Curtis 1232E Manual page 53

PARAMETER
Set Speed Threshold
Set_Speed_Threshold
0x306F 0x00
Release Delay
EM_Brake_Release_Delay
0x3073 0x00
Set Speed Settling Time
Set_Speed_Settling_Time
0x3024 0x00
Torque Preload Delay
EM_Brake_Torque_Preload_
Delay
0x3090 0x00
Torque Preload Enable
EM_Brake_Torque_Preload_Enable
EM_Brake_Torque_Preload_
Enable_Bit0 [Bit 0]
0x389D 0x00
Torque Preload Cancel Delay
EM_Brake_Torque_Preload_
Cancel_Delay
0x3091 0x00
EM Brake Fault Motor Revs
EM_Brake_Fault_Motor_Revs
0x3894 0x00
This parameter is applicable only when Speed Mode or Speed Mode Express
*
is selected and either Position Hold Enable = On or EM Brake Type = 2.
Curtis 1232E/34E/36E/38E & 1232SE/34SE/36SE Manual,
2 4 N O V E M B E R 2 0 1 5
3 — PROGRAMMABLE PARAMETERS:
EM BRAKE CONTROL MENU, cont'd
ALLOWABLE
RANGE
5 – 100 rpm Determines the speed below which the EM brake will be commanded
to set. Setting this speed too high may cause a jerky stop when the EM
5 – 100
brake sets and stops the motor.
40 – 2000 ms Estimated time for the EM brake to physically release after the pull-in
voltage is applied. This is used to ensure the position hold torque buildup
5 – 250
is complete before the brake releases. When set too low, the vehicle may
experience rollback on EM brake release.
0 – 5000 ms Determines how long the position hold function is allowed to operate
before the EM brake is set. This time should be set long enough for the
0 – 156
position hold to settle.
Note
*
0 – 800 ms Estimated worst-case time to build up the torque required to hold the
vehicle stationary on a hill prior to EM brake release. This is used in
0 – 100
conjunction with Release Delay to determine when to release the brake
and allow the speed request to slew away from zero.
Note
*
On / Off When enabled, this function eliminates rollback when the throttle is
re-engaged on a ramp by forcing the vehicle to first enter position-hold
On / Off
before setting the EM brake, and then "remembering" the amount of torque
that was necessary to hold it on the ramp. When throttle is re-engaged,
this value is loaded in the motor before the EM brake is released. The
torque value is cleared automatically when KSI power is cycled.
Off = When a valid throttle input is received, the speed controller will
start with no torque preload as soon as the Release Delay expires. This will
allow some rollback when the EM brake releases.
On = When a valid throttle input is received, the speed controller will
start with a pre-set torque as measured by position-hold when the vehicle
came to a stop.
Note
*
0 – 120 s The timer starts after the EM brake is set. If the timer expires before the
throttle is re-engaged, the torque preload memory will be cleared. Setting
0 – 15000
this parameter to zero disables the timer, i.e., the preload is never
cancelled. The purpose of this delay is to prevent the vehicle from lunging
forward if it is unloaded on a hill such that the torque measured by
position-hold is no longer valid.
Note: This parameter is applicable only when Torque Preload Enable =
On (see conditions above).
1.0 – 20.0 Defines the allowable number of motor revolutions after the EM brake
is set before an EM Brake Failed to Set fault is issued (fault code 92).
10 – 200
DESCRIPTION
30
os
EM Brake Control Parameters
49