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3.13 Digital outputs
Category
Controller terminals
Number of outputs
Type
Maximum current rating
Software configurable options
NOTE
•
Do not connect the Starter motor relay and the Stop solenoid directly to the controller's output terminals. It is
recommended to connect terminals 3 and 4 to Start and Stop.
•
Genset and mains contactor latching relays should be compiled against 4 kVA surge as per IEC-61000-4-5 standard.
3.14 Actuator outputs (SGC 421 only)
Category
Controller terminal
Type
Max. current
The actuator outputs are used only for the Rotary actuator, if installed. The Rotary actuator is a 4-wire actuator that is used for
creating an electronic governing application in case of a mechanical fuel system engine. In diesel engines, the Rotary actuator's
shaft output gets mechanically connected to the stop lever or the throttle lever of an in-line or rotary fuel injection pump. In case of
petrol or natural gas engines, the Rotary actuator's shaft output gets connected to the throttle/charge control valve.
It is recommended to follow the connection details of the Rotary actuator connector and SGC 121.
3.15 D+ Charger alternator
Category
Controller terminal
Voltage range
Excitation
Accuracy
The charge fail is a combined input and output terminal. When the genset starts, the terminal provides controlled power output to
excite the charging alternator. After the excitation is successfully done, the controller reads the charging alternator's output voltage
for monitoring its health. The action for charge fail is configurable.
USER MANUAL 4189341227A UK
Specifications
3, 4, 5, 6, 7, 8, 9
7
DC outputs
5 A (3 and 4)
1 A (5, 6, 7, 8, 9)
Start relay, Fuel relay, Close genset contactor, close mains contactor, Stop
solenoid and many more (see Controller overview, Configurable
parameters in the User manual for more details).
Specifications
17, 18. 19 and 20
Stepper motor drive
800 mA
Specifications
10
0 to V
BATT
V
= 8 to 32 V DC
BATT
PWM (power limited to 3 W, 12 V/250 mA, 24 V/125 mA)
±2 % of full scale
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