1
vacon • 10
Safety
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
1.6
Insulation system
A distinction has to be made for the following three groups of terminals, according the insulation
system of VACON
®
100 X:
•
Mains and motor connections (L1, L2, L3, U, V, W)
•
Relays (R01, R02)
(*)
•
Thermistor-input
•
Control terminals (I/Os, RS485, Ethernet, STO)
The Control terminals (I/Os, RS485, Ethernet, STO) are isolated from the Mains (the insulation is re-
inforced, according to IEC 61800-5-1) and
the GND terminals are referred to PE
.
This is important when you need to connect other circuits to the drive and test the complete assem-
bly. Should you have any doubt or question, please contact your local VACON
®
distributor.
Figure 4. Insulation system.
Please, consider carefully the insulation system depicted in Figure 4 before connect-
ing any circuit to the unit.
(*)
The relays may be used also with DVC A circuits. This is possible only if both relays
are used with DVC A circuit:
to mix Mains and DVC A is not allowed.
POWER UNIT
L1
L2
L3
U
V
W
R01 __
R02 __
DC-
DC+/R+
R-
10Vref __
Analog Inputs __
Digital Inputs__
Digital Outputs__
24V __
Ethernet __
RS485 __
STO __
___Thermistor
Keypad
CONTROL UNIT
Reinforced
Mains
Mains
DVC A
DVC A or
Mains
(*)
