Magtrol DSP7000 User Manual

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MAINTENANCE
11. Troubleshooting
If you require additional assistance, please contact Magtrol Customer Service at 1-716-668-5555.
Problem Reason Solution
Display indicates I/O
ERROR.
Command does not match
the unit’s programmed set
of instructions.
Use correct command and format.
Speed command sent,
but Controller does not
respond.
Communication occurred
but the Controller is not
loading the motor.
Adjust PID values.
Mechanical power reads
much higher or lower than
expected
Torque units are incorrect. Set torque input units to match the
specications 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.
Dynamometer loads too
quickly causing motor to
stall.
Input units are improperly
set up.
Set torque input units to match
specications on dynamometer
nameplate.
Speed not reading
correctly.
Speed encoder is
improperly set up.
Set speed encoder bits to match
specications on dynamometer
nameplate.

Magtrol DSP7000 Specifications

General

Brand	Magtrol
Model	DSP7000
Category	Controller
Language	English