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Trouble Shooting
RUNNING FIRST TIME FAULTS Drive won’t start.
Remote start not wired properly, drive in local stop after performing ama, overloads
tripped (tandem models only).
Cause/Remedy:
check to see if overloads tripped (tandem models only) reset if necessary
and set them to the correct current rating for the motors.
Check to see if remote start is wired correctly by placing a wire link between terminal 3
and 4 of the remote start terminals.
After doing an ama you will need to reset the drive it may show local stop on the display
you will need to press “RESET” and then “START” on the control panel on the Danfoss
Drive.
RUNNING FIRST TIME FAULTS Drive won’t speed up in auto
Drive pots are set incorrectly, Break in transducer cabling or transducer wired incorrectly
into Varivac
Cause/Remedy:
check to see if Varivac is working by temporally shorting terminals 1
and 2 by placing long nose pliers into the terminals drive should speed up indicating that
there is a fault with the pot adjustment or transducer.
In the main display use the up or down button to check the transducer current on terminal
60, if the current is 0 then there is a fault with the transducer cabling or the wiring of the
transducer wiring it’s self.
If the current is above 4ma then the pots for vacuum adjustment simply need adjusting to
the correct vacuum level in the plant.
RUNNING FIRST TIME FAULTS Drive won’t slow down in auto
Short in transducer cabling, forced into setup four, air regulator set to close to varivac,
plant not gaining vacuum
Cause/Remedy:
check that the plant is up to vacuum and check the vacuum level, check
that the drive is in the correct setup 1, 2 or 3.
If drive is in auto but showing setup 4 then the setup is forced and you need to go into
parameter 4 and select multi setup.
In the main display use the up or down button to check the transducer current on
terminal 60, if the current is 20ma then there is a fault with the transducer cabling or the
wiring of the transducer wiring it’s self.
RUNNING FIRST TIME FAULTS Drive won’t switch setups or runs at 50 Hz in
auto or is controlled in test.
Drive is forced into a setup.
