanInsulation resistance Between input terminals and auxiliary
At DC500V
50MΩ
supply terminals and output terminals.
Between electric circuits and case
AC2000V (50/60Hz) 1 minutes
There is noWithstand voltage
Between input terminals and auxiliary
damageAC1500V (50/60Hz) 1 minutes
supply terminals and output terminals.
4.5kV 1.2/50μs
Impulse withstand
There is no
Between electric circuits and case.
Both positive and negative
voltagedamagepolarity each 3 times.
Vibration frequency 16.7Hz doubles amplitude 1mm.
There is noVibration
For each 10 minutes adds vibration to X, Y, Z side.
damageThere is no
Duration：For each 2 times adds shock of 296m/s２(30G) to X, Y, Z side.
Shock
Malfunction：98m/s2 (10G)
damage４Note( ) These specifications are specifications at the case of contact delay circuit (option) designation.
Note(５) This is performance when there is not an option.
Input

5

SDD-208-121

 About transition of a contact.
In DC load switching, transition of a contact may start and a contact may
not return by uneven connection. A contact evaporates locally with arc heat,
what did contact evaporation adheres and deposits this on minus pole from+ pole, and a single-sided convex and opposite side serves as a concave.

Contact
Contact〈Measure〉Please be sure to use each relay within a rated load.

2.3 Relay operation
 Contact delay function.
Relay operation in over-input detection.
Operating set
value

Dead band set value
Input

Relay
operation

ON
OFF
Contact delay
setting time

Contact delay
setting time

Contact delay
setting time

Relay operation in shortage input detection.

Dead band set value

Operating set
value
Input

Relay
operation

ON
OFF
Contact delay
setting time

Contact delay
setting time

Contact delay
setting time About a contact delay function. (2-seconds delay operation instant return)
When an input continues for 2 seconds and exceeds an operation value, a contact operates for the firsttime. And, it returns at the same time it falls from an operation value.
Operation of the contact by the momentary overload etc. can be prevented.

6SDD-208-121

2.4 Operation of an alarm output (：The state of an input)

 HH type
Power / Input

H1

Power OFFPower ONH1 ≦ Input ＜ H2
Power ONH2 ≦ Input

H1

H1

H2

H2

0

Power ON
Input ＜ H1

ALARM

Illustration

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

H2

0
H1

H2

H1

H2

0

0

 LL type
Power / Input

ALARM

Illustration

Power OFF

L2

L1

L2

L1

0

Power ON
Input ≦ L2

0

Power ON
L2 ＜ Input ≦ L1

0

Power ON
L1 ＜ Input

0

L2
L2

L2

L1

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

L1
L1

 HL type
Power / Input
Power OFF

L

H

L

H

0

Power ON
Input ≦ L

0

Power ON
L ＜ Input ＜ H

0Power ONH ≦ Input

L
L

Power ON
Input ＜ H
Power ONH ≦ Input

Power ON
Input ≦ L
Power ON
L ＜ Input

H

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

F.S

10

9

11

2

1

3

H

Illustration

ALARM

H
0

F.S

2

1

3

F.S

2

1

3

F.S

2

1

3

H
0
H
0

 L type
Power / Input
Power OFFL

H0

 H type
Power / Input
Power OFF

ALARM

Illustration

Illustration

ALARM

L
0

F.S

2

1

3

F.S

2

1

3

F.S

2

1

3

L
0
L
0

7

SDD-208-121

3. Handling explanation
3.1 Dimensions diagram (Unit mm)(Socket)Dead bandvariable VR＊
UR-1

2-φ4.5

Set switch (2)Set switch (1)Set switch (1)
H1
L2
L
―
―

HH type
LL type
HL typeH typeL typeSet switch (2)
H2
L1
H
H
L

＊ UR-1, Precision resistance unit. (Option)
Please use it combining the alarm setter of a voltage input.
Please use it for the open measure at the time of exchanging
an alarm setter. UR-1 is connected to a socket and a current
signal is transformed into a voltage signal. (UR-1,
Resistance is designated.)

