ABB ACH580-01 Hardware Manual page 293

Isolation areas, R6...R9
Symbol
1
2
The terminals on the control board 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 outputs).
Note: There is functional insulation between the individual relay outputs.
Note: There is reinforced insulation on the power unit.
X15
X1:1...3
AI1
X1:4...6
AI2
X1:7...8
AO
X2
24 V
GND
X3:1...3
DI
X3:4...6
DI
X4
STO
2
Panel port X12
Description
Power unit connection
I/O extension
Reinforced insulation (IEC/EN 61800-5-1:2007)
Functional insulation (IEC/EN 61800-5-1:2007)
SLOT1
FBA
X5
EFB
SLOT2
Technical data 293
1
X10
Ext. 24 V
X8
RO1
X7
RO2
X6
RO3