IAI PSA-24, Instruction Manual

Page: 34 / 84

2.2 Heat Dissipation and Mounting
2-3
2.
Ins
ta
llat
ion
Class D grounding construction
(Former class 3 grounding: grounding
resistance 100 Ω or less)
Grounding wires should not be connected in
common with other devices and separate
power supplies should be installed.
Controller
Other devices Other devices
Other devices
Controller
2.2 Heat Dissipation and Mounting
Item Specifications
Installation
Installation direction
*1
Horizontally mounted
Installation method Screw mounted or DIN rail mounted
Ground Independent grounding via class D grounding
*2
Restrictions in ambient environment Refer to Figure 2.2.3
*3
*1: The only possible installation orientation is below.
Figure 2.2.1 Control panel interior installation direction
*2: Grounding helps to prevent electric shocks and electrostatic charging, improves noise
resistance performance, and suppresses unnecessary radiation, so should be conducted as
shown below.
Figure 2.2.2 Grounding precautions
Forced cooling (natural convection) airflow direction