5 TROUBLE SHOOTING
If you cannot solve a problem with the aid of this table, contact your local Mastervolt Service Centre. See www.mastervolt.com.
Make sure you have the Article and serial number (see section 1.6) as well as the Software version (see section 3.3.2) of the
GMDSS-Interface present if you have to contact your local Mastervolt Service Centre to solve a problem.
Malfunction
No display function
urrent measurement
No c
Current measurement not
accurate
Voltage reading shows 0,00
Parameter settings can not be
changed at the install menu
Back light and LED-bar switch
off after 10 seconds
The GMDSS Interface shows
incorrect alarms
Alarm function is triggered by
a short time voltage dip
Audible alarm is not activated
when an Alarm occurs.
EN / GMDSS Mass Charger Alarm Interface / January 2013 / Copyright © 2013 Mastervolt
Possible cause
Error in the wiring
Error in the wiring
No load connected or batteries
are full.
Part of the load or charger is
connected at the battery side of
the shunt
Distortion on the shunt wiring
Corrosion on the shunt wiring
Error in the wiring
Fuse (2A) blown
Battery voltage less than 8 Volt
Batteries have been left standing
without being used for a longer
period
Adjustment of settings is locked
every time you enter the install
menu.
Setting for Backlight set to OFF
Wrong setting of the parameters
Wrong connection of relay contact
Communication between the
GMDSS-panel and the Battery
charger was interrupted
Wrong setting of the alarm delay
time.
Buzzer function deactivated.
What to do
Check wiring for errors especially the DC power supply
(section 4.3, step 8)
Check wiring for errors especially the twisted wires
between the shunt and the panel (section 4.3, step 8)
Check the load.
Check whether all connections to the negative pole are
connected at the load side of the shunt (section 4.3,
step 4)
Replace wiring by twisted pair cable between the shunt
and the panel (section 4.3, step 8). Keep this wiring
away from other nois producing conductors!
Replace wiring Take adequate measures to avoid
corrosion of the wires and connections!
Check wiring for errors especially the voltage sense
wires (section 4.3, step 8)
Investigate the cause of the blown fuse. Then replace
the fuse
Charge the battery
Recharge the batteries up to 100%.
Unlock the settings of the GMDSS Interface (see
section 3.3.2, F0)
Press one of the buttons or refer to section 3.3.2, F7 to
change the backlight settings.
See section 3.3.2, F8 till F12 for the correct setting of
the parameters.
Connect the external relay to the correct terminals (see
section 6.1)
Enable the Continuous monitoring mode on the battery
charger to keep alive the communication between the
GMDSS-panel and the Battery charger (see section
4.5).
Increase the delay time (see section 3.3.2, F12)
Switch on buzzer function (see section 3.3.2, F4)
TROUBLE SHOOTING
15
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