OPERATING INSTRUCTIONS RH 340 Electric OPeration Battery main switch, switching on and off
Electrical system (24V), switching on and off
When the excavator is disconnected from the medium voltage (7.2kV) the electrical system (24V) is supplied with voltage by two batteries.
The electrical system is switched on or off with key-switch (32, Fig. 2-71:).
With the battery main switch, the electrical system (24V) is disconnected from the batteries. The battery main switch is located at the right side wall of the control cabinet (24V). The control cabinet (24V) is mounted in the driver's cab module beneath the driver's cab.
Switching the battery main switch on Insert switching handle into battery main switch (position "0", Fig. Fig. 2-70:) and turn it to position "I".
Switching the battery main switch off Turn switching handle from position "I", Fig. Fig. 2-70: to position "0" and withdraw.
Switching the electrical system (24V) on Insert key into key-switch (32) and turn to the right. Now all electronical assemblies of the excavator are supplied with voltage, computer systems are started. A selftest is carried out. The Board Control System (BCS) displays current operating data as well as detected faults. If there are no critical faults detected BCS enables starting the electric motor. If there are critical faults or failings detected BCS disables starting the electric motor and displays corresponding explanatory text. For more information see "Operating Instructions Board-Control-System".
Switching the electrical system (24V) off Turn key in key-switch (32) to the left and withdraw
Fig. 2-70:
Fig. 2-71:
BA RH340(3 725 090.00)-EN
2-63
