Page 38
TO GET ASSISTANCE, CALL: 919-774-7667
ZENITH PUMPS
Trouble-shooting & Common Questions
1. Good Sensor or Bad Sensor:
It is a good practice to always perform this step before proceed to any trouble-shooting.
•
Use a voltmeter to measure DC voltage between VP and DCM on PG-02 card of ZeDrive
drive.
•
If a Hall Effect sensor is used, make sure TSW2 switch points to 12V location (up location).
The reading should be about 12 (VDC). If the reading is small or it is always 0V, it may indi-
cate a defected PG-02 card. Replace another card to verify again. If the reading is correct,
proceed the following steps.
•
Disconnect the power, and connect the sensor wires to PG-02 card (or, use a separate
12VDC power supply), and turn the power back on
•
Measure DC voltage between A (signal wire) and DCM on PG-02 card inside of ZeDrive
drive
•
Slowly turn the motor shaft (or reducer shaft) by using a wrench, the voltage should vary
between 0 (VDC) and 12 (VDC). If the shaft is turned fast, the voltage may stay at about 6
(VDC) level.
•
If the voltage always stay at 0 (VDC), or any value below 1 (VDC), please check the sensor
wiring. If the wiring is correct, it may be a defected sensor. Please contact Zenith for a re-
placed one
•
If the voltage is always above 12 (VDC), when the shaft is turning, please check the sensor
wiring. If the wiring is correct, it may be a defected sensor. Please contact Zenith for a re-
placed one
•
If the voltage varies between 0 (VDC) and 12 (VDC), or it stays at 6 (VDC), it indicates that
the sensor is good. Please proceed to the proper section for further trouble-shooting
2. No Feedback Signal:
Please follow Step 5 of “Quick Test for ZeDrive” to manually verify the feedback signal.
•
The gap between the feedback sensor and the pickup gear inside of reducer should be
0.005”, without any interference. To do this, the simplest method is:
Screw the sensor into the thread hole located on the gear reducer, until it hits the inside
pickup gear, and back up about 1/8 of a turn (45 degrees)
•
The wiring for the sensor is incorrect
If it is a 2-wire sensor, connect
White wire - J3 Pin 5
Black wire - J3 Pin 6
Bare wire - J3 Pin 7
If it is a 3-wire sensor, connect
Red wire - J3 Pin 1
White wire - J3 Pin 5
Black wire - J3 Pin 6
Bare wire - J3 Pin 7
Summary of Contents for ZeDrive
Page 10: ...Page 9 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Control Cabinet Wiring...
Page 18: ...Page 17 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Typical Applications Solutions...
Page 38: ...Page 37 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Trouble shooting Fault Information...
Page 45: ...Page 44 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS Complete Code List...
Page 59: ...Page 58 TO GET ASSISTANCE CALL 919 774 7667 ZENITH PUMPS System Drawings...