3.2 Cautions on mounting.
Please select mounting space in the following environmental conditions on the occasion of mounting.
Please mounting should select indoors with low mechanical vibration, little dust, and little corrosive gas.
As for the mounting posture, there is not a limit especially. Mounting instruction can select 35mm width DIN
rail mounting and screw mounting. Please get mounting with M4 screw. (But a screw is not attached. And givea binding fast torque of a screw as 1.08 to 1.47N･m)
Should establish of side-by-side mutual mount space 5mm over. Top and bottom space considers wiring and spaceradiation of heat, and please establishes space more than 100mm. (Please reference to following.)
Panel mounting.
Over 55

40

2-M4screw

40

Over 55

Over 535

Over 5

Over 55

Over 180

Over 180

Over 55

40

Rail mounting.

40

40

40

Please use rail of IEC, DIN technical standard 35mm width rail
(reinforced type).

 Please prepare the installation space more than the above in consideration of radiation by the naturalconvection of air.
 If the duct for wiring is used, please detach 20mm or more from the upper surface and the undersurface
of a mainframe.
8

SDD-208-121

3.3 Connection diagram
DC auxiliary supply.

AC auxiliary supply.

AUX.
SUPPLYINPUT

AUX.
SUPPLY

INPUT

8

6

8

6

7

5

7

5

4

4

SOCKET

SOCKET93

93

10 11 1

2

10 11 1

2

HH type
LL type
HL typeH typeL type

H1
L2
L
-

H2
L1
H
H
L

HH type
LL type
HL typeH typeL type

H1
L2
L
-

H2
L1
H
H
L

3.4 Cautions on connections(1) An external connection terminal is M3.5 screw terminal. Please use a solderless contact for connection witha terminal. The tightening torque of a terminal screw is 0.7 to 0.9N･m with M3.5 screw.
(2) In case inductive loads (an electromagnetic relay) are connected to an output contact, we recommend you to
use it near load like the example of the following figure, installing diode, a serge killer, etc.
《 The example of a spark quench circuit 》(ａ) Only for DC(ｂ) AC/DC application

Varistor

Serge killer

Diode
Outputcontact(ｃ) AC/DC application

Ｒ
Inductiveload

Outputcontact

R
C

Ｒ
Inductive
load～
External aux. supply(3) Connection with power supply or input applied is dangerous.

Outputcontact

Ｒ
Inductive
load～
External aux. supply

Please be sure to work after intercepting a source.

(4) If a terminal is touched at the case of cleaning or check, an electric shock will be received.
(5) A burning accident may be caused by the wiring difference in a power supply or an input. Please be carefulof wiring enough. And, check in the space which has combustibles, an inflammable medicine, inflammable gas,etc. in environment is also dangerous.

3.5 Cautions on installation
 Wiring state
Please separate wiring of input and output and consider to a noise. And, please detach the power line usedas the source of a noise and steep voltage and current wire as much as possible. Especially, please use
shielding wire for the bottom of the remarkable environment of a noise.
 Environmental conditions
Please give the ambient temperature and humidity under operation as a next range.
Temperature：-10 to +55℃，Humidity：30 to 85％ RH（Non condensing）

9

SDD-208-121

3.6 Setting(1) Setting of operation value.
Please set to a necessary operation value by the front setting switch (digital switch).
The rated current or rated voltage is made into 100％.
Setting to 0 to 99％ (1％ step).
<NOTE> If a setting switch is operated in the state of a power supply apply, even if it does not exceed
an operation value, a contact may operate. (They are not the abnormalities of a product.)(2) Variable of dead band.
It can carry out dead band variable to 0.5 to 5％ in dead band variable VR.
Please set to dead band according to the use environment.

4. Principle of operation
4.1 Block-diagram
5 ＋
INPUT

Amplifier

6 －Setting
sectionSetting withdigital switch.
AUX.
SUPPLYTimer
circuitComparator

7(＋)
8(－)

Power
supplySwitchingcircuit

Only with acontact delay
circuit(option)

a
Relay

c
b
a

Relay
b

c

10
9 (1)
11
＊
2
1 (2)
3

Reference
supply4
To eachpart<NOTE> For specification without option, the timer circuit is not contained.

