Siemens SIMOVERT MASTERDRIVES Manual page 975

Limit value monitor
Criterion for "Brake open"
Src BrakeThresh1
y
P610 (242)
x
K
(K242 = Absolute current (500.7)
"Brake open" command
P608
.01 (104) (B104="operation"[200.6]
B
.02 (1)
B
"Immediately
close brake"
command
P609
.01 (105) (B105 = no "operation" [200.7]
B
.02 (0)
B
.03 (0)
B
.04 (0)
B
Criterion for
Limit val. monitor
"Close holding brake"
Src BrakeThresh2
y
P615 (91)
x
K
x
(KK091 = Act. speed value
from motor encoder)
P616 (0.5)
0.0 ... 200.0 %
"Close holding brake" command"
BrakeThresh2
P614 (0)
B
"OFF command" from sequence control
(e.g. OFF1, 2 or 3=0) [180.7]
"Fault" from status word 1, bit 3 [200.6]
Checkback 1=Brake closed
P613 (0)
<1>
B
(e.g. from digital input)
1 2
Braking control
BrakeThr1 over
B0281
1
0
x
Machine magnetized
P611 (0.0)
0.0 ... 200.0 %
Brake Thresh1
[710.5] POWER ON
BrakeThresh2Time
0.00 ... 100.00 s
P617 (0.00)
BrakeThr2 under
B0282
1
T 0
y
0
Delay
BrakeCloseTime
0.00 ... 10.00 s
3
<1> Warning: If braking control is used, B0277 and B0278 must be connected up!
Example of connecting up the braking control:
P605=2 Brake with checkback message (NO contact switches if brake closes) [470.7]
P561=278 Inverter release from B0278 [180.3]
P564=277 Setpoint release from B0277 [180.3]
P654=275 Open brake via digital output 4 [90.6]
P613=20 Checkback "Brake Closed" from dig. input 6 [90.5], [470.4]
P612=21 Checkback "Brake Opened" from dig. input 6 [90.5], [470.5]
SET
(Q=1) Q
RESET
(Q=0) Q
Brake with checkback message P605.2 [470.7]
Checkback msg
Priority
1=Brake open
1 RESET
(e.g. from dig. input)
2 SET
P612 (1)
B
BrakeOpenTime
0.00 ... 10.00 s
P606 (0.20)
T
Delay
P607 (0.10)
T 0
<2> Attention: If braking control is used, withdrawal of the inverter release B278
Brake with checkback msg
(P605=2) [470.7]
4 5
V2.4
(to digital output)
Chkbk BrakeCl
B0279
<1>
"Braking control" operating mode
0 = No brake
1 = Brake without checkback
2 = Brake with checkback
T
1 0
0
2
1
0
2
1
has to be effected prior to the gating pulse block on sheet [480],
i.e. the following 2 conditions must be satisfied:
P801 > P617 + P607 and P800 < P616.
Alarm A037 Brake cannot be closed
Chkbk BrakeOp
B0280
6 7
Function diagram
fp_mc_470_e.vsd
MASTERDRIVES MC
08.01.02
Sampling time for braking control
(factory setting: T7=128*T0
U953.48 = ___(7)
Open Brake
B0275
Close Brake
B0276
Alarm A036
Brake cannot be opened
P605 (0)
Setp release from
brake
B0277
<1>
Inverter release
from brake
1
B0278
<1> <2>
Pulse disabling and
brake [480.6]
8
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