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MODEL TPS - INSTRUCTIONS AND TROUBLESHOOTING INFORMATION
13 OF 20
CPN 40615
8.4 LOAD SHARING
When the load sharing terminal (LS) on the (TS) terminal strip is connected, multiple units are forced to
share the load current /- 5%. Individual unit outputs must be greater than 10% of the rated
current output.
#16 gauge wire can be used for loadsharing.
NOTE: If only one unit picks up the load, momentarily put the unit with no load into the equalize mode,
and then back to the float mode. The units should share load equally.
8.5 ALARM CONNECTIONS
Form “C” contacts are provided which indicate an a.c. power failure. The contacts are rated at 60Va at
125 Vdc or a.c.
For other alarm information see “INFORMER ACCESSORY ALARM PACKAGE”
section.
9.0 OPERATION
9.1 START UP
When all connections have been made, place the units’ a.c. breaker in the “on” position. If there is an
optional d.c. breaker place it in the “ON” position. Note: The reset switch on the S2A-178 PCB
must
be reset when the unit is used as a power supply.
Verify the output voltage, output current, and the alarm and status lights to be sure the unit is operating
properly.
If the unit is not operating correctly check the connections again and read Section 12 , “TROUBLE
SHOOTING”.
10.0 ADJUSTMENTS
10.1 CURRENT LIMIT ADJUSTMENT
The current limit adjustment is factory set at approximately 115% of rated d.c. output current. The
adjustment provides a means of changing the rectifier current limit between 90-115% of rated output.
Turning the adjustment, which is located on the unit front panel, clockwise lowers the current limit;
turning counterclockwise raises the current limit.
CAUTION: CURRENT LIMIT MUST NOT EXCEED 115%. OF RATED OUTPUT CURRENT.
10.2 FLOAT ADJUSTMENT
The float adjustment is factory set at 2.17 volts/cell (Lead) or 1.4 volts/cell (N.C.). Turning the
adjustment, which is located on the front door of the unit, clockwise raises the float voltage (the F/E
switch must be in the float position). The adjustable range is as follows:
2.12-2.3 volts/cell +/- .1 Volts (Lead)
1.39-1.45 volts/cell +/- .1 Volts (N.C.)
Float-Equalize Switch:
(Some units have timers, See “Informer Accessory Alarm Package” section for information)
This switch is located on the unit front panel. When it is in the float position, the rectifier will maintain
the battery at the voltage level which was preset by the “Float” potentiometer adjustment and at the
same time maintain the load up to the rectifier’s rated output.