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microSD Card Installation and Removal
▪ Use proper precautions to prevent Electro-Static Discharge (ESD) while servicing the microSD
card.
1. To install the microSD card slide it into the slot
as shown in the accompanying figure, until the
card clicks into place.
2. To remove the card, press it into its slot lightly,
the spring ejects it.
Wiring
▪ This equipment is designed to operate only at SELV/PELV/Class 2/Limited Power environments.
▪ All power supplies in the system must include double insulation. Power supply outputs must be
rated as SELV/PELV/Class 2/Limited Power.
▪ 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 should be performed while power is OFF.
▪ Use over-current protection, such as a fuse or circuit breaker, to avoid excessive currents into the
power supply connection point.
▪ 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.
Caution
▪ To avoid damaging the wire, use a maximum torque of 0.5 N·m (4.4 in-lb).
▪ Do not use tin, solder, or any substance on stripped wire that might cause the wire strand to
break.
▪ Install at maximum distance from high-voltage cables and power equipment.
Wiring Procedure
Use crimp terminals for wiring; use 26-12 AWG wire (0.13 mm
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.
▪ Use shielded twisted pair cables for wiring High Speed and Analog I/O signals.
Use shielded cables for wiring thermocouple and RTD signals.
In either case, do not use the cable shield as a signal common / return path.
▪ Route each I/O signal with its own dedicated common wire. Connect common wires at their
respective common (CM) points at the controller.
Unitronics
2
–3.31 mm
2
)
UniStream
®
PLC
7
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