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Table 3-1 Test Point Signal Outputs
TEST POINT
SIGNAL
LEVEL
TP2-2
Tripulse input (positive polarity)
20-75 mVpp
TP2-3
Tripulse input (negative polarity)
20-75 mVpp
TP3
Automatic gain control (AGC)
1.1 V (approx)
standard voltage
(regulated by RV1)
TP4
AGC control voltage
6.0 V (appro x)
TP5
Tripulse output (AGC output)
4.0 Vpp (appro x)
TP6
Q
position signal
o
to ±5.6 V
TP7
N position signal
o
to ±5.6 V
TP8
Not used
I
TP9
Connected to GND during
2.0 V (approx)
offset adjustment
I
(see Section 5.2)
I
TP10
S peed set signal
I
o
to +6.0 V
!
TPll
Speed signal (reverse
!
o
to -6.0 V
!
!
polarity to TP10)
I
TP12
Noise injunction terminal
I
o
to 2.0 Vpp
I
TP13
I
Position loop phase
compensation filter input
TP14
Position loop secondary
I
filter output
TP15
Servo current
o
to 3.0 Vpp
(1.0 V corresponds to 1.0A)
Normal servo system signals match the specifications and waveforms listed in Table 3-2.
3-14
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