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DIP Switch SW1 — Lead/Lag Compensation
U31A
2
3
TL084A
R81
1K
LEAD
VEL
AUX
COMMAND
BALANCE
Overspeed Shut Down
The overspeed shut down circuit converts the TAC gradient into an absolute value for
comparison to a preset value. If this value is larger than the preset value, a motor fault will
occur.
The voltage at TP21 (SIG+) to TP15 (GND) is the "compare to" voltage and the TAC
gradient is at the I/O connector PIN-7 (SIG) to PIN-14 (GND).
26
TACH
1
1
R57
2
2K
3
TP1
R61
51K
R62
51K
R63
51K
R65
36K
R64
5.1K
C30
.047M
C31
.1M
C32
.22M
C33
.47M
C34
.47M
C35
.22M
C36
.047M
R59
200K
R60
R58
200K
200K
33P
C135
U4A
2
1
3
7
LM358
XRB1C
9
C37
.1M
1
16
15
2
14
3
13
4
12
5
11
6
7
10
R53
8
9
R54
SW1
R55
RESP
8
TP4
30K
200K
200K
CURRENT
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