4.2 Operating explanation＊ Contact composition
TYPE
(1)
(2)
HH
H1
H2
LL
L2
L1
HL
L
H
H
H
L
L

 With no option.
This product receives DC current or DC voltage, makes constant value
amplify this, and is considered as the input of a comparator.
And, a reference supply is divided in the setting section's digital switch.
Voltage comparison is performed for it as input of the comparator of another side.
The output operates a relay through a switching circuit.

 With an option.《 Contact delay circuit 》
This product receives DC current or DC voltage, makes constant value amplify this, and is considered as
the input of a comparator. And, a reference supply is divided in the setting section's digital switch.
Voltage comparison is performed for it as input of the comparator of another side.
It has opted for the start of a contact delay timer with the output.
A timer output operates a relay through a switching circuit after constant time efflux in a timer circuit.

10

SDD-208-121

5. Inspection, and calibration and maintenance
5.1 Receiving inspection
In case you inspect at the time of receiving, please carry out after consulting the following.
(1) Construction
Please carry out inspection of an outline dimension, mounting dimension, and an outside after referring
to a dimension diagram.
(2) Performance
Please carry out a worm warm-up for 15 minutes after a power supply input applies.
Then, please conduct performance inspection.

5.2 Periodic inspection
Please carry out the following way if needed.
Alarm output operation and setting accuracy：ON/OFF operation is normal, The accuracy of the operating
point and a returning point (dead band) is tested.
Please set setting of an operation value to a necessary value in a front digital switch.

5.3 Maintenance(1) The wiring change during the operation is dangerous.
(2) When you check it during the operation, please do not touch an input terminal and the power supply terminal.
(3) When checking input and a power supply, please check the electrical schematic.
(4) Please perform care by wiping with dry cloth.
indication way may disappear.

If a name-plate is wiped with solvents (alcohol etc.), an

5.4 Trouble shooting
Abnormal phenomenon

An output does notappear.

Operation LED does
not turn on.

Cause presumed

Method of settlement

The power supply input is not applied.

Please auxiliary supply-input-check and apply.

The input is not connected.

Please confirm connection of an input.

The abnormalities of an input.

Please confirm an input value.

The output is not connected.

Please confirm connection of an output.

Auxiliary supply voltage is low.

Please confirm auxiliary supply voltage.

An alarm setter's failure.
Auxiliary supply voltage is not
regulation within the limits.
The input is not over set value.

Repair of an alarm setter.
Please check auxiliary supply voltage and giveas regulation within the limits.
Please check an input value.

An alarm setter's failure

Repair of an alarm setter

5.5 Check
Although it is not necessary to check especially every day, please pay attention periodically to the next
thing.
(1) Please confirm whether the main body and socket combination do not have abnormality (or a lock is complete).
(2) Please confirm whether wiring and a screw do not loosen.
(3) Please remove, if dust has adhered to the case.

11

SDD-208-121

5.6 Storage(1) Please avoid storage in the next space.
place

Low temperature, high temperature, high humidity, and sunny(2) The aluminum electrolytic capacitor is used for a product.
Please do the energization of the power supply within one year after shipment.

5.7 Countermeasures against troubles
As our principle, we recall product in question and repair it. If judged as product failure, have a contact
with us or sales agent for repairing work (Also have a contact with us or sales agent for specification change).
Product failure which we are not responsible for (when responsibility in manufacturing process is not recognized,
when product is disassembled/remodeled, in case of false operation by customer, etc.) is beyond our warranty.

12

SDD-208-121

Tokyo Office : 11-13, Hitotsuya 1-chome, Adachi-ku, Tokyo, 121-8639, JAPAN.
TEL：+81-3-3885-2411 , Fax：+81-3-3858-3966
Kyoto Office : 1-19, Ichinobe-Nishikawahara, Jyoyou-shi, Kyoto, 610-0114, JAPAN.
TEL：+81-774-55-1391 , Fax：+81-774-54-1353
Revision C,

DATE：December 19, 201413