• bit 2 of 6.11 (indicates whether the drive is ready to follow the given reference
or not),
• bit 6 of 6.16 (indicates whether the drive is modulating or not),
• optional FSO-xx safety functions module.
Outputs of the brake control logic
The mechanical brake is to be controlled by bit 0 of parameter 44.1. This bit should
be selected as the source of a relay output (or a digital input/output in output
mode) which is then wired to the brake actuator through a relay. See the wiring
example on page 101.
The brake control logic, in various states, will request the drive control logic to
hold the motor, increase the torque, or ramp down the speed. These requests are
visible in parameter 44.1.
Brake state diagram
BRAKE DISABLED
BRAKE OPENINGBRAKE CLOSED
BRAKE OPENING WAIT
BRAKE OPENING
DELAY
BRAKE CLOSING
BRAKE CLOSING
DELAY
BRAKE CLOSING WAIT
BRAKE OPEN
(from any state)
(from any state)
1
2
10
3
6
4
5
3
6
8
7
6
9
Brake control is disabled (parameter 44.6 = 0, and 44.1 b4 = 0).
The brake is closed (44.1 b0 = 0).
BRAKE DISABLED
BRAKE OPENING:
Program features 97
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