G80XW/XF, G115XW/XF, G150XW/XF, G200XW/XF - 50HZ
OPERATION & MAINTENANCE MANUAL
105
G100XW/XF, G135 XW/XF, G170XW/XF, G225XW/XF - 60Hz
System Checks and Measures
For initial installation, it is recommended for you to check any disconnection in circuits before taking measures described
below.
Step 1)
Check the battery voltage whether it is higher than the Low Voltage setting value. If normal, supply power to the
controller and then operate it. If the voltage is lower than the setting value, you need to charge the battery or replace it
before operating the system.
Step 2)
Check the input resistance in the DC +24V input terminals (-E, +F) of the battery whether the resistance is higher
than approx. 10K Ohm. If the resistance does not meet this condition, do not supply power to the controller and contact
our A/S center for service request.
Step 3)
Check whether the power LED turns on or not after supplying power to DC +24V input terminals (-E, +F) of the
battery. If the LED does not turn on, cut the power off and contact our A/S center for service request.
Step 4)
Check whether the power LED turns on and Doosan logo appears on the LCD display after supplying power to
DC +24V input terminals (-E, +F) of the battery. If you cannot see the logo, press LCD key button to check the LCD
display once again. If you cannot still see the logo, cut the power off and contact our A/S center for service request.
Step 5)
Check the controller terminals (C & D) with AC meter or oscilloscope to check whether signal inputs of AC RMS
3Vor higher are detected. If no signal detected, check whether the pick-up sensor maintains the gap between 0.9 and
1.1mm and then check whether the pick-up sensor has resistance of 110Ohms (±10%). If you cannot still detect no
signal, replace the pick-up sensor and then operate the controller.
