PSW-H Installation and User Manual

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7. Now turn on each unit. One unit will automatically and randomly be defined as the host unit and will show
the host screen, all other units will show the client screen on their display:
Screen of Host unit
Screen of Client unit(s)
8. Switch on the AC input breaker of each unit in quick succession, if an AC source is installed. If this takes too
long, then some units may show fault 82 on their screen, but they will restart automatically and upon
detecting a valid AC input, will function normally. The displays will show the following:
Screen of Host unit
Screen of Client unit(s)
9. If there are no further faults displayed, the parallel system installation is complete. The breakers on the AC
output of each unit can be switched on and then loads may be connected.
3-Phase, One or more Units per Phase
Follow these steps once the wiring is completed:
1. Turn on the unit on phase 1 with its AC output on/off switch. If PV is available, switch it on with its breaker.
Otherwise, if an AC source is available, switch it on with its AC input breaker.
2. In the Settings Menu (see chapter “Device Operation Settings”) navigate to settings menu 28.
3. Turn the AC output on/off switch off to deactivate the AC output. The unit will remain in Stand-By mode for
under a minute and the display will stay on for this time.
4. Set the menu number 28 setting from the default value “Single” (SIG) to “Phase L1” (3P1). This will not be
possible if the unit is not turned off as described in the previous step. Press so the entry stops blinking.
Now press the button to accept the new setting and return to the main view.
5. Switch off the PV and AC input breaker if they were on. Wait for the unit to shut down automatically, the
display will then turn off completely.
6. Repeat steps 1 to 5 with each further unit connected on the same phase 1. Then repeat steps 1 to 5 for each
unit in phase 2 and, instead of choosing “Phase L1” in step 4, choose “Phase L2” (3P2). Then repeat steps 1 to
5 for each unit in phase 3 and, instead of choosing “Phase L1” in step 4, choose “Phase L3” (3P3).
7. Now turn on each unit. The units will show the following in their respective screens:
Screen of Units on Phase L1
Screen of Units on Phase L2
Screen of Units on Phase L3