Curtis 1238SE - Table 2 Low Power Connections

2 — INSTALLATION AND WIRING
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE/38SE Manual, os 31 – May 2017 Return to TOC
pg. 10
Table 2 Low Power Connections
Pin Name Description
Related VCL*
Function References
1 KSI
Keyswitch input. Provides logic power for
the controller and power for the coil drivers.
Keyswitch_Voltage
2 Prop. Driver
Proportional driver. This is a coil driver with
current control capability typically used
for a proportional valve on a hydraulic
manifold.
Can also be used as a digital input.
Automate_PWM()
Put_PWM()
Automate_
Frequency_
Output()
Frequency_
Output_Duty_
Cycle()
Sw_13
PWM5
PD_Current
PD_Output
PD_Throttle
VCL_PD_Throttle
3 Driver 4
Generic driver #4; can also be used as
a digital input. Has low frequency PWM
capabilities.
Automate_PWM()
Put_PWM()
Sw_12
PWM4
PWM4_Output
4 Driver 3
Generic driver #3; can also be used as
a digital input. Has low frequency PWM
capabilities.
Typically used for pump contactor.
Automate_PWM()
Put_PWM()
Sw_11
PWM3
PWM3_Output
5 Driver 2
Generic driver #2; can also be used as
a digital input. Has low frequency PWM
capabilities and a slightly higher current
rating.
Typically used for electromagnetic brake.
Automate_PWM()
Put_PWM()
Sw_10
PWM2
PWM2_Output
6 Driver 1
Generic driver #1; can also be used as
a digital input. Has low frequency PWM
capabilities.
Typically used for main contactor.
Automate_PWM()
Put_PWM()
Set-Interlock()
Clear_Interlock()
Sw_9
PWM1
PWM1_Output
Interlock_State
Main_State
7 I/O Ground Input and output ground reference.
8
Switch 2
Analog 2
Can be used as generic switch input #2 or
as generic analog input #2.
Typically used as the motor temperature
analog input.
Sw_2
Analog2_Input
Motor_Temperature
9 Switch 3
Generic switch input #3.
Typically used as the interlock switch.
Sw_3
10 Switch 4 Generic switch input #4.
Sw_4
11 Switch 5 Generic switch input #5.
Sw_5
12 Switch 6 Generic switch input #6.
Sw_6
13 Coil Return
This is the coil return pin (at B+ potential)
for all the contactor coils.
14 Switch 16 Generic switch input #16.
Sw_16
15 Throttle Pot High Pot high connection for a 3-wire throttle pot.
16 Throttle Pot Wiper Pot wiper connection for the throttle pot.
Setup_Pot()
Setup_Pot_Faults()
Throttle_Pot
Throttle_Pot_Output
17 Pot2 Wiper Pot wiper connection for the brake pot.
Setup_Pot()
Setup_Pot_Faults()
Brake_Pot
Brake_Pot_Output
* The related VCL columns are vital when writing VCL code (see Chapter 10). VCL “functions” are used to access the various I/Os; VCL “references” are
predened names for specic pins. Refer to the OS SysInfo le for specic VCL functions, controller system variables, usage, and CAN Object IDs.