ABB ACS850-04 series, Firmware Manual

Page: 66 / 296

66 Program features
Settings
Parameter group 44 Maintenance (page 205 ).
Mechanical brake control
A mechanical brake can be used for holding the motor and driven machinery at zero
speed when the drive is stopped, or not powered.
Parameters 03.15 Brake torq mem and 03.16 Brake command show the torque value
stored when the brake close command is issued and the value of the brake command
respectively.
Settings
Parameter group 42 Mech brake ctrl (page 201 ).
State (Symbol )
- NN: State name
- W/X/Y/Z: State outputs/operations
W: 1 = Brake open command is active. 0 = Brake close command is active. (Controlled
through selected digital/relay output with signal 03.16 Brake command .)
BSM = Brake State Machine
* Depending on setting of parameter
42.12 Brake fault func
0/0/1/1
0/1/1/1
1/1/1/1
1/1/0/0
0/1/1/0
5)
8) 7)
13)
12)
11)
10)
9)
6)
1)
2)
3)
4)
From any state
BSM
STOPPED
BSM
START
OPEN
BRAKE
RELEASE
RAMP
CLOSE
BRAKE
Fault/Alarm*
BRAKE NOT CLOSED
Fault/Alarm*
BRAKE NOT OPEN
Fault/Alarm*
BRAKE NOT CLOSED
Fault/Alarm*
BRAKE START TORQUE
NN
W/X/Y/Z