Wiring; Caution In Wiring; Wiring Instructions - M-system M3-UNIT Series Operating Manual

8. WIRING

8.1 CAUTION IN WIRING

• Make sure for safety that only qualified personnel performs the wiring.
• In order to prevent potential electric shock, wire the unit after turning off the power supply and making sure that the
power is not supplied to the cable.
• Be sure to confirm the name and polarity of each terminal before wiring to the Euro type connector terminal blocks
(hereafter called 'terminal block(s)').
• Take measures to reduce noise as much as possible, e.g. by using shielded twisted pair wires for the input signal.
Ground the input shield to the most stable earth to prevent noise troubles.
• Do not connect anything to unused terminals.
• M-System offers a series of lightning surge protectors for protection against induced lightning surges. Please con-
tact M-System to choose appropriate models.

8.2 WIRING INsTRUCTIONs

■ APPLICABLE WIRE sIZE
• Solid: 0.25 to 2.5 mm
• Stranded: 0.25 to 2.5 mm
• Tinning wire ends may cause contact failure and therefore is not recommended.
• Expose wire conductors by 8 mm (0.31").
■ RECOMMENDED FERRULE
The following Phoenix Contact terminals are recommended.
• For single-wire
CROSS-SECTION AREA
0.2 to 0.25 mm 2
0.25 to 0.34 mm
2
0.34 to 0.5 mm 2
0.5 to 0.75 mm
2
0.75 to 1.0 mm 2
1.0 to 1.5 mm
2
8mm
Recommended manufacturer: Phoenix Contact GmbH & Co., KG
(0.55 to 1.75 dia.)
2
2 (0.55 to 1.75 dia.)
8mm
MODEL
AI 0,25-8 YE
AI 0,34-8 TQ
AI 0,5-8 WH
AI 0,75-8 GY
AI 1,0-8 RD
AI 1,5-8 BK
• For twin-wire
CROSS-SECTION AREA
0.34 to 0.5 mm 2
0.5 to 0.75 mm
2
0.75 to 1.0 mm 2
1.0 to 1.5 mm
2
8mm
M3LDY OPERATING MANUAL EM-2664-B Rev.0
MODEL
AI-TWIN 2X 0,5-8 WH
AI-TWIN 2X 0,75-8 GY
AI-TWIN 2X 1,0-8 RD
AI-TWIN 2X 1,5-8 BK
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