Delta SI 5000 Operation And Installation Manual page 55

Display
LED Status
message
green: <off>
red: <off> Error # 301
yellow: <on>
green: <off>
red: <off> Error # 302
yellow: <on>
green: <off>
Error # 506
red: <on>
Error # 508
yellow: <off>
Isolation start-
green: <on>
up warning
red: <on>
Isolation run-
yellow: <off>
ning warning
PV+ grounding
green: <on>
fault
red: <on>
PV- grounding
yellow: <off>
fault
green: <off>
red: <off> Revision error
yellow: <on>
green: <on>
Self test
red: <on>
ongoing
yellow: <on>
green: <flashes>
Solar power
red: <off>
too low
yellow: <off>
green: <flashes>
Solar voltage
red: <off>
too low
yellow: <off>
green: <flashes>
Synchronize
red: <off>
to AC
yellow: <off>
green: <on>
Varistor
red: <off>
warning
yellow: <flashes>
Please follow the instructions above before contacting your service technician!
Cause
Internal communication
error or hardware fault.
The device trips and re-
verts to mains input mode
once the temperature has
dropped.
Isolation resistance fault
on the DC side during
start-up phase (# 508) or
running phase (# 506).
Isolation resistance fault
on the DC side during
start-up phase or running
phase.
Connection PV+ (PV-)
to GND is interrupted or
wrong pole is connected
to GND.
Versions of hard- and soft-
ware are not compatible.
Initialisation of solar inver-
ter on start-up.
Internal bulk voltage too
low.
PV generator voltage
between 100 V and 170 V.
Checks mains voltage and
mains frequency for mains
input mode.
Internal varistor at the DC
input is defective.
Elimination
- If the fault persists after the device has
been reset, please inform your service
technician.
- Check the installation site (no direct
sunlight, air circulation).
- Check the isolation resistance on the DC
side of the solar modules.
- You must check the isolation resistance
on the DC side of the solar modules.
Solar inverter is still feeding!
- Check that the GND connection has been
made correctly and/or check the fuse in
the grounding path. Change the fuse if
necessary. The solar inverter remains in
feed-in operation.
- If the fault persists after the device has
been reset, please inform your service
technician.
The first time the solar inverter is started
up:
- Normal function with a solar cell voltage
of between 100 V and 170 V.
- Insufficient insolation (dawn/twilight).
- Solar cell voltage less than 170 V.
- Check the solar cell voltage via the
display in the N menu.
- Insufficient insolation.
- Check the solar cell voltage via the
display in the N menu.
- Normal function before input mode.
- Although you can, in theory, carry on
using the solar inverter, the varistors
should be replaced at the earliest oppor
tunity. This will involve returning the
device.
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