Danfoss VLT Ea4 Operating Manual page 48

VLT Ea4 Parallel Drive Modules
Operating Guide
On
Warn.
Alarm
Illustration 27: Status Indicator Lights
Table 19: Fault Types
Type of fault
Warning
Alarm
Trip lock
Status
0.0Hz
0.0Hz
Earth Fault [A14]
Auto Remote Trip
Illustration 28: Alarm Example
6.9.3 WARNING 1, 10 Volts Low
Cause
The control card voltage is less than 10 V from terminal 50. Remove some of the load from terminal 50, as the 10 V supply is overloa-
ded. Maximum 15 mA or minimum 590 Ω.
A short circuit in a connected potentiometer or incorrect wiring of the potentiometer can cause this condition.
Troubleshooting
Remove the wiring from terminal 50.
• If the warning clears, the problem is with the wiring.
• If the warning does not clear, replace the control card.
6.9.4 WARNING/ALARM 2, Live Zero Error
Cause
This warning or alarm only appears if programmed in parameter 6-01 Live Zero Timeout Function. The signal on 1 of the analog inputs
is less than 50% of the minimum value programmed for that input. Broken wiring or a faulty device sending the signal can cause
this condition.
Troubleshooting
• Check connections on all analog mains terminals.
48 | Danfoss A/S © 2023.01
OK
Warning indicator light
On
Off
On
1(1)
0.000kW
0
Alarm indicator light
Off
On (flashing)
On (flashing)
0.00A
Operating the Drive
AQ434333248451en-000101 / 130R1286