2.7.5 CONNECTION TO NON-MAGTROL ELECTRONICS
To connect the Torque Transducer to electronic devices not manufactured by Magtrol, refer to the connec-
tion diagram below (
).
A Differential Amplifier is required for elimination of potential DC voltage developing in the 0 V leg (0 V
AL
).
If there is no Differential Amplifier, a zero shift of the torque signal will occur depending on the resistance
and the length of the cable.
Fig.2-21 Wiring Diagram for Connection to Non-Magtrol Electronics
2.7.5.1 PULL-UP RESISTANCE
A pull-up resistor must be incorporated into the circuit. Pull-up resistance should be set to the following,
dependent upon the V
CC
of the application.
V
CC
Pull-up resistance
5 V DC
1 kΩ
20 - 32 V DC
4.7 kΩ
.
If the electronics used for speed measurement already has its own internal pull-up resistor,
make sure the setting is in accordance with the table above.
B.I.T.E.
1 kΩ
A
B
F
C
E
D
+15 V
-15 V
B.I.T.E.
V
CC
5-30 VDC
U
AL
0 V
AL
Tacho O/P
0 V
Sig
U
AL
0 V
AL
Tacho O/P
A - Red
B - White
C - Pink
D - Green
D - Blue
E - Brown
F - Yellow
- Grey
D - Black
Power Supply 20-32 VDC
Torque Signal ±5 (±10) VDC
N/C
Torque Ground (GND)
ER 107 CABLE
Power Supply (GND)
B.I.T.E. (high impedance)
Speed Signal
N/C
Case / Shield
Earth-Grounding (GND)
U
AL
0 V
AL
B.I.T.E.
Torque O/P
Tacho O/P
0 V
Sig
Torque Analysis Module
Differential Amplifier
U Torque
Switch closed = B.I.T.E active
Shield
R (Pull-up)
NOTE
28
TM
series
INSTALLATION / CONFIGURATION
Summary of Contents for TM 301
Page 4: ...D TM series...
