Installing the 506/507/508
4-13
506/507/508 - HA389427
Problem
Possible Cause
Remedy
Motor will not run at
correct maximum
speed.
Wrong speed range
selection on preset
switches.
Refer to Installation and Set-up
chapter.
Stall light comes on
after 15 seconds in
current control mode.
Incorrect wiring of run
contact.
Run contact should be wired
between the two terminals
marked ‘run’ and ‘+10V’.
Stall light comes on
immediately after the
‘run’ contact is closed.
Faulty or incorrect
load across the ‘A+’
and ‘A-’ terminals.
Check motor armature
thoroughly. The Controller
should not be used on motors
with a low inductance.
