Pilz PZE X4 24VDC 4n/o - Manual (Page 8)

PZE X4
Operating Manual PZE X4
1003199­EN­08 8
Preparing for operation
Supply voltage AC DC
A1
A2 PZE
24 V DC
0 V
Input circuit Single­channel Dual­channel
Base unit:
Safety relay PNOZ X
Driven via safety contacts
A1
A2 PZE
24 V DC
0 V
Base unit:
Safety relay PNOZmulti
Driven via semiconductor outputs
(24 VDC)
A1
PZE A2 0 V
O1
L-
Feedback loop Base unit: Safety relay PNOZ X Base unit: Safety relay PNOZmulti
Y1, Y2 and Input are inputs on
the base unit; they evaluate the
feedback loop
Operation
Status indicators
CH.1
Safety contacts of channel 1 are closed.
CH.2
Safety contacts of channel 2 are closed.
Faults – Interference
By closing or interrupting the input circuit you can check whether the unit switches on or off
correctly.
For safety reasons, the unit cannot be started if the following faults are present:
} Contact malfunction: As the contact block is connected to a base unit,
reactivation will not be possible if the contacts have welded after the input circuit has
opened.