Important notes
Protection of persons
5.1
5.1.1

5.1−2
EDSVF9383V EN 7.1−04/2012
The terminals X1 and X5 have a double (reinforced) insulation in accordance
with EN 61800−5−1. The protection against accidental contact is ensured
without any further measures.
 Danger!
Æ’ Terminals X3, X4, X6, X8, X9, X10, X11 have a single basic
insulation (single isolating distance).
Æ’ Protection against accidental contact in case of a defective
isolating distance is only guaranteed through external
measures, e.g. double insulation.
Æ’ If an external DC 24 V voltage source is used, the insulation
level of the controller depends on the insulation level of the
voltage source.
59
39
A1…A4
E1…E5, ST1, ST2
28
L1
24 VDC
N
X1
X5
X3
W
V
U
PE
BR1
BR2
-U
G
PE
+U
G
L3
L2
L1
101
102
103
104
X4
X6 X8 X9 X10
X11
9300VEC009
Fig. 5.1−1 Electrical isolation between power terminals, control terminals and housing
Double (reinforced) insulation
Basic insulation
Only replace defective fuses in the deenergised state to the type specified.
Only carry out the safety−related disconnection of the controller from the
mains via a contactor on the input side or a manually operated toggle switch.
Electrical isolation
Replacing defective fuses
Disconnecting the controller
from the mains
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