User manual - ATR121 - 13
5.1
Electrical wirings
Although this controller has been designed to resist electro-
magnetic interferences in industrial environments, please
observe following safety guidelines:
• Separate control line from power wires.
• Avoid proximity of remote control switches, electroma-
gnetic contactors, powerful engines and in all instances
use specific filters.
• Avoid proximity of power groups, especially those with
phase control.
• Wiring of pins use crimped tube terminals or flexible/rigid
copper wire with diameter 0,2 to 1,5 mm
2
(min. AWG24,
max. AWG16, operating temperature: min. 70°C). Cable
stripping lenght 7 to 8 mm.
5.2
Wiring diagram
5.2.a
Power supply
1 2
12..35 VDC
+-
12..24 VAC
ATR121-AD: Class 2 source
12..24Vac ±10% 50Hz/60Hz
12..35Vdc (comply with polarity)
Use copper conductors only
Categoria di sovratensione: II
1 2
Vac supply
ATR121-B:
230Vac ±10% 50/60Hz
Use copper conductors only
Categoria di sovratensione: II
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