Pilz P2HZ X2 Data Sheet
Two-hand control unit
Up to PL e of EN ISO 13849-1
P2HZ X2
Gertebild
][Bildunterschrift_Zweihand
Two-hand control unit for press controllers and safety circuits
Approvals
P2HZ X2
Unit features
Gertemerkmale
` Positive-guided relay outputs:
– 2 safety contacts (N/O), instanta-
neous
` Connection options for:
– 2 operator elements (buttons)
` LED indicator for:
– Switch status channel 1/2
– Supply voltage
Unit description
][Gertebeschreibung_Zweihand
The two-hand control relay meets the
requirements of EN 574 Type IIIC. It
forces the operator to keep his hands
outside the danger zone area during
the hazardous movement. The unit is
suitable for use on controllers for metalworking presses as a component for
simultaneous switching.
It can be used in applications with
` Mechanical presses (EN 692)
` Hydraulic presses (EN 693)
` Safety circuits in accordance with
EN 60204-1
Safety features
][Sicherheitseigenschaften_Zweihand
The two-hand control relay meets the
following safety requirements:
` The circuit is redundant with built-in
self-monitoring
` The safety function remains effec-
tive in the case of a component failure
` The circuit prevents a further press
stroke in the case of:
– Relay failure
– Contact welding
– Coil defect on a relay
– Open circuit
– Short circuit
Zulassungen
Block diagram
Blockschaltbild
A1 A2 S21
S11 S32 S33
~
Input
~
Power
Feed-
back
Y1 Y2
13 23
K1
K2
14 24
Pilz GmbH & Co. KG, 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-2-258-2010-09
Two-hand control unit
Up to PL e of EN ISO 13849-1
P2HZ X2
Function description
][Funktionen_Zweihand
` The two-hand control relay must be
activated by simultaneously pressing two buttons within 500 ms. If
Timing diagram
POWER
Button 1
Button 2
Feedback loop
Output safe
Key
` POWER: Supply voltage
` Button 1/Button 2: Input circuits
S11, S21, S32, S33
` Feedback loop: Feedback loop Y1-
Y2
one or both of the buttons are released, the unit interrupts the control command for the hazardous
movement.
][Zeitdiagramm_Zweihand_nur_sicher
t0 t1 t2 t3 t3 t1
t1
` Output safe: Safety outputs 13-14,
23-24
: Recovery time after power on
` t
0
` t1: Simultaneity, channel 1 and 2
` Reactivation: The output relays will
not re-energise until both operator
elements have been released and
then re-operated simultaneously.
` t
: Operating cycle ended through
2
button 1 or 2
: Y1-Y2 must be closed before
` t
3
before the button is operated (recovery time)
Shaded area: Status irrelevant
Wiring
][Verdrahtung_Si_unverz
Please note:
` Information given in the “Technical
details” must be followed.
` Outputs 13-14, 23-24 are safety
contacts.
` 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
R
= max. overall cable resist-
lmax
ance (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-2-258-2010-09Pilz GmbH & Co. KG, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
-2
Two-hand control unit
Up to PL e of EN ISO 13849-1
P2HZ X2
Preparing for operation
Betriebsbereitschaft her stellen
` Supply voltage
Supply voltage AC DC
A1
A2
L1
N
` Input circuit
Input circuit Single-channel Dual-channel
Two-hand button
with detection of shorts across contacts
` Feedback loop
S11
S32
S33
S21
S1
S2
Feedback loop
Contacts from external contactors
` Key
S1/S2 Two-hand button
Y1
Y2
13 (23)
14 (24)
K5
K6
K5
K6
L1
N
Pilz GmbH & Co. KG, 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-2-258-2010-09
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