Skov 110451, Техническое руководство пользователя

Страница: 29 / 32

DOL 38-2 Frequency Converter
Technical User Guide 29
Troubleshooting frequency converter
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 mo-
tor too high. Check for motor errors.
Phase errors; one or more
phases interrupted (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 sup-
ply (U, V, W). Measure the voltage going to the
motor.
Internal communication error. Replace frequency converter.
Reduced performance
Flashes red*
Supply voltage too low. Measure the supply voltage.
Internal temperature of the fre-
quency converter too high
(>95°C) Check the assembly of frequency
converter, see section Mounting the
motor controller/frequency con-
verter.
Motor current has reached its
limit value If the negative pressure in the live-
stock house is too high, check the
air inlets.
Error in internal circuit of the
LPC. Replace frequency converter.
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 (24 V = stop
terminal 8). Check signal from the winch motor.
No light
No power from power supply. Check power supply.
Defective LPC motor controller. Replace frequency converter.
* For LED indications, see section LED indication on the motor controller/frequency converter.