4 Operating From a Personal Computer
Operation Guide Flatpack MCU,
351300.013, v8-2006-07
45
4.9.7 Relay Test
This facility is used to test-operate the alarm relays, the low voltage disconnect contactors (LVD1, LVD2 and LVD3 if
enabled, Ref. chapter System Configuration.), in order to test any external monitoring equipment connected to the
system's alarm relay outputs.
To test-operate alarm relay number 1, select Relay 1. The contacts on Relay 1 will toggle and the external wiring can be
tested and verified. Do the same test for all alarm relays that are used / require testing.
The alarm relays have fail-safe functionality. The relay coils are all energized ("ACTIVATED") when there are no
alarms.
"DEACTIVATED" ⇒ ALARM.
LVD 1,LVD 2 and LVD 3 are programmable outputs that are used to control either a Low Voltage Battery Disconnect
unit (LVBD) or a Low Voltage Load Disconnect unit (LVLD) hereby called by a common name “LVD”. Testing
these functions will
disconnect batteries and/or loads.
To test-operate LVD control output 1, select LVD 1. "DEACTIVATED" means that batteries or load are disconnected.
To test-operate LVD control output 2, select LVD 2. "DEACTIVATED" means that batteries or load are disconnected.
Whether batteries or load are disconnected, depends on the system configuration.
To test-operate LVD control output 3, select Relay 11/LVD3.
When the tests have been terminated and the Relay Test menu is exited, the Flatpack MCU will automatically
reset the relays and LVD outputs to their normal state.
9 NOTE: Operating “LVD1” “LVD2” or “LVD3” will disconnect either batteries or load. Only
perform tests of “LVD1”, “LVD2” or “LVD3”, when it is acceptable to lose the battery backup
during a test of a Low Voltage Battery Disconnect unit and/or experience shutdown of the
load(s) during a test of a Low Voltage Load Disconnect unit.
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