Commissioning and operation
43
Operating the emergency operation unit
Requirements for operation / activation / deactivation:
D Operation of the emergency operation control system is only permitted in neutral posi-
tion of the command master of the control lever system
D The emergency operation control system should only be activated when the engine is
running. Otherwise, the LED “System Failure” flashing indicates that the engine speed
signal is missing
D The engine should be switched off using the ignition
When the emergency stop switch is activated while the ignition is on, the LED “System
Failure” lights up on the Em-C operating unit, as the active systems EDC engine control
and emergency operation unit are switched off by the emergency stop.
The LED “System Failure” goes out when the emergency stop switch is unlocked.
Operation / function of emergency operation unit in operation:
Enabling emergency operation unit
The system is ready for operation (standby) after the ignition is switched on. This is indi-
cated by the green LED “Power On”. The red LED (Failure) must not light up.
Pressing the “EM.Op On” key twice can now activate the emergency operation system:
The first press of the key requests emergency operation. The key flashes for ap-
prox. 6 seconds in cycles and an acoustic signal is sounded. During this period,
the request must be confirmed by a second press of the key. The key lights up
permanently as soon as emergency operation has been activated.
If the confirmation by the second press of the key is not given, the system returns
to the initial position (power on – standby).
Note:
Once the emergency operation system has been activated, switching back to
normal control lever operation only takes place when the engine is switched off
(at least 3 seconds ignition OFF).
Em.Op
On
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