Magnum Energy Battery Monitor Kit ME-BMK - Manual (Page 35)

31 © 2010 Magnum Energy, Inc.
Troubleshooting
7.0 Troubleshooting
Info: Before using this table to troubleshoot, review Table 6-1,
LED Indicator Guide.
Use the table below and the Status display on your remote/router to deter-
mine the problem.
ME-RC50 - METER pushbutton, 04 BM: Status display
ME-ARC50 - METER pushbutton, 04A BMK Status display
ME-RTR - METER pushbutton, 04A BMK SOC display •
•
•
Symptom Solution
1. Battery meter
displays not
responsive and giving
incorrect readings; or,
2. BM Status = “No
Comm” or “Pwr-up
Fault”
Ensure LED on Sense Module is solid green
(indicates normal operation). If not green, use
Table 6-1, LED Indicator to troubleshoot.
If the LED is green, disconnect the terminal
block for 5 seconds and then reconnect to reset
the Sense Module.
AH I/O reading resets This is normal. After a full battery has
discharged ≥ 0.5% of the its capacity, the AH
I/O synchronizes and the value resets.
DC Volts reading is
incorrect
Measure the voltage between the red (terminal
4/positive) and black (terminal 3/negative) wire
on the terminal block in the Sense Module. If
the voltage at the Sense Module and the voltage
displayed on the remote’s/router’s display differ
by more than 0.2 volts, then examine these
wires for an open circuit or a bad connection.
Reconnect or replace if necessary. Voltage from
terminal 3 to 4 must be from 7 to 70 volts DC.
DC Amps reading is
incorrect
Examine the twisted-pair wires (orange and
blue) for an open circuit or bad connections.
Reconnect or replace if necessary. Ensure the
wires are fully twisted up to the Sense Module
and to the DC shunt.
DC Amps polarity
reading is reversed
(i.e., positive while
inverting and/or
negative while battery
charging)
The leads from the twisted-pair (orange and
blue) to the shunt sense screws are reversed.
Reverse the leads of the twisted-pair wire on
the shunt or at the terminal block. See Figure
2-3 for the correct wiring sequence.
The Min DC or Max
DC displays show 0.0
volts
The battery monitor is not communicating.
Check that the connections to the Sense Module
are correct.
Table 7-1, Troubleshooting Guide