16
Curtis 1212S Manual,
Rev. B
3 — PROGRAMMABLE PARAMETERS:
Current and Brake Parameters
BRAKE MENU
ALLOWABLE
PARAMETER
RANGE
DESCRIPTION
Delay
0.0 – 1.0 s
Sets the length of delay between when zero speed is commanded and the
electromagnetic brake is engaged.
Fault Check
On, Off
Enables/disables the fault detection on the EM brake.
Hold Voltage
10 – 24 V
A high initial voltage is applied to the brake coil when the brake is first
released. After approximately 1 second, this peak voltage drops to the
programmed Hold Voltage. The parameter should be set high enough to
hold the brake released under all the shock and vibration conditions the
vehicle will be subjected to.
Interlock Decel
0.2−4.0 s
Sets the rate (in seconds) that is used to slow down the vehicle when
the interlock is released. Larger values represent slower response.
Interlock Brake Timeout
0.0−8.0 s
Controls the maximum allowable duration of an interlock braking event.
The timer starts as soon as the interlock signal is removed. If the time
expires before the vehicle has slowed down to zero, the EM brake will
engage automatically.
CURRENT MENU
ALLOWABLE
PARAMETER
RANGE
DESCRIPTION
Main Current Limit
15 – 90 A
Sets the maximum current the controller will supply to the motor during
normal driving. By limiting the current supplied, this parameter can be
used to protect the motor from potentially damaging currents or to reduce
the maximum torque applied to the drive system.
Braking Current Limit
15 – 90 A
Sets the maximum current the controller will supply to the motor during
braking. By limiting the current supplied, this parameter can be used to
protect the motor from potentially damaging currents or to reduce the
maximum braking torque applied to the drive system.
Boost Current
15 – 100 A
Boost current gives a brief boost of current that greatly improves
performance with transient loads, such as starting on a hill, crossing a
threshold, climbing obstacles, etc. When the controller recognizes that the
motor needs more current to respond to a drive request, it provides
a current boost of a set amount for a set time.
The Boost Current parameter defines the motor current limit during
the boost period.
Boost Time
0 – 5 s
This parameter sets the maximum time that the boost current is allowed.
1212S-25xx/35xx:
15–90 A
1212S-26xx:
15–
110 A
1212S-25xx/35xx:
15–90 A
1212S-26xx:
15–
110 A
1212S-25xx/35xx:
15–100 A
1212S-26xx:
15–
125 A
1212S-25xx/35xx:
0–5 s
1212S-26xx:
0–10 s
