Deif SGC 420 - Introduction; About SGC 420;421; Key functions; Product overview

1. Introduction
1.1 About SGC 420/421................................................................................................................................................................................................................... 4
1.2 Key functions............................................................................................................................................................................................................................... 4
1.3 Product overview....................................................................................................................................................................................................................... 4
1.4 Passwords..................................................................................................................................................................................................................................... 5
1.5 Overview of controller buttons...........................................................................................................................................................................................6
1.6 Legal information.......................................................................................................................................................................................................................6
2. Safety instructions
2.1 General safety instructions.................................................................................................................................................................................................. 7
2.2 Electrical safety...........................................................................................................................................................................................................................7
2.3 In operation safety.....................................................................................................................................................................................................................7
3. Technical specifications
3.1 Terminals........................................................................................................................................................................................................................................ 8
3.2 Power supply................................................................................................................................................................................................................................8
3.3 Genset voltage and frequency measurements..........................................................................................................................................................9
3.4 Genset current measurements...........................................................................................................................................................................................9
3.5 Earth Leakage/Fan Current Monitoring......................................................................................................................................................................... 9
3.6 Mains voltage and frequency measurement............................................................................................................................................................ 10
3.7 Digital inputs..............................................................................................................................................................................................................................10
3.8 Analogue resistive sensor inputs.................................................................................................................................................................................. 10
3.9 Analogue inputs used as digital inputs.......................................................................................................................................................................11
3.10 Analogue voltage/current input.................................................................................................................................................................................... 12
3.11 Site battery inputs................................................................................................................................................................................................................ 12
3.12 Magnetic pick-up (MPU) input........................................................................................................................................................................................12
3.13 Digital outputs........................................................................................................................................................................................................................ 13
3.14 Actuator outputs (SGC 421 only)................................................................................................................................................................................. 13
3.15 D+ Charger alternator.........................................................................................................................................................................................................13
3.16 Sensor common point........................................................................................................................................................................................................14
3.17 Communication ports.........................................................................................................................................................................................................14
4. Installation
4.1 Dimensions.................................................................................................................................................................................................................................15
4.2 Mounting in panel....................................................................................................................................................................................................................15
4.3 Terminal details........................................................................................................................................................................................................................ 16
4.4 Typical wiring diagrams.......................................................................................................................................................................................................18
5. Monitoring mode
5.1 Monitoring mode......................................................................................................................................................................................................................20
6. Configuration mode
6.1 Configuration mode............................................................................................................................................................................................................... 22
6.2 Configurable parameters.................................................................................................................................................................................................... 22
6.2.1 Configurable parameters..............................................................................................................................................................................................22
6.2.2 Module..................................................................................................................................................................................................................................23
6.2.3 Digital inputs...................................................................................................................................................................................................................... 25
6.2.4 Analogue inputs................................................................................................................................................................................................................25
6.2.5 Outputs.................................................................................................................................................................................................................................32
6.2.6 Timers...................................................................................................................................................................................................................................32
6.2.7 Generator............................................................................................................................................................................................................................33
6.2.8 Mains.................................................................................................................................................................................................................................... 36
USER MANUAL 4189341227A UK Page 2 of 86