ABB ACS580 Series - Page 234

19…21
RO1
22…24
RO2
25…27
RO3
EFB
EIA/R5-485
34…38
STO
40, 41
Ext. 24 V
10…12
24 V
GND
13…15
DI
16…18
DI
1…3
AI1
4…6
AI2
7…8
AO
SLOT 1
SLOT 2
2
1
Isolation areas
Panel port1
Power unit connection at the bottom of the con-
trol unit
2
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.
234 Control unit