DESCRIPTION

The Curtis Model 1352 and 1353 CANbus I/O expansion 

modules provide accurate control of up to 9 proportional 

hydraulic valves, or can be used to add other digital and 

analog I/O to any CANopen based control system. 

APPLICATION

Expands I/O capabilities on any CANopen vehicle control 

system. Typically used on materials handling trucks, aerial lift 

platforms, airport ground support equipment, compact construction 

equipment and sweeper-scrubber floor care machines.

FEATURES

Models 1352 & 1353

•	Configurable CANbus connection allows communication 

with other CANbus enabled devices.

•	Multi-purpose I/O pins in a compact, low cost, rugged module.

•	Short circuit protection on all output drivers.

•	Analog inputs can also be used as virtual digital inputs with 

programmable On/Off thresholds and variable filters.

•	Built-in programmable dither amount & frequency allow 

precise hydraulic proportional valve positioning.

•	All outputs can also be used as ‘active high’ digital inputs.

•	Constant current or constant voltage output modes provide 

accurate control.

•	Built-in coil flyback diodes reduce voltage spikes when 

driving inductive loads/coils.

•	Externally viewable status LEDs.

•	Support of 12–36V or 36–80V nominal supply voltages.

•	IP 65 sealing, positively latched I/O connectors (AMPSeal: 

14 pin 1352, 23-pin 1353).

•	12–36V models are suitable for use on internal combustion 

engine applications.

Model 1352

•	Nine multi-purpose I/O pins.

•	Six high-frequency 3A PWM proportional valve driver 

outputs. 

•	Up to 6 digital inputs.

•	Three analog inputs, two of which can be enabled for 

resistance measurement.

www.curtisinstruments.com

CANBUS I/O EXPANSION MODULES

MODELS 1352 eXM / 1353 eXM

1352

1353
MODELS 1352/1353

SPECIFICATIONS

Meets or complies with relevant US and 

International Regulations:

EMC: Designed to the requirements of EN12895

Safety: Designed to the requirements of:

EN1175-1:1998+A1:2010

EN (ISO) 13849-1

IP65 Rated per IEC 60529

Model 1352 recognized per UL583 (1353 UL583 

recognition pending).

Regulatory compliance of the complete vehicle system with the 

controller installed is the responsibility of the vehicle OEM.

MODEL CHART

Model I/O Pins Voltage Digital 

Inputs*

PWM 

Outputs*

Analog 

Inputs*

Encoder 

Inputs*

Serial

Port

5V & 12V 

External Power 

Supply

1352-4001 9 12–36 6 6 3 N/A No No

1352-6001 9 36–80 6 6 3 N/A No No

1353-4101 13 12–36 9 9 4 2 Yes Yes

1353-6101 13 36–80 9 9 4 2 Yes Yes

*Max available, final count depends on configuration.

Curtis Models 1236E and 1238E 

provide advanced control of AC 

induction motors performing on-vehicle 

traction drive or hydraulic pump duties.

The Curtis Model 1222 is an AC 

induction motor controller for ‘steer by 

wire’ electric power steering systems.

The Curtis Model 1313 Handheld 

Programmer is ideal for setting 

parameters and performing 

diagnostic functions.

Contact Curtis to obtain the VCL Vehicle Control Language compiler and development tools.

SYSTEM ACCESSORIES

FEATURES cont’d

Model 1353

•	Fifteen multi-purpose I/O pins.

•	Nine high-frequency 3A PWM proportional valve driver outputs.

•	Six analog inputs which can be enabled for voltage or resistance 

measurement.

•	Analog inputs support connections of up to two quadrature encoders.

•	12V unregulated, +5V regulated 200mA (total) protected DC 

output supplies.

•	Serial port option to allow direct programming by Curtis 1313 / 

1314 programming devices.

