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Magnum VS –48 Vdc User’s Manual Page 18
Rectifier Test:
1. To verify that all rectifiers are reporting correctly to the controller, navigate through the
menu and verify that the status for every rectifier in the system is correct.
2. Remove any rectifier and verify that you get a Minor Relay Output for rectifier 1 of n
failure.
3. Remove a second rectifier and verify that you get a Major Relay Output for rectifier 2 of n
failure.
Battery Power Up
1. Monitor battery current and verify that it is +/- 0.1 A.
2. Set battery maximum recharge value in the Max Batt Rech screen.
3. Monitor the battery current while closing the battery disconnects or installing open battery
links. Arcing can occur during this connection.
4. The voltage may drop if the maximum battery recharge current is exceeded.
5. The current should gradually decrease when the battery is nearing full charge.
LVD Test
1. Enable LVD 1.
2. Set the LVD trip for LVD 1 to negative 56 Vdc.
3. The LVD should have dropped out (opened). Verify by monitoring the voltage at the
battery connection. Also, the minor alarm should be on.
4. Set LVD Trip back to negative 42 Vdc.
5. The LVD should have closed. Verify visually or by monitoring the voltage at the battery
connection. The minor alarm should be off.
6. Ensure that the LVD parameters are set to desired value.
Circuit Breaker/ Fuse Test:
1. Monitor alarm screen for fuse alarm while installing blown GMT fuses in each position.
2. Verify proper voltage at fuse and circuit breaker output connections.
3. Turn on fuses and circuit breakers as desired.
User Inputs
1. Change the user input to desired output relay via the controller for any input that will be
used.
2. Exercise the output relay by causing the user input to change state.
3. Verify the desired relay output LED on the controller module.