Wiring; Typical Wiring - Deif SGC 420 Mk II User Manual

3. Wiring

3.1

Typical wiring

NOTE The S2 terminals are internally short.
NOTE The wiring diagram is an example. Use the wiring diagram for the application during installation.
Fuses
• F1: 2 A DC max. time-delay fuse/MCB, c-curve
• F4, F5: 2 A AC max. time-delay fuse/MCB, c-curve.
Relays
• Protect the breaker relays for the genset and mains against 4 kV surges as described in the IEC 61000-4-5 standard.
• Protect relay cards used with the controller against reverse battery voltages.
Communication
Communication ports for CAN (terminals 58 and 59) and RS-485 (terminals 31 and 32) have built-in 120 Ω termination
resistors.
Digital outputs
If a digital output is connected to a relay, the relay must include freewheeling diodes.
User manual 4189341360A EN Page 13 of 99