Specifications

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

2 — INSTALLATION & WIRING:

Throttle

The speed limit pot also limits the vehicle’s reverse speed. Reverse speed is

linearly proportional to the speed limit pot setting and is adjustable from the

Mode 1 minimum speed (speed limit pot in its minimum speed position) to the

programmed maximum reverse speed (speed limit pot in its maximum speed

position).

If a speed limit pot is not used, the speed limit input (Pin 4) can be jumpered

to the pot high input, as shown in Figure 14. In this conﬁguration, the vehicle

speed at full throttle is deﬁned by the programmed maximum speed. If no

jumper is used, the vehicle speed at full throttle will be limited to the pro-

grammed minimum speed, which by default will also apply to reverse.

Fig. 14 Wiring of speed

limit input to enable

maximum speed when no

speed limit pot is used.

Pin 4

Pin 1

Speed Limit Pot Wiper

Pot High Input

PIN KEY

87654321

16 15 14 13 12 11 10 9

JUMPER

If a speed limit pot will never be used in the application, the controller can

be factory-conﬁgured without the speed limit feature (see Section 4), and the

jumper will not be required. With such a controller, the vehicle speed at full

throttle is deﬁned by the programmed maximum speed, and it is possible to

program the reverse speed to a lower value if so desired.