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ENGLISH-22
Wiring work
• Field-supplied electrical components such as power switch, circuit breakers, wires, terminal blocks, etc must be
properly chosen with compliance with national legislation or regulation .
• Switch off the power supply before making any connections .
• All field wiring and components must be installed by a licensed electrician .
• Use a dedicated power supply .
• All power connections must be protected from dew condensation by thermal insulation .
• The system shall be earthed . Do not earth the unit to a utility pipe, surge absorber or telephone earth .
Incomplete earth may cause electrical problems .
CAUTION
Layout of PCB
1
ON
2
3
4
SMPS circuit
Micom
LED
EEPROM
2-WIRE COMM
Load control
Fuse
01
02
03
04 05 06 07
08
09
10
11
17
16
15
14
13
12
DIP switch