18
Inductive signal transmission system
6.2
Supply voltage
For the voltage supply,
either
mains voltage (230 V AC 50/60 Hz) or low
voltage (24 V AC/DC) may be used The supply line to the switching unit must
be protected with an appropriate fuse
Never apply both voltages simultaneously!
Connect supply voltage 230 V AC to terminals L1 N or 24 V AC/DC to terminals 24
V AC/DC
6.3
Connecting the stationary coil core
Connect the stationary coil core to terminals
Transmit 1 + 2
; no special attention is
required for polarity
6.4
Connecting the stationary safety contact edges
The stationary safety contact edge(s) on the leading pillar for the opening
movement is (are) connected to the Stationary Opening terminal pair If several
safety contact edges are being used, they must be connected in series and the end
edge must be terminated using an 82 kΩ resistor
The stationary safety contact edge(s) for the closing movement is (are) connected
accordingly to the Stationary Closing terminal pair
If one or both channels for the stationary safety contact edges are not used, the
supplied 8.2 kΩ resistors are to be connected to the respective channels
6.5
Connecting the control circuits
The control circuit to be monitored for the opening movement (stop-opening
movement) is to be connected to the
Stop Opening
terminal pair; for the closing
movement (stop closing movement), the appropriate control circuit is to be con-
nected to the
Stop Closing
terminal pair
The connection for the control circuits is permitted only for switching
low voltages
The control circuits are dependent on the rated current
to protect with an appropriate fuse or the rated current to the control
circuits must be limited by other measures to the maximum value
7
Connecting the safety contact edges
7.1
Connecting to the coil core SPK 54 (figure 1)
The travelling safety contact edges are connected to the
travelling coil core
For this purpose, the travelling safety contact edge
CLOSING
movement is connected to connection
C
of the
travelling coil core and the optional safety contact edge
OPENING
movement is connected to connection
O
.
If a channel is not used, it must be connected to
an 8,2 kΩ resistor
!
!
safety c
ontact edg
e
CLOSING
movemen
t
safety c
ontact edg
e
OPENING
movemen
t
O
C
Figure 1: Connection at the coil core
!
Summary of Contents for INDUS classic 74-312
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