Danfoss VLT CDS 302 Troubleshooting Manual - Page 10
Browse online or download pdf Troubleshooting Manual for DC Drives Danfoss VLT CDS 302. Danfoss VLT CDS 302 18 pages. Compressor drives
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Check List
Stop (figure 9)
Figure 9: Check pressure
switch
Run OK: 25Hz
Quick tip:
10
FRCC.PC.036.A2.02
Trouble shooting
Message displayed when the Terminal 27 is low
(no signal).
The RUN OK status display indicates that a run
command has been given to the drive but the
reference (speed command) is zero or missing.
Improperly connected wiring or interrupted
wiring is a common service issue for a motor
Ensure that terminal 27 is logic 1 (pressure
switch).
Check the control wiring to ensure that a
proper reference signal is present at the drive
input terminals and that the unit is properly
programmed to accept the signal provided.
not operating or the drive not responding to a
remote input.