2] precautions regarding wiring method, 3] noise sources and elimination, 4] cooling factors and installation – IAI America ERC3 User Manual

Page 100

Chapter 2 Installation

2.3 How to Install

[2] Precautions regarding wiring method

1) Wire is to be twisted for the power supply.

2) Separate the signal and encoder lines from the power supply and power lines.

[3] Noise Sources and Elimination

Carry out noise elimination measures for electrical devices

on the same power path and in the same equipment. The

following are examples of measures to eliminate noise

sources.

1) AC solenoid valves, magnet switches and relays

[Measure] Install a Surge absorber parallel with the coil.

2) DC solenoid valves, magnet switches and relays

[Measure] Mount the windings and diodes in parallel.

Select a diode built-in type for the DC relay.

[4] Cooling Factors and Installation

1) PIO Converter

Design and Build the system considering the size of the controller box, location of the controller

and cooling factors to keep the surrounding temperature around the controller below 40°C.

100mm or more

50mm or more

100mm or more

30mm or

90mm

30mm or

Surge absorber

Relay

coil

Relay coil

+24V