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Relay test
The plug C2 (see the figure on page 18) is intended to test up to 2 external relay NC
contacts.
If no external relay is triggered or monitored, the jumpers between pins R1/R2 and
pins R3/R4 must remain in place.
If an external relay is to be monitored, pin R1 must be connected to pin R2 via a NC
contact of the relay to be monitored.
If a second relay is monitored, pins R3/R4 can be handled in the same way. If there
is only one tested NC contact, these pins must remain linked.
Before switching the output stages it is checked whether these contacts are closed.
If the contacts are open, a fault is assumed and the output stages are not enabled.
Before any switching of the output relays the external relay contacts are tested.
Relay outputs
The evaluation unit G15005 has 3 NO (safety-related, closing these contacts signals
enabling) and 2 NC outputs (NOT safety-related). The non safety-related NC outputs
do not switch simultaneously.
The connections are as follows:
Plug C4 (see the figure on page 18):
Plug C5 (see the figure on page 18):
Plug C6 (see the figure on page 18):
Connection of the fail-safe switches
6 fail-safe switches/chains can be connected to the plugs A1 to A6 on the evaluation
unit (see the figure on page 18).
The connection pins of the evaluation units have to be connected to the connections
L-, A, TE and L+ of the fail-safe switches.
If all possible fail-safe switches have not been connected, the pins A and TE remain
linked on the unused connections.
Per location only 1 fail-safe switch can be operated using the internal supply.
(NO 3)
1
2
and
(NC 1 and 2)
7
8
5
6
and
(NO 1 and 2)
9
10
11
12
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