IFM G2001S - 8�3 K1;K2 Feedback Contacts; 8�4 Muting

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8.3 K1/K2 feedback contacts
External contactors can be integrated into the automatic or manual operation�
They must be connected to terminal 20 (K1/K2 feedback contact)�
For loads of voltages and currents higher than those indicated in the following
table external contactors or auxiliary relays should be used in accordance with the
loads to be switched� Safety elements with positively guided contacts are to be
used�
Min� voltage ≥ 18 V DC
Min� current ≥ 20 mA
Max� voltage ≤ 250 V AC
Max� current ≤ 2 A
If no external contactors are used, the terminals 20 (K1/K2 feedback contact) and
21 (auxiliary output) must be interconnected�
The auxiliary contacts of K1 and K2 must be able to switch a current of 20 mA and
a voltage of 24 V DC�
Suitable interference suppressors on the coil end of K1 and K2 prolong the life of
the internal relays�
8.4 Muting
Muting is the temporary suspension of the protective function of safety light cur-
tains / light grids to transport objects through a hazardous area as planned� The
muting sensors detect objects before they enter the protected area and enable a
distinction between man and material after correct optical alignment�
Check if this function is compatible with the risk analysis of your machine
and if additional measures have to be taken�
The following components are necessary for the muting function:
- G2001S safety relay
- safety light curtain / safety light grid
- 2 muting sensors
- muting lamp (0,5���5 W)