ABB ACH580-31 Hardware Manual page 145

Isolation areas
1...3
AI1
4...6
AI2
7...8
AO
10...12
24 V
GND
13...15
DI
16...18
DI
34...38
STO
1
1 Panel port
2 Power unit connection at the bottom of the con-
trol unit
Reinforced insulation (IEC/EN 61800-5-1:2007,
UL 61800-5-1 First edition)
Functional insulation (IEC/EN 61800-5-1:2007, UL
61800-5-1 First edition)
The terminals on the control unit fulfill the Protective Extra Low
Voltage (PELV) requirements (EN 50178): There is reinforced
insulation between the user terminals which only accept ELV
voltages and terminals that accept higher voltages (relay out-
puts).
Note: There is functional insulation also between the individual
relay outputs.
Note: There is reinforced insulation on the power unit.
Control unit 145
SLOT 1
2
EFB
EIA/R5-485
SLOT 2
40, 41
Ext. 24 V
19...21
RO1
22...24
RO2
25...27
RO3