PSW-H Installation and User Manual

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Informational codes regarding use of systems with multiple Any-Grid units:
Code
Description
Screen view
NE
Unidentified Host or Client unit
HS
Host unit
SL
Client unit
11.0 Troubleshooting
Problem
LCD / LED / Buzzer
Explanation / Possible
cause
What to do
Unit shuts down
automatically during
start-up process.
LCD / LEDs and
buzzer will be active
for 3 seconds and
then turn off.
The battery voltage is too
low (< 45.84 V / < 22.92 V
for the 48 V / 24 V model)
1. Re-charge battery
2. Replace battery
No response after
power on.
No indication.
1. The battery voltage is far
too low (< 33.6 V / < 16.8 V
for the 48 V / 24 V model)
2. Battery polarity is
connected in reverse
1. Check if batteries and the wiring
are connected correctly, check
battery polarity.
2. Re-charge battery.
3. Replace battery.
AC source exists but
the unit works in Off-
Grid / battery mode.
AC input voltage dis-
played as 0 on LCD,
green LED flashing.
Input circuit breaker is
tripped
Check if AC circuit breaker is tripped
and AC wiring is connected
correctly.
Green LED is flashing.
Insufficient quality of AC
power (Grid or Generator)
1. Check if AC wires are too thin
and/or too long.
2. Check if generator (if applied) is
working correctly or if input voltage
range setting is correct (try
switching from UPS mode →
Appliances mode), see chapter
“Device Operation Settings” →
“Settings menu 03” for details.
Green LED is flashing.
“Solar / PV First” is set as the
priority of the AC output
source.
Change output source priority to
“AC input / utility first”, see chapter
“Device Operation Settings” →
“Settings menu 01” for details.
When the unit is
turned on, internal
relay is switched on
and off repeatedly.
LCD and LEDs are
flashing
Battery is disconnected.
Check if battery wires are well
connected.