Alpha Technologies Spectra Series - Manual (Page 27)

Preliminary Operating Instructions 27 of 62 AIP SERVICE NUMBER 1-800-863-3364
The Summary Relay coil will also be de-energized after the board detects a fault for 30 seconds.
This will change the Relay Contact Connections on the JP2 terminal strip. With a fault the relay
coil will be de-energized and there will be continuity from “C” (common) to “NO” (normally open)
and no continuity from “C” to “NC” (normally closed). With no faults the relay will be energized
and there will be continuity from “C” (common) to “NC” (normally closed) and no continuity from
“C” to “NO” (normally open) on the JP2.
External wiring can be connected to the JP2 terminal block connections for external fault
detection. See SECTION 19 for information about the Alarm relay contact ratings.
10.1.3 GFI JUMPER
The GFI (Ground Fault Indicator) Jumper can be used to Enable (pins 2-3 of JP4) or Disable the
GFI faults. To disable the GFI, remove the Jumper from pins 2 and 3 of JP4 on the bottom edge
of the board. See the Alarm Settings menu SECTION, 11.3.4, for GFI setting information.
10.1.4 INTERNAL TEMPERATURE SENSOR
The Internal Temperature Sensor is located on the SCR Driver Board. It can be used for
monitoring the Charger temperature and also can be used for charger controlled temperature
compensation. See the DC Settings/Temp Comp SECTION, 11.3.3, for more information.
10.1.5 OPTIONAL REMOTE TEMPERATURE SENSOR CONNECTOR
The Optional Remote Temperature Connector is located on the SCR Driver Board. It allows the
optional Remote Temperature Sensor to be used to monitor battery temperature. It can also be
used for charger controlled temperature compensation based on the battery temperature. This is
the preferred method of temperature compensation because the battery voltage is adjusted
based on the battery temperature. See the DC Settings/Temp Comp SECTION, 11.3.3, for more
information.
10.2 CONTROL BOARD FEATURES
The charger control board has a 16-character alpha numeric Liquid Crystal Display (LCD), 5 Push
Buttons, 4 Light Emitting Diodes (LED’s), a button lockout jumper connector, and a beeper. These
features allow the operator to view the status of the charger functions and to change the charger
settings. Their operation is described in the following sections. See FIGURE 10.2 for Control Board
layout information.
FIGURE 10.2: CONTROL BOARD