Magnum Energy ME-RTR Router - Manual (Page 82)

©
2014 Magnum Energy, Inc. Page 74
Troubleshooting
6.1 Troubleshooting Tips
6.1.1 Inverter Problems
• Inverter turned on, green LED on inverter blinking, no output: Inverter is in Search
mode. Either defeat Search mode, if not needed, or turn on loads greater than the 02A Search
Watts setting.
6.1.2 Charger Problems
• Unit won’t transfer to Charge mode with AC applied: Is CHG (charge) LED on router
blinking? If not, then the charger does not recognize the incoming as AC being within acceptable
limits. Measure the input AC voltage at the inverter input terminals, it should be 120VAC +/ 20
VAC (230VAC +/ – 40 VAC for export models). Also, check that the 03B Low VAC Dropout setting
on the router is 80 VAC or less (export models: 160 VAC or less). If the CHG LED is blinking, the
transfer relay should be closing within 20-30 seconds, and the unit should begin charging. If the
LED is on solid, the relay should be closed, and the charger should begin charging.
• Transfer relay closes, then opens and continues to cycle: AC voltage is too low, or has
transients that drop the AC voltage momentarily. Change the Low VAC Dropout setting to 60 VAC
(120VAC for export models) and check for improvements. If the cycling continues, back off the
charge rate from 100% to 10%.
This cycling may also be caused if the AC output of the inverter is connected to the inverter’s AC
input, check for proper input and output AC wiring.
• Charger not charging even though CHG LED is on steady and the unit says “Charging”:
Full charge rates are not obtained in “Charging” mode, only after this mode changes to a normal
charge stage (e.g., Bulk Charging, Absorb Charging, Float Charging, etc.).
• Charger not charging even though CHG LED is on steady and the unit says “Bulk
Charging” (or “Absorb Charging”): Check the DC amps meter and DC voltmeter on the router
display. It should be 80% or more of rated charge current if the battery voltage is under 14.0 VDC
(28.0 VDC on 24-volt models or 48.0 VDC for 48-volt models). If not, check the SETUP: 03E Max
Charge: Rate setting and verify the setting is 80% or greater. Still low charge rate? Remove all
the inverter AC loads and check the SETUP: 03A AC Input Amps setting. The SETUP: 03A AC Input
Amps setting must be 15 amps (25 amps for 3kW unit) or greater to receive the full charge rate.
• Charger
says “Float Charging” not “Bulk Charging” when the AC is fi rst plugged in:
Check DC voltmeter on the router display. If the battery is over 13.0 VDC (26.0 VDC for 24-volt
models or 52.0 VDC for 48-volt models) then the battery was already charged and the charger
automatically goes to Float Charging to keep from overcharging the batteries. Try the Start Bulk
setting from the CTRL: 02 Charger Control menu.
• Charge amps are lower than expected, or is 0 amps DC: Measure input AC voltage and
increase if the input voltage is under 90 VAC. The charge rate is reduced to keep the input voltage
above 90 VAC. Also, check the AC Input Amps and the Max Charge: Rate settings to determine
if the current is being limited.
• Charger output voltage is different than expected: This is normal when the Battery
Temperature Sensor (BTS) is connected to provide temperature compensated battery charging. If
the BTS is installed, the charge voltage settings will increase if the temperature around the BTS is
below 77° F (25° C) and decrease if the temperature around the BTS is higher than 77° F (25° C).