Skov DA 60-820, Technical User Manual

Page: 56 / 64

DA 60-820
56 Technical User Guide
6 Troubleshooting instructions
Fault symptom Error Solution
Abnormal noise coming
from fan.
Faulty mounting. Check in accordance with the document. Retighten
if required.
Bearing noise. Replace the motor.
Vibrating fan.
Check whether fan blades are defective, correctly
assembled or dirty.
Replace or clean.
Fan motor is not run-
ning. See Troubleshooting LPC mo-
tor controller.
DA 60 will not close/
open. Lack of supply.
Defective winch motor.
Check / Replace fuse.
Replace/repair winch motor.
DA 60 opens unevenly. Lack of adjustment. Check wires and strings.
Adjust, see section Mounting the pull rod/suspen-
sion [
}
41] .
DA 60 is fully open, but
the winch motor is run-
ning.
The wire is broken.
Wheels/pulleys are defective.
Check wires and wheels.
Replace the wire.
Replace wheels/pulleys.
Troubleshooting LPC motor controller
Fault symptom Status
LED
Error Solution
Stopped after 5 restart
attempts caused by the
same error within 60
minutes.
Emits
red
light*
Supply voltage too high. Measure the supply voltage.
Power consumption of the motor too
high. Check for motor errors.
Phase errors; one or more phases in-
terrupted (L1, L2, L3). Measure the voltage between the
phases.
Blocked impeller. Remove the blocking.
Wrong direction of rotation. Invert the rotation direction.
Phase error on the motor supply (U,
V, W). Measure the voltage going to the
motor.
Internal communication error. Replace LPC motor controller.
Reduced performance.
Flashes
red*
Supply voltage too low. Measure the supply voltage.
Internal temperature of the LPC motor
controller too high (>95°C). Check the mounting of the LPC mo-
tor controller, see section Mounting
the motor controller.
Motor current has reached its limit
value. Too high negative pressure in the
livestock house. Check air inlets.
Error in internal circuit of the LPC. Replace the LPC motor controller.
Ripple voltage too high Measure the supply phases.
Fan motor is not run-
ning.
Emits
green
light
Signal from climate controller (10V =
stop terminal 5). Check signal from the controller.
Start/stop signal (24V = stop terminal
8). Check signal from the winch motor.
No light Supply is lacking.
Check power supply.
Defective LPC motor controller. Replace the LPC motor controller.
* For LED indications, see section LED indication on the motor controller/frequency converter [
}
48] .