Specifications

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

PROGRAM 4 [default access: OEM]

The brake holding voltage parameter allows selection of a voltage less than the

full battery voltage to be applied to the brake coil when the brake is energized.

This parameter is applicable only when the Program 1 driver is conﬁgured as an

electromagnetic brake driver. The voltage is pulse width modulated and the

setting represents the percentage of nominal battery voltage applied to the coil.

Setting the parameter value to 100% allows the nominal battery voltage (e.g.,

24V) to be applied to the coil whenever the battery voltage exceeds its nominal

value. Setting the parameter value to 0% turns this feature off, causing the driver

to apply the actual DC battery voltage to the brake coil when the brake is

energized. When this parameter is set to a value greater than 0%, the nominal

battery voltage is applied for 1 second (to ensure the brake coil disengages the

brake) and then the programmed value is applied.

This feature provides greater vehicle range by reducing the power provided

to the brake coil during operation. It also reduces brake heating, and thus reduces

degradation of the brake’s pull-in characteristics at high temperatures.

HIGH PEDAL DIS [default access: OEM]

The high pedal disable (HPD) feature prevents the vehicle from moving if the

controller is turned on with the throttle applied. The HPD parameter allows

HPD to be enabled or disabled with the programmer. When programmed On,

HPD is active and controller output is inhibited if a throttle input greater than

the throttle deadband exists before power is applied to the controller. If HPD is

programmed Off, this protection feature is disabled and when the keyswitch (and

power enable switch, if used) is turned on the controller output will accelerate

normally to the commanded speed. NOTE: To meet TÜV requirements, the HPD

feature must be programmed On.

SRO [default access: OEM] (123X models only)

The static return to off (SRO) feature prevents the vehicle from being started

when “in gear.” If a direction is selected before the keyswitch and power enable

switch (is one is used) are turned on, the SRO feature will inhibit the controller’s

output.

SRO can be set relative to either direction (Type “1” in the SRO program-

ming menu) or to forward only (Type “2”). With SRO set to Type 2, operation

is not inhibited if the reverse direction is selected prior to the keyswitch (and

power enable switch, if applicable) being turned on. SRO can also be disabled

(Type “0” is no SRO).

3 — PROGRAMMABLE PARAMETERS

Fault Parameters