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SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
5.16 Brake control
The mechanical brake control has two parts that needto be
synchronically controlled. The first part is the mechanical
brake release and the second is the speedreference release.
Conditions to open the brake:
PreBrakeOpenCommand
FreqRampOut
FreqRampOut
FreqRampOut
0
CL Control
Fault Active
Running
Running
Flux Ready
Running
Run Request
Run Request
Reverse Direction
BrakeOffFrqLimOL
BrakeOffFrqLimCL
IN
IN
P
P
BrakeOnF
BrakeOnFreqLim -
P
P
BrakeOnOffCurLim
Motor Current
P
P
P
R
NOT
IN
NOT
IN
IN
1
2
LE
IN
IN
1
2
EQ
ABS
IN
NOT
IN
NOT
IN
IN
IN
1
2
3
AND
IN
IN
IN
1
2
IN
IN
1
2
3
AND
GE
IN
IN
IN
1
2
3
OR
SET
RESET
RS
IN
IN
IN
1
2
3
OR
IN
IN
IN
1
2
3
AND
IN
IN
IN
1
2
3
AND
IN
G
IN 1
0
SEL
IN
ABS
IN
G
IN 1
0
SEL
IN
IN 2
1
LT
The final brake open command: It is possible that
in aMaster/Follower system the master drive opens
thebrake. Also an overriding system may do this without
anycontrol from the drive using AucControlWord1.B7.
Duringidentification run the brake will not open.
IN
IN
IN
1
2
OR
IN
IN
1
2
OR
IN
IN
1
2
AND
PreBrakeOpenCommand
MasterBrakeOpenCommand
AuxControlWord 1.B7
ExtBrakeCtrl,Inv
ExtBrakeCtrl
Identification Run
NOT
IN
NOT