Safety Function PL Designated Architecture MTTFd DC%

Incorrect Measurement Transmission C Category 2 >30 yrs >60

Un-commanded Output C Category 2 >30 yrs >60

FUNCTIONAL SAFETY DATA CHART
MODELS 1352/1353

CONNECTOR WIRING DIAGRAM

1353

1352

14 13 12 11 10

5 4 3 2 1

9 8 7 6

I/O5

I/O4

I/O3

I/O2

I/O1

I/O6

AI2

AI1

B−

B+ B−

AI3

CAN H

CAN L

23 22 21 20 19 18 17 16

8 7 6 5 4 3 2 1

15 14 13 12 11 10 9

I/O5

I/O4

I/O3

I/O2

I/O1

I/O6

I/O9

I/O7

I/O8

AI6

/Rx

AI 1

/ENC 1A

AI 3

/ENC 2A

AI 2

/ENC 1B

AI 5

/Tx

AI 4

/ENC 2B

B−

I/O GND B−

+5V B+

+12V

CAN H

CAN L
MODELS 1352/1353

DIMENSIONS mm

1353

1352 :

1353 : 2PLS

6.3(0.25) dia.

Status

LED

130 (5.2 )

65 (2.6 )

100

(3.9 )

87

(3.4 )

2PLS

6.3(0.25) dia.

. Status

LEDs

(3.4 )

130 (5.2 )

100

(3.9 )

87

65 (2.6 )

39

(1.5 )

1352
MODELS 1352/1353

TYPICAL WIRING DIAGRAM

1352

J1-11 J1-3

J1-2

J1-1

J1-5

J1-4

J1-12

J1-13

J1-14

J1-9

J1-10

J1-6

J1-7

J1-8

SWITCH

RTD

0~30 VOLTS IN

INPUT/OUTPUT 1

PROPORTIONAL VALVE

CONTACTOR

INPUT/OUTPUT 2

INPUT/OUTPUT 3

INPUT/OUTPUT 4

INPUT/OUTPUT 5

INPUT/OUTPUT 6

ANALOG INPUT 1

ANALOG INPUT 2

ANALOG INPUT 3

B+

B–

B–

CAN H

CAN L

POWER

FUSE

BATTERY

CAN PORT

REVERSE POLARITY

PROTECTION (OPTIONAL)

KEYSWITCH
MODELS 1352/1353

TYPICAL WIRING DIAGRAM

1353

J1-23 J1-1

J1-2

J1-9

J1-7

J1-8

J1-10 4

3

1

2

J1-11

J1-12

J1-3

J1-14

J1-13

J1-6

J1-5

J1-4

J1-22

J1-21

J1-20

J1-19

J1-18

J1-17

J1-16

J1-15

LIFT-UP VALVE

INPUT/OUTPUT 1

KEYSWITCH

POWER

FUSE

BATTERY

CAN PORT

SERIAL PORT

4 PIN MOLEX

LIFT-UP / 

LOWERING

TILT

UP / DOWN SHIFT

LEFT / RIGHT

REACH

FW / BW

REVERSE POLARITY

PROTECTION (OPTIONAL)

INPUT/OUTPUT 2

INPUT/OUTPUT 3

INPUT/OUTPUT 4

INPUT/OUTPUT 5

INPUT/OUTPUT 6

ANALOG INPUT 5/Tx

ANALOG INPUT 1 / ENCODER 1A

ANALOG INPUT 2 / ENCODER 1B

ANALOG INPUT 3 / ENCODER 2A

ANALOG INPUT 4 / ENCODER 2B

I/O GND

ANALOG INPUT 6/Rx INPUT/OUTPUT 7

INPUT/OUTPUT 8

INPUT/OUTPUT 9

LOWERING VALVE

TILT-UP VALVE

LIFT-UP VALVE

SHIFT LEFT VALVE

SHIFT RIGHT VALVE

REACH FW VALVE

REACH BW VALVE

OPTION VALVE

B+

B–

B–

+12V

+5V

CAN H

CAN L

 is a trademark of Curtis Instruments, Inc. Specifications subject to change without notice ©2014 Curtis Instruments, Inc. 50274 REV A 10/14

WARRANTY Two year limited warranty from time of delivery.