Denyo DCA Series - Stopping; Cautions of Operation; Protective Devices; Protective Devices for Remote Operation

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4-4-3 Stopping
(1) Stop-signal ( OFF ) is sent from external devices.
(2) The engine will stop, and it will confirm stop-condition for T4 sec.
If the engine cannot stop by the stop-signal, or if you need to stop the engine during remote
operation, turn the LOCAL-REMOTE CHANGE-OVER SWITCH to “ LOCAL ” position, and
turn the starter switch to “ STOP ” position.
Note: Refer the attached time chart for the detail.
4-5 Cautions of operation
(1) In case of remote operation, Keep people away from this machine because it may start
suddenly without prior notice.
(2) While this machine is running, don’t operate the local-remote changeover switch except an
emergency case.
4-6 Protective devices
4-6-1 Protective devices for remote operation
The following protective devices are provided against abnormalities during the operation.
 Starting failure : In case that engine cannot start within the setting time.
 Low oil pressure : In case that the oil pressure becomes lower than the setting value.
 High water temp : In case that the cooling water temp. becomes higher than the setting value.
 Emergency shutdown : In case of emergency engine shutdown by the emergency stop
button on this machine.
 Overcurrent : In case that the circuit breaker trips.
 Overspeed : In case that the engine speed becomes higher than the setting value.
 Earth leakage : In case that the eletctric leakage the device act.
Mark ○ : Action
Mark △ : Action after engine shutdown
ASSORTMENT Generator
Fault
Output
Engine
Shutdown
Circuit
Breaker
trip
Starting failure
△ ○
Low oil pressure
△ ○
High water temperature
△ ○
Emergency shutdown
△ ○
Overcurrent
○
Earth leakage
○
Overspeed
△ ○
If these protective devices have acted, check these causes, and remedy them.