Specifications

TROUBLE SHOOTING
EN / GMDSS Mass Charger Alarm Interface / January 2013 / Copyright © 2013 Mastervolt 15
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 Possible cause What to do
No display function Error in the wiring Check wiring for errors especially the DC power supply
(section 4.3, step 8)
No current measurement Error in the wiring Check wiring for errors especially the twisted wires
between the shunt and the panel (section 4.3, step 8)
No load connected or batteries
are full.
Check the load.
Current measurement not
accurate
Part of the load or charger is
connected at the battery side of
the shunt
Check whether all connections to the negative pole are
connected at the load side of the shunt (section 4.3,
step 4)
Distortion on the shunt wiring 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!
Corrosion on the shunt wiring Replace wiring Take adequate measures to avoid
corrosion of the wires and connections!
Voltage reading shows 0,00 Error in the wiring Check wiring for errors especially the voltage sense
wires (section 4.3, step 8)
Fuse (2A) blown Investigate the cause of the blown fuse. Then replace
the fuse
Battery voltage less than 8 Volt Charge the battery
Batteries have been left standing
without being used for a longer
period
Recharge the batteries up to 100%.
Parameter settings can not be
changed at the install menu
Adjustment of settings is locked
every time you enter the install
menu.
Unlock the settings of the GMDSS Interface (see
section 3.3.2, F0)
Back light and LED-bar switch
off after 10 seconds
Setting for Backlight set to OFF Press one of the buttons or refer to section 3.3.2, F7 to
change the backlight settings.
The GMDSS Interface shows
incorrect alarms
Wrong setting of the parameters See section 3.3.2, F8 till F12 for the correct setting of
the parameters.
Wrong connection of relay contact Connect the external relay to the correct terminals (see
section 6.1)
Communication between the
GMDSS-panel and the Battery
charger was interrupted
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).
Alarm function is triggered by
a short time voltage dip
Wrong setting of the alarm delay
time.
Increase the delay time (see section 3.3.2, F12)
Audible alarm is not activated
when an Alarm occurs.
Buzzer function deactivated. Switch on buzzer function (see section 3.3.2, F4)