MSA ModCon 75, Инструкция по эксплуатации

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34
ModCon®75 Touch
Chapter 7,
ModCon75 Wiring
General Wiring
•
Do not connect either the “Neutral” or “Line” signal of the 110/220VAC to device’s 0V
point.
•
Do not touch live wires.
•
All wiring activities are to be performed while power is OFF.
•
Use over-current protection, such as a fuse or circuit breaker, to avoid excessive
currents into the I/O module supply port.
•
Unused points should not be connected (unless otherwise specified). Ignoring this
directive may damage the device.
•
Double-check all wiring before turning on the power supply.
FAILURE TO FOLLOW THESE WARNINGS CAN RESULT IN SERIOUS PERSONAL
INJURY OR LOSS OF LIFE.
Note:
•
To avoid damaging the wire, use a maximum torque of 0.5 Nm (5kgf-cm).
•
Do not use tin, solder or any substance on stripped wire that might cause the wire
strand to break.
Wiring Procedure
Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm2 – 3.31 mm2
).
1. Strip the wire to a length of 7+/-0.5mm (0.250-0.300 inches).
2. Unscrew the terminal to its widest position before inserting a wire.
3. Insert the wire completely into the terminal to ensure a proper connection.
4. Tighten enough to keep the wire from pulling free.
Wiring Guidelines
In order to ensure that the device will operate properly and to avoid electromagnetic
interference:
•
Use a metal cabinet. Make sure the cabinet and its doors are properly earthed.
•
Use wires that are properly sized for the load.
•
Route each I/O signal with its own dedicated common wire. Connect common wires at
their respective common (CM) points at the I/O module.
•
Individually connect each 0V point in the system to the power supply 0V terminal.
•
Individually connect each functional earth point ( ) to the earth of the system
(preferably to the metal cabinet chassis). Use the shortest and thickest wires possible:
less than 1m (3.3’) in length, minimum wire size 14 AWG (2 mm
2
).
•
Connect the power supply 0V to the earth of the system.