SPS Specifications,
Environmental
The range of possible temperatures under which the SPS may function are between 0 C
Requirements
and 50 C (120 F).
The SPS operates normally under non-condensing humidity conditions up to 93% relative
humidity at 32° C.
SPS Configuration
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configuring "}{xe "card configuration: system power supply (SPS)"}{xe "card
configuration: remote power supply (RPS)"}
This section contains information about SPS jumpers, DIP switches and potentiometers.
Overview
P2: If the SPS IDNet outputs are being used, you may change P2 to configure the IDNet
Jumper Settings
shield connection.
P3: City Card and Relay Card operation
P1: Earth connect jumper.
Refer to Appendix A to set the device address for the SPS with DIP switch SW1.
Setting the Device
Address
There are two small potentiometers on the 4100-9848AU SPS, situated below the centre
Adjusting Voltages
of the PCB. These are adjusted in the factory and typically will not need adjusting in the
field.
If it is necessary to adjust them, turning the potentiometer clockwise increases the setting.
R341 Battery Charger Voltage
Adjust this potentiometer to achieve a charger voltage of 27.3V 0.1V at 20C.
(Allow -36mV/C for temperatures different to 20C). Disconnect the battery while
making this adjustment, and measure the charger output at the SPS terminals. Reconnect
the battery after making the adjustment.
Continued
Additional alarm conditions: Fault relay activated, power fault LED on,
IDNet LED on, battery charger off, auxiliary power load = 0 mA, NAC
alarm load = 0 mA, IDNet = 35 V
Position 1 – 2 (bottom): Connects the shield to 0 V (default).
Position 2 – 3 (top): Connects the shield to earth ground.
Position 1-2 (top): Install in pos. 1-2 only if a relay card 4100-6033 is installed and
has relay 3 programmed for operation other than "Fault (Trouble)"
Position 2-3 (bottom): (default) For use with 4100-6033 if relay 3 is programmed for
"activate on fault (trouble)" operation. (This option is used for Brigade connection)
Position 1 – 2 (rhs): Enables Earth fault monitoring. Set to this position unless the
system uses a TrueAlert Power Supply under common 0 V.
Position 2 – 3 (lhs): Disables Earth fault monitoring. Set to this position only if the
system uses a TrueAlert Power Supply under common 0 V.
5-4
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