Connection Terminals; Connecting The Device; Prerequisites; Connecting The Stationar - ASO Safety Solutions ISK 74-312 Manuel D'utilisation

If no error is present, then LED Power shows the function control (briefl�� off). During the output of an error
message, the number of output pulses indicates the error:
Pulse
1
2
3
4
5

6.3 Connection terminals

STOP Opening terminals
STOP Closing terminals
STATIONARY Opening terminals
STATIONARY Closing terminals
Transmit 1, 2 terminals
24 V AC/DC terminals
L1 N terminals

7. Connecting the device

7.1 Prerequisites

• The suppl�� voltage used for the ISK 74-312 must compl�� with the requirements for safet�� low voltage (SELV).
• Cables installed outdoors or outside of the switching cabinet must be protected appropriatel��.
• The protection class specified for this device is onl�� ensured if the suppl�� lines have been properl�� clamped
to the screw connections.
Error message
Voltage suppl�� outside of the valid value range
ISK transmission error
Output control Open fault��
Output control Close fault��
Data transmission with microcontroller fault��
rela�� output for controller - stop opening
rela�� output for controller - stop closing
safet�� contact edges - leading pillar opening
safet�� contact edges - leading pillar closing
stationar�� coil core
24 V AC/DC suppl�� voltage
230 V suppl�� voltage
7.2 Supply voltage
For the voltage suppl��, either mains voltage (230 V AC 50/60 Hz) or low
voltage (24 V AC/DC) ma�� be used. The suppl�� line to the switching unit must
be protected with an appropriate fuse.
Never apply both voltages simultaneously!
The 230 V suppl�� voltage must be connected to terminals L1 and N. When operated
with 24 V, the device is to be connected to terminals 24 V AC/DC .
7.3 Connecting the stationary coil core
Connect the stationar�� coil core to terminals Transmit 1 + 2; no special attention is
required for polarit��.
The cable for the coil core is connected using the supplied crimp connectors or b��
directl�� soldering the wire to the connectors.
7.4 Connecting the stationary contact edges
The stationar�� safet�� contact edge(s) (SCE) on the leading pillar for the opening
movement is (are) connected to the Stationary Opening terminal pair. If several
SCEs are being used, the�� must be connected in series and the end edge must be
terminated using an 8.2 kΩ resistor.
The stationar�� SCE(s) for the closing movement is (are) connected accordingl�� to the
Stationary Closing terminal pair .
If one or both channels for the stationary SCE are not used, the supplied 8.2 kΩ
resistors are to be connected to the respective channels.
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