8
vacon • 62
INSTALLATION INSTRUCTIONS
Tel. +358 (0) 201 2121 • Fax +358 (0)201 212 205
8.2.1.1
Control cables
The control cables shall be at least 0.5 mm
2
screened multicore cables, see Table 12. The
maximum terminal wire size is 2.5 mm
2
for the relay terminals and 1.5 mm
2
for other terminals.
Find the tightening torques of the option board terminals in Table below.
8.2.1.2
Galvanic isolation barriers
The control connections are isolated from the mains potential and the GND terminals are
permanently connected to ground. See Figure 36.
The digital inputs are galvanically isolated from the I/O ground. The relay outputs are additionally
double-isolated from each other at 300VAC (EN-50178).
Figure 36. Galvanic isolation barriers
Table 20. Tightening torques of terminals
Terminal
screw
Tightening torque
Nm
lb-in.
Relay and thermistor terminals
(screw M3)
0.5
4.5
Other terminals
(screw M2.6)
0.2
1.8
L1 L2 L3
U V W
RO1/1
RO1/2
RO1/3
RO2/3
RO2/2
RO2/1
10Vref
GND
GND
+24V
AI1
AI2+
AI2 -
DIN1...
DIN3
CMA
DIN4...
DIN6
CMB
AO1+
AO2 -
DO1
TI1+
TI1-
Contro l I/O
ground
Digital input
group A
Digital input
group B
Analogue
output
Digital
output
Control
board
Control
panel
Gate drivers
Power
board
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