ElmoMC SimplIQ Digital Servo Drives-Bell Command Reference - Manual (Page 31)

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.
BP[1] - Defines the delay for engaging the brake after the motor is disabled
(msec).
BP[2] - Defines the delay required to disengage the brake after the motor is
enabled (msec).
Notes:
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.
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.
Automatic phasing with oscillation (CA[17]=3) is not impossible 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
SimplIQ: Similar
See also:
OL[N] , OP
SimplIQ for Steppers Command Reference Manual Alphabetical Listing
MAN-STECR (Ver. 1.1)
23