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MAINTENANCE
7. Troubleshooting
If you require additional assistance, please contact Magtrol Customer Service at 1-716-668-5555.
problem
reason
solution
Mechanical power reads
much higher or lower than
expected.
Torque units are incorrect. Set torque input units to match the
specifications on dynamometer
nameplate.
No GPIB communication.
Setup error and/or
hardware fault.
Check:
• GPIB address of Controller.
• GPIB cable - should be functioning
and attached to Controller and
computer interface card.
No RS-232
communication.
Setup error and/or
hardware fault.
Check:
• Baud rate of Controller.
• Pinout of serial cable.
• Cable attachment to Controller and
serial interface port of computer.
Dynamometer shaft does
not turn smoothly when
BRAKE is OFF.
Salient poles were set
up on the rotor by having
brake current applied with
no shaft rotation.
Start the motor and bring up to speed.
Press BRAKE button ON. Adjust
output current up to a value at least
25% of the maximum torque rating of
the dynamometer in use (if possible).
Reduce output current to 0.