Elmo PSS User Guide
Installation
MAN-PSSUG (Ver. 3.01)
3-4
3.3.2 Capacitor
Reforming
All PSS power supplies undergo capacitor reforming prior to shipment to the
customer. However, if the power supply has been idle (at the customer site) for a
period of nine months or more, the capacitors must be reformed before startup.
To perform capacitor reforming:
1. Connect a 25-VAC supply at the AC input terminals and a 100-W/220-V (or
50W/110-VAC) light bulb at the power output terminals.
2. Run the power supply for an hour and then increase the voltage to 50 VAC for an
additional hour.
3. For higher-voltage types, run the supply for another hour at 100 VAC.
Noncompliance with these instructions may result in capacitor failure.
3.3.3 LED
Diagnostics
The following LEDs are mounted on the PSS:
LED Indication
L1 (Vs)
Existence of internal supply.
L2 (SO)
Shunt is on.
L3 (In)
Shunt is inhibited.
