Vacon NX User Manual page 90

vacon • 88
Figure 45.General wiring diagram of the basic relay board (OPT-A2)
6.2.2.1 Control cables
The control cables shall be at least 0.5 mm
maximumterminal wire size is 2.5 mm
6.2.2.2 Galvanic isolation barriers
The control connections are isolated from the mains potential and the GND terminals are
permanently connected to ground. See Figure 46.
The digital inputs are galvanically isolated from the I/O ground. The relay outputs are additionally
double-isolated from each other at 300 VAC (EN-50178).
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
6
Basic relay board
OPT-A2
NX6_6.fh8
2
screened multicore cables, see Table 30. The
2
for the relay terminals and 1.5 mm
ELECTRICAL CABLING AND CONNECTIONS
21
RO1/1
22
1/2
23 RO1/3
ac/dc
Switching:
24
RO2/1
<8A/24Vdc,
25
2/2
<0.4A/125Vdc,
26 RO2/3
<2kVA/250Vac
Continuously:
<2Arms
11355_uk
2
for other terminals.