Pilz PZE 9P Data Sheet
Expander modules
Instantaneous
PZE 9P
Contact expander module for increasing the number of available contacts
Approvals
PZE 9P
Unit features
` Positive-guided relay outputs:
– 8 safety contacts (N/O), instanta-
neous
– 1 auxiliary contact (N/C), instan-
taneous
` Safe separation of safety contacts
23-24 ... 83-84 from input circuits
K1-U2, K2-U2, Y3-Y4, feedback
loop Y1-Y2 and auxiliary contact
91-92.
` LED indicator for:
– Switch status channel 1/2
– Supply voltage
` Plug-in connection terminals (either
cage clamp terminal or screw terminal)
` See order reference for unit types
Unit description
The unit meets the requirements of EN
60204-1 and IEC 60204-1. The contact expander module is used to
increase the number of contacts
available on a base unit. Base units are
all
` Safety relays with feedback loop
` Programmable safety systems with
feedback loop
The category that can be achieved in
accordance with EN 954-1 depends
on the category of the base unit. The
contact expander module may not exceed this.
Safety features
The unit meets the following safety requirements:
` The contact expander module ex-
pands an existing circuit. As the
output relays are monitored via the
base unit's feedback loop, the safe-
ty functions on the existing circuit
are transferred to the contact ex-
pander module.
` The safety function remains effecti-
ve in the case of a component failu-
re.
` Earth fault in the feedback loop:
Detected, depending on the base
unit that is used.
` Earth fault in the input circuit:
The output relays de-energise and
the safety contacts open.
Block diagram
* Galvanic isolation in accordance with EN 60947-1, 6 kV (see unit features)
UB = 24 V AC/DC UB = 24 V AC/DC
A1 A2
~
=
Power
B1 B2 13 23 33
K1 U1 K2 U2 Y3 Y4
Y1
~
Input
=
Power
=
K1
K2
~
A1 A2
U
= 100 - 240 V AC/DC
B
Y2
14 24 34
43
53 63 73 83 91
44
54 64 74 84 92
*
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-170-11/04
Expander modules
Instantaneous
PZE 9P
Function description ` Single-channel operation: one in-
put circuit affects both output relays
` Dual-channel operation:
Timing diagram
POWER
Input
Output safe
Output aux.
Feedback
t1 t1t2 t2
Key
` Power: Supply voltage
` Input: Input circuits K1-U1, K2-U2,
Y3-Y4
` Output safe: Safety contacts 13-14,
23-24, 33-34, 43-44, 53-54, 63-64,
73-74, 83-84
` Output aux: Auxiliary contacts 91-
92
Wiring
– two redundant input circuits af-
fect one output relay
– Detection of shorts across con-
tacts is also possible
` Feedback: Feedback loop Y1-Y2
: Switch-on delay
` t
1
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24, 33-34, 43-
44, 53-54, 63-64, 73-74, 83-84 are
safety contacts, output 91-92 is an
auxiliary contact (e.g. for display).
` To prevent contact welding, a fuse
should be connected before the
output contacts (see technical details).
` Calculation of the max. cable runs
in the input circuit:
l
max
R
lmax
=
I
max
Rl / km
= max. overall cable resi-
R
lmax
stance (see technical details)
/ km = cable resistance/km
R
l
` Use copper wire that can withstand
60/75 °C.
` Sufficient fuse protection must be
provided on all output contacts with
capacitive and inductive loads.
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
NSG-D-2-170-11/04Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
Expander modules
Instantaneous
PZE 9P
Preparing for operation
` Supply voltage
Supply voltage AC/DC AC/DC
Order no.: 777148, 787148
U
= 100 - 240 V
B
A1
A2
L1/L+
N/L-
Order no. 777148, 787148
UB = 24 V
B1
L1/L+
B2 PE
Order no. 777140, 787140
UB = 24 V
` Input circuit
Input circuit Single-channel Dual-channel
without detection of shorts across
contacts
K1
U1
K2
U2
Y3
Y4
PZE
with detection of shorts across contacts
B2
A2
A1
K1
U1
K2
U2
Y3
Y4
K1
U1
K2
U2
Y3
Y4
N/L-
L1/L+
N/L-
PZE
PZE
` Feedback loop
Y1 and Y2 are feedback loop inputs on
the base unit
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
Y1
Y2
Y1
Y2
PZE
NSG-D-2-170-11/04
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