Troubleshooting
Fault messages and troubleshooting help (VP8002)
7160-9001-560
01. December 2020
9.3.1
Messages via device LEDs
Messages on the control unit during operation
Device LEDs (VP8002)
LEDs
status
Power
Green on
Power on
Internal buffer battery charged
Slow flashing
Supply from buffer battery
Flashing very quickly
The buffer battery is charging
off
no power
Orange
Low capacitor voltage
Red / flashing
Warning: capacitor voltage is too low
Status
blue
Slow flashing
Operation OK
Fast flashing
● Download
● Download error
Flashing very quickly
Service mode active
1 short flash
V-pack not connected
2 short flashes
Firmware present but not active
3 short flashes
No firmware present
Display
on
Display address
no communication
off
Communication status OK
Vin1/Vin2
Green on
Power supply on
off
no power
Orange
low power, less than 20 V
Red / flashing
Error: plus and minus swapped
Vout1/Vout2
Green on
output power
off
no power
Orange
low power, less than 20 V
Flashing red
Error: plus and minus swapped
CAN1/CAN2
Green on
CAN bus OK
off
CAN bus switched off
Red / flashing
CAN-bus warning/ connection wrong
O1/I1/O2/I2
Green on
output on
off
Output overloaded
Check connected devices
Orange
Warning message
Flashing red
Fault
LINK+ACT
off
no network activity
off / green on
LAN 10 Mbps
green on / green on
LAN 100 Mbps
off (or green on) /
green flashing
Network activity
USB1 / USB2
Green on
Active
off
not active