Ir Compensation; Speed Scaler; Throttle Parameters; Throttle Input Signal Type - Curtis MultiMode 1228 Manual

3 — PROGRAMMABLE PARAMETERS:

Throttle Parameters

22
Throttle Parameters
IR COMP COEFF
IR compensation is a method by which the controller maintains a constant ve-
hicle speed despite changes in motor loading. The IR compensation parameter
adjusts how aggressively the controller tries to maintain constant speed under
changing load conditions. The parameter is scaled 0–100%, and defines the
percentage of compensation applied.
SPD SCALER
The speed scaler parameter sets the maximum voltage that can be applied to
the motor. It can be used to eliminate variations in maximum speed that would
otherwise result when driving with a fully charged battery vs. a partially dis-
charged battery. If the speed scaler is set at 23 volts, for example, the maximum
vehicle speed will be the same whether the actual battery voltage is 28 volts or
23 volts or any value in between.
The speed scaler parameter is programmable between 20.0 V and 28.0 V.
THRTL TYPE
The controller can be programmed to accept single-ended, wigwag, or inverted
wigwag signals from a 5kΩ, 3-wire pot or from a 5V throttle.
The throttle input signal type options—Types "0" through "5" in the
Throttle Type programming menu—are listed in Table 1.

Table 1 PROGRAMMABLE THROTTLE INPUT SIGNAL TYPES

APPLICABILITY
THROTTLE 5kΩ
TYPE 3-wire Pot
0
✓
1 ✓
2
✓
3 ✓
4
5
*
Requires resistor; see Figure 6, page 11.
5V
Throttle DESCRIPTION
*
wigwag pot or voltage throttle
✓
*
✓ inverted wigwag pot or voltage throttle
single-ended pot; maximum speed = 5kΩ
inverted single-ended pot; maximum speed = 0
single-ended voltage throttle;
✓
maximum speed = 5V
inverted single-ended voltage throttle;
✓
maximum speed = 0
Curtis 1228 Manual,
Rev. F