ElmoMC SimplIQ Command Reference - Manual (Page 25)

BP[N] - Brake Parameter
Purpose:
Defines the timing of the brake system in the motor when at least one of the digital
outputs has been defined by the OL[N] command as a brake. For safety reasons, a brake-
active output releases the brake so that the brake is activated when the drive is not powered on.
The brake output is always defined as active low.
When the brake is released at motor start (MO=1), the drive allows the brake time to
disengage before motion begins. During this time, the drive keeps the motor in its
starting position. When the motor is turned off (MO=0), the drive first commands the
brake to engage. Then, for a time, it keeps the motor in place while the brake actually
engages.
ƒ
BP[1] - Defines the delay for engaging the brake after the motor is disabled (msec)
ƒ BP[2] - Defines the delay for disabling the motor after the brake is engaged (msec)
Notes:
ƒ If the motor is disabled by an emergency in real time, the brake is activated at the
instant the motor is disabled. The motor freewheels until the brake is fully
engaged.
ƒ Response time to interpreter commands (from the user program or
communication) is extended during motor disable (MO=0) and enable (MO=1) in
BP[1] and BP[2] milliseconds respectively.
ƒ Automatic phasing (commutation search with no digital Hall sensor or other
absolute position sensor) is not recommended for a system that requires brake
activation.
Attributes: Type: Parameter, Integer
Source: Program, RS-232, CANopen
Restrictions: MO=0
Default values: BP[1]=0
BP[2]=0
Non-volatile
Range: BP[1]:
[0…500]
BP[2]: [0…500]
Index range: [1, 2]
Unit modes: All
Activation: Immediate
See also:
OL[N] , OP
Reference chapter in the SimplIQ Software Manual:
Chapter 14, “Limits, Protections, Faults and Diagnosis”
SimplIQ Command Reference Manual Alphabetical Listing
MAN-SIMCR (Ver. 4.5)
3-12