PNOZ e1vp
Operating Manual PNOZ e1vp
21236-EN-06
9
Function description
When supply voltage is applied and the set operating mode is detected (initialisation
phase), the "POWER" LED is lit. The unit is ready for operation when the feedback loops
are closed.
} Input circuit is closed (e.g. E-STOP pushbutton not operated):
– There are high signals at safety outputs 14 and 24 and auxiliary output Y32.
– The LEDs "CH.1" and "CH.2" are lit.
} Input circuit is opened (e.g. E-STOP pushbutton operated):
– There are low signals at safety output 14 and auxiliary output Y32.
– The LED "CH.1" goes out.
– There is a low signal at safety output 24 once the set delay time has elapsed.
– LED "CH.2" goes out.
Safety output 14 can also be delayed (see Logic input S35 and S36 [ 17]).
NOTICE
There is a low signal at the delayed safety output, at the latest after the set
delay time + 40 ms + 10 % of the set value, even in the case of a compon-
ent failure.
Feedback loop
Before a safety output is switched on, a test is run to establish whether the contacts at
feedback loop inputs Y6 and Y7 are closed. If a contact is open, an error is detected and
LEDs CH.1 and CH.2 will flash alternately. It will not be possible to switch the unit back on
until the feedback loops are closed and the safety function has been reset.
The feedback loop contacts are also checked when the signal at the output changes from
high to low. After this signal change, the contacts at the feedback loop inputs must close
within 150 ms. If a contact is still open after 150 ms has elapsed, an error is detected and is
displayed as a flashing code 1,8 (see Faults – Interference [ 23]). It will not be possible
to switch the unit back on until the error has been rectified and the supply voltage has been
switched off and then on again.
AND/OR connection
The PNOZ e1vp has two logic inputs S35 (OR) and S36 (AND) for logic connections
between several units.
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