Iv. Motor Voltages For Ctv Stepper Motor - Trane CVHE Troubleshooting Manual

IV. Motor Voltages for CTV Stepper Motor

A. With the motor connector J6 (or J8) connected to the Stepper Board, and the Stepper
powered, measure the AC and DC voltages of the connector pins, and compare to
Table 10
.
Table 9
Motor Voltages with Actuator Holding
Connector Pin
J6 - (4 to 3) 0 or (5.8 to 10)
J6 - (4 to 2) 5.8-8.2
J6 - (3 to 1) 0 or(5.8-10)
J6 - (3 to 2) 0 or(5.8-10)
J6-(3 to 1) 5.8 to 8.2
J6- (2 to1) 0 or (5.8-10)
J6 -(4 to 0 or (5.8-8)
conduit)
J6 -(3 to 0 or (5.8-8)
conduit)
J6 -(2 to 0 or (5.8-8)
conduit)
J6 -(1 to 0 or(5.8 -8)
conduit)
Table 10
Motor Voltages with Actuator Moving
Connector Pin
J6 - (4 to 3) (16.6-25.9)
J6 - (4 to 2) (20.8-27.5)
J6 - (4 to 1) 16.6-25.9)
J6 - (3 to 2) 16.6-25.9)
J6 - (3 to 1) 20.8-27.5)
J6 - (2 to 1) (16.6 - 25.9)
J6 - (4 to (11.4 - 17.3)
conduit)
J6 - (4 to (11.4 - 17.3)
conduit)
J6 - (4 to (11.4 - 17.3)
conduit)
J6 - (4 to (11.4 - 17.3)
conduit)
CVHE-SB-32A
AC Voltage
- 400 mV to +400 mV
+ 400 mV, but not 0mV
- 400 mV to +400 mV
- 400 mV to +400 mV
+400 mV, but not 0 mV
- 400 mV to +400 mV
(0.3-0.43) or (1.04- 1.135)
(0.3-0.43) or (1.04- 1.135)
(0.3-0.43) or (1.04- 1.135)
(0.3-0.43) or (1.04- 1.135)
AC Voltage DC Voltage
-720 mV to +720 mV
-720 mV to +720mV
-720mVto +720mV
-720mV to +720mV
-720mV to+720mV
-720 mV to +720mV
(9.1 -10.1)
(9.1 -10.1)
(9.1 -10.1)
(9.1 -10.1)
DC Voltage
Table 9
and
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