33
6.4.2 Enable input
Using the enable input (terminal 8) the start-up delay can be started
�
► To do so, connect the in24 V DC voltage (terminal 5) or an external
+24 V DC voltage to terminal 8 via a closing contact
�
► If an external voltage is used, connect the negative reference point of this
voltage to terminal 3 or 4 of the device
�
When the contact is open (+24 V DC no longer applied) and the set start-up
delay has elapsed monitoring starts
�
A +24 V DC continuous signal results in a permanent deactivation of the
monitoring
�
The same state as during the start-up delay is indicated
�
6.5 Outputs
6.5.1 Relay output
► To prevent excessive wear and to comply with the EMC standards, interference
suppression of the contacts is required for switching inductive loads
�
WARNING
If the device is operated on an AC supply (terminals 21/22 and 23/24) this
must use the same supply cable (phase) as the voltage supply to switch an AC
voltage via the relay output
�
If the relay output is used to switch very small currents (e
�
g
�
PLC input),
considerable contact resistance can arise
�
For this purpose use the transi-
stor output
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6.5.2 Transistor output
► The transistor output needs an ex24 V DC supply on terminal 13
�
Protect this +24 V DC supply cable externally with a 315 mA time-lag fuse (5 x
20 mm or similar)
�
► Connect the reference point (GND) of the external power supply with terminal
15 or 3/4 of the device
�
Otherwise no switching operation is possible
�
► The SELV criteria (safety extra-low voltage) must be met for the DC supply of
the transistor outputs
�
UK
Summary of Contents for AR003
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