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Magnum XS 450 Power System –48 VDC User’s Manual Page 31
1. Monitor battery current and verify that it is +/- 0.1 A.
2. Set battery maximum recharge setting by determining the entire battery string capacity
and dividing by 10 hours. This setting will recharge the battery in 10 hours.
3. Enter this value in the Max Batt Rech screen.
4. Monitor the battery current while closing the battery disconnects or installing open
battery links. Arcing can occur during this connection.
5. The voltage may drop if the maximum battery recharge current is exceeded.
6. The current should gradually decrease when the battery is nearing full charge.
LVD Test
1. Enable the LVDs that are installed.
2. Set the LVD trip for each LVD 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 alarms while removing and replacing NH2 style 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.
Output Relay 1:
1. Minor and Major output relays were tested in the rectifier test section.
2. Change the alarm to desired relay output via the controller for any relay output that will
be used. All alarm parameters are shipped as either major or minor, but may be
changed to output relay 1.
3. Program output relay 1 to desired major or minor alarm to complete programming.
4. Exercise the output relay by causing the alarm to change state.
5. Verify the desired relay output on the controller module.
Battery Temperature Compensation
1. Enable battery temperature compensation if desired.
2. Ensure that battery temperature probe is connected to the system and attached to the
battery.