IAI America ERC3 - Manual (Page 100)

Chapter 2 Installation
2.3 How to Install
90
[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
more
90mm
30mm or
more
30mm or
more
30mm or
more
30mm or
more
Surge absorber
Relay
coil
Relay coil
R
C
+24V 0V
+24V 0V
+ -