Specifications

Curtis PMC 1223/33, 1225/35, 1227/37 Manual

AUXILIARY DRIVER OUTPUT OPTIONS

Program 1

The program 1 parameter conﬁgures a low side driver output at Pin 7. This

output driver is typically programmed to drive an electromagnetic brake (as

shown in the basic wiring diagrams (Figures 3 & 4, 6 & 7, 9 & 10). Alternatively,

the program 1 driver can be programmed to drive an hour meter, sweeper/

scrubber brush motor contactor, brake light, etc. It is rated at 1 ampere and is

protected from external shorts. See Section 3 for details on conﬁguring this

output.

Program 2

The program 2 parameter conﬁgures a high side driver output at Pin 16 on the

123X-series controllers (1233, 1235, 1237). This driver can be programmed to

drive an hour meter, belly button check output, sweeper/scrubber brush motor

contactor, brake light, etc. It can also be conﬁgured to perform a BB wiring check

(see below). The program 2 driver is rated at 2 amperes and is not short circuit

protected. See Section 3 for details on conﬁguring this output.

Emergency Reverse (Belly Button) Wiring Check

The 123X controllers (1233, 1235, 1237) can be conﬁgured to perform a check

on the emergency reverse input wiring by using the program 2 driver output. This

check allows the controller to determine the continuity of the emergency reverse

wiring. To implement this check, the program 2 driver output (Pin 16) must be

connected to the belly button switch as shown in Figure 15. NOTE: If the

connection is not made at the belly button switch as shown, the emergency reverse

wiring check will not be complete.

The controller can be factory-conﬁgured to either inhibit driving or limit

the driving speed to the speciﬁed emergency reverse speed if the wiring check

circuitry detects a break in the emergency reverse input wiring; see Section 4.

2 — INSTALLATION & WIRING:

Auxiliary Drivers

Fig. 15 Wiring to check

the emergency reverse input

wiring.

B-

Pin 16

Pin 10

Program 2 Driver

Emerg. Reverse

PIN KEY

KEYSWITCH

BELLY

BUTTON

SWITCH

16 15 14 13 12 11 10 9

87654321