Drive control and features
56
Mechanical brake state diagram
CLOSE
BRAKE
From any state
0/1/1/0
1/1/1/1
1)
2)
3)
6)
7)
11)
12)
13)
5)
0/0/1/1
8)
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
X: 1 = Forced start (inverter is modulating). The function keeps the internal Start command on until the brake is closed regardless of the status of the
external Stop. Effective only when ramp stop has been selected as the stop mode (
). Run enable and faults override the forced
start. 0 = No forced start (normal operation).
Y:
1 = Drive control mode is forced to speed/scalar.
Z:
1 = Ramp generator output is forced to zero. 0 = Ramp generator output is enabled (normal operation).
NN
W/X/Y/Z
State change conditions (Symbol
)
1)
Brake control is active (
) OR modulation of the drive is requested to stop. The drive
control mode is forced to speed/scalar.
2)
External start command is on AND brake open request is on (source selected by
= 0).
3)
Starting torque required at brake release is reached (
) AND brake hold is not active (
).
Note:
With scalar control, the defined starting torque has no effect.
4)
Brake is open (acknowledgement = 1, selected by par.
) AND the brake open delay has passed (
). Start = 1.
5) 6) Start = 0 OR brake close command is active AND actual motor speed < brake close speed (
).
7)
Brake is closed (acknowledgement = 0) AND brake close delay has passed (
). Start = 0.
8)
Start = 1.
9)
Brake is open (acknowledgement = 1) AND brake close delay has passed.
10)
Defined starting torque at brake release is not reached.
11)
Brake is closed (acknowledgement = 0) AND brake open delay has passed.
12)
Brake is closed (acknowledgement = 0).
13)
Brake is open (acknowledgement = 1) AND brake close delay has passed.
0/1/1/1
Fault/Alarm*
BRAKE NOT CLOSED
9)
Fault/Alarm*
BRAKE START TORQUE
10)
4)
BSM = Brake State
Machine
* Depends on setting of
par.
BSM STOPPED
BSM
START
1/1/0/0
RELEASE
RAMP
OPEN
BRAKE
Fault/Alarm*
BRAKE NOT CLOSED
Fault/Alarm*
BRAKE NOT OPEN
Summary of Contents for ACSM1 Series
Page 1: ...ABB motion control drives Firmware manual ACSM1 motion control program ...
Page 4: ......
Page 34: ...Drive programming using PC tools 34 ...
Page 86: ...Drive control and features 86 ...
Page 265: ...Parameters and firmware blocks 265 1 100 us 100 µs 2 1 ms 1 ms 3 50 ms 50 ms ...
Page 302: ...Parameter data 302 ...
Page 422: ...Application program template 422 ...
Page 430: ...Appendix A Fieldbus control 430 ...
Page 500: ...Appendix D Application examples 500 ...
Page 508: ...Appendix E Control chain and drive logic diagrams 508 ...
Page 510: ...3AFE68848270 REV H EN 2015 06 26 Contact us www abb com drives www abb com drivespartners ...
