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Figure 6 - Wiring The I/o Line - Honeywell 2MLL-PSRA User Manual

Pnet i/f module.
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Precautions while handling the product
The following precautions must be taken while handling the product.
Recheck the I/O standard specification: Apply input voltage and output voltage
as per standard specification. If the voltage exceeds the maximum capacity, it may
cause failure, breakage, and fire.
Selection of wire: Select the wire considering the ambient temperature and
allowable current. The minimum cable specification of the wire should be AWG24
Environment: If the I/O wiring is close to a heat generating machine or material,
or if the wiring is in direct contact with oil for a long time, it may cause short-circuit,
breakage, and failure.
Polarity: Check the polarity before applying power to the terminal block. Do not
wire the AC input power to the 24V DC external power supply terminal that is
located on the edge of the basic unit input part. In case of DeviceNet, if you provide
24V power to the communication cable, then it is not necessary to wire separately.
When wiring the I/O line with high voltage cable and the power cable
together, induction obstacle occurs, and it may cause the failure and
Do not pass the cable in front of I/O action indication part (LED). (Because it
prevents from distinguishing the I/O indication.)
In case the inductive load is connected to the output part, connect the surge
killer or diode to the load in parallel. Connect the cathode of the diode to the '+'
side of the power.
Pnet I/F Module 2MLL-PSRA, 2MLL-PSEA User's Guide
November 2011
Figure 6 – Wiring the I/O line
3. Installation and wiring
3.1. Installation


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