
32
Curtis 1230 Manual,
Rev. C
3 — PROGRAMMABLE PARAMETERS:
Brake Parameters
BRAKE MENU
ALLOWABLE
PARAMETER
RANGE
DESCRIPTION
Brake Fault Check
OFF
/
ON
The brake fault check feature, when programmed On, checks the voltage
at the brake output (J2 Pin 6) and faults the controller if this voltage does
not correspond to the brake voltage demand.
Disabling the brake fault check is useful when no electromagnetic
brake is wired to the controller because with the check disabled it is not
necessary to wire a dummy brake resistor.
Brake Delay
0.0–10.0 sec.
If the motor does not stop when the throttle request is zeroed, the control-
ler will shut down the motor. The brake is then engaged after the pro-
grammed brake delay.
Brake Hold Voltage
0–100 %
A short pulse of full battery power is initially applied to the brake driver
to release the brake; after this, the PWM voltage on the brake output is
reduced to the programmed brake hold voltage. Using a lower voltage for
holding the brake reduces brake heating and saves energy.
The brake hold voltage must be set high enough to keep the brake
released even under extreme conditions (high brake temperature, low
battery voltage, vibration, or shock). Setting the parameter too low could
result in the brake being engaged accidentally, causing an abrupt stop and
excessive motor current.
Brake Driver Type
0–3
0 = throttle-initiated brake release
The brake driver releases the brake when the interlock switch closes
and throttle is requested, and engages it when the interlock switch opens
or the throttle demand is zeroed. The motor speed is ramped down to zero
before the brake driver shuts off. Note: Type 0 is the typical setting.
1 = direction-switch-initiated brake release
The brake driver releases the brake when the interlock switch closes
and a direction switch is closed, and engages it when the interlock switch
opens or both direction switches are open. The motor speed is ramped
down to zero before the brake driver shuts off.
2 = throttle-initiated brake release, with immediate braking
Same as Type 0, except the motor is shut off (without ramping down)
and brake engaged as soon as the interlock opens.
3 = direction-switch-initiated brake release, with immediate braking
Same as Type 1, except the motor is shut off (without ramping down)
and brake engaged as soon as the interlock opens.
Anti-Rollback Time
0–1000 msec.
When the electromagnetic brake is first engaged, the motor output is kept
active for the time specified by this parameter; this provides motor torque
to hold the vehicle in position on an incline. If the time is set too short the
vehicle will roll a short distance, because the brake needs some time to
mechanically engage.
☞
Note: All five brake parameters are applicable when the E-M brake is connected
to J2 Pins 3 and 6, as shown in Standard Wiring Configurations A and B.
When the brake is connected to J1 Pin 24 (Configuration C), the Brake Hold
Voltage and Brake Fault Check parameters are not used.
Содержание MultiMode 1230
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