Minarik RG300 Series, User Manual

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38
Troubleshooting
m
Warning
Dangerous voltages exist on the drive when it is powered. When
possible, disconnect the drive while troubleshooting. High
voltages can cause serious or fatal injury.
Check the following steps before proceeding:
1. The AC line voltage must be balanced, and match the voltage
on the drive nameplate.
2. The deadband (DB) must be set approximately at the
3 o’clock position for 60 Hz AC line frequency or at
9 o’clock for 50 Hz AC line frequency.
3. The motor must be rated for the drive’s rated armature (all
motors) and field outputs (shunt wound motors only).
4. Do not make any connections to F1 and F2 if using a
permanent magnet motor.
5. Terminal block connections should be consistent with the
connections shown in this manual.
6. Check that line fuse FU501 (and FU502 for 230 VAC line
voltage) is properly sized and not blown.
7. Check that field fuse FU503 is 1.5 A and not blown.