•
•
•
•
•
•
•
•
•
6.9.100 ALARM 425, FPC Update Failure
Cause
This alarm is generated after the control card failed to update the fan power card PUD.
Troubleshooting
Check the fan power card wiring.
Replace fan power card.
Contact supplier.
6.9.101 ALARM 426, FPC Config
Cause
The number of found fan power cards does not match the number of configured fan power cards. See
parameter group 15-6* Option
Ident
for the number of configured fan power cards.
Troubleshooting
Check fan power card wiring.
Replace fan power card.
6.9.102 ALARM 427, FPC Supply
Cause
Supply voltage fault (5 V, 24 V, or 48 V) on fan power card is detected.
Troubleshooting
Check fan power card wiring.
Replace fan power card.
6.9.103 ALARM 432, Inrush Mode Error
Cause
An Active Inrush card reported the wrong mode. The report value indicates which inrush card reported the alarm.
Troubleshooting
Check inrush card wiring.
Replace inrush card.
6.10 Troubleshooting
Table 21: Troubleshooting
Symptom
Possible cause
Test
Solution
Display dark/No
function
Missing input power.
Check for loose connections.
Check the input power source.
Missing or open fuses.
See
Open power fuses
in this table
for possible causes.
Follow the recommendations provi-
ded.
No power to the LCP.
Check the LCP cable for proper
connection or damage.
Replace the faulty LCP or connection
cable.
Short circuit on control volt-
age (terminal 12 or 50) or at
control terminals.
Check the 24 V control voltage sup-
ply for terminal 12/13 to 20–39, or
10 V supply for terminals 50–55.
Wire the terminals properly.
Incompatible LCP (LCP from
VLT
®
2800 or
5000/6000/8000/ FCD or
FCM).
–
Use only LCP 101 (P/N 130B1124) or
LCP 102 (P/N. 130B1107).
Wrong contrast setting.
–
To adjust the contrast, press [Status] +
[
▲
]/[
▼
].
AQ434333248451en-000101 / 130R1286
64 | Danfoss A/S © 2023.01
Operating the Drive
VLT Ea4 Parallel Drive Modules
Operating Guide
Summary of Contents for VLT Ea4
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