PZA_GB.pdf
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Safe Timer Relays
Delay-on Energisation
PZA
Technical Details
PZA
Electrical Data
Supply Voltage
AC: 24, 42, 110, 120, 230 V
DC: 24 V
Tolerance
85 ... 110 %
Residual Ripple DC
10 %
Power Consumption
Approx. 4.5 VA/3 W
Switching Capability in accordance
EN 60947-4-1, 02/01 AC1: 240 V/0.01 ... 6 A/1500 VA
DC1: 24 V/0.01 ... 6 A/150 W
EN 60947-5-1, 11/97 (DC13: 6 cycles/min.) AC15: 230 V/4 A; DC13: 24 V/3A
Output Contacts
1 safety contact (N/O),
2 auxiliary contacts (N/C)
Contact Fuse Protection
6 A quick or 4 A slow
(EN 60947-5-1, 08/00)
Times
Delay-on De-energisation
Delay-on energisation timer relay in
accordance with VDE 0113-1, 11/98,
EN 60204-1, 12/97, EN 1088, 12/97
and IEC 204-1, 11/98.
Approx. 40 ms
Recovery Time
80 ms
Time Ranges
PZA 3:
0,3/0,4/0,5/0,7/0,9/1,2/1,5/1,8/2,1/2,4/
2,7/3,0 s
Features
PZA 30:
3/4/5/7/9/12/15/18/21/24/27/30 s
PZA 300:
30/40/50/70/90/120/150/180/210/240/
270/300 s
Self-monitoring time circuits
●
Timed release of locked safety
devices
●
4
PZA 600:
60/80/100/140/180/240/300/360/420/
480/540/600 s
Setting Accuracy
Start of the range
PZA 3: -15/+50 ms; PZA 30: +/-0,15 s;
PZA 300: +/-1,5 s; PZA 600: +/-3 s
Approvals
End of the range
PZA 3: +/-60 ms; PZA 30: +/-0,6 s;
PZA 300: +/-6 s; PZA 600: +/-12 s
PZA
Time Accuracy
1 % voltage change
0.06 %
1 °C temperature change
0.06 %
●
Repetition Accuracy
±1 %
Mechanical Data
Maximum Cross Section of
●
1 x 2.5 mm
2
or 2 x 1.5 mm
2
External Conductors
Single-core or multi-core with
crimp connectors
●
Dimensions (H x W x D)
87 x 45 x 121 mm
Weight
AC: 350 g, DC: 260 g
Description
Increase in the number of
safety contacts available by
connecting expander modules.
●
●
45 mm, P-97 housing, DIN-Rail
mounting
●
Positive-guided relay outputs:
– 1 safety contact (N/O)
– 2 auxiliary contacts (N/C)
●
LEDs for power and out
●
12 time-delay options, set via a
rotary switch
Function Description
The PZA provides a delayed release
of a shotbolt, activated by applying
the operating voltage.
NSG-D-2-084-02/04
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Safe Timer Relays
Delay-on Energisation
PZA
Internal Wiring Diagram
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Connection Example
If the “Start” button is pressed while
the safety gate is closed, the PZA
de-energises. The safety gate can
not be opened. By pressing the
“Stop” button, the relay K1 de-
energises and the N/C contact K1
closes. After the set time period has
elapsed the safety contact of the
PZA closes. The safety gate switch
is released and the safety gate can
be opened by operating the switch
„Auf“ (open).
4
L1
F1
K1
A1 Y11 Y12
Y21 xx
13
23
33
41
A1
17
25
35
Y1
Y2
Y22
PZA
PNOZ 6
Y1
Y2 Y30 Y31 Y32 14
24
34
42
A2
18
26
36
A2
K1
Auf
Start
Stop
K1
N
NSG-D-2-084-02/04
!"!#$%&'()
*+,-.!//"-$.$*',-.!//"-$./""012+34+(
4-2
Safe Timer Relays
Delay-on Energisation
PZA
General Technical Data
Unless stated otherwise in the technical details for the specific unit
Electrical Data
Frequency Range AC
50 ... 60 Hz
Residual Ripple DC
160 %
Contact Material
AgSnO
2
Continuous Duty
100 %
Environmental Data
EMC
EN 50081-1, 01/92, EN 61000-6-2, 03/00
Vibration in accordance with
Frequency: 10 ... 55 Hz,
EN 60068-2-6, 04/95
Amplitude: 0.35 mm
Climatic Suitability
DIN IEC 60068-2-3, 12/86
Airgap Creepage
DIN VDE 0110 part 1, 04/97
Ambient Temperature
-10 ... +55 °C
Storage Temperature
-40 ... +85 °C
Mechanical Data
Torque Setting on Connection Terminals
0.6 Nm (screws)
Mounting Position
Any
Housing Material
Thermoplast Noryl SE 100
Protection
Mounting: IP 54
Housing: IP 40
Terminal Range: IP 20
The units were tested in accordance with the relevant standards current at
the time of development.
4
Order References
Type
t
U
B
Order No.
PZA
3 s
24 V DC
774 041
PZA
3 s
230 V AC
774 038
PZA
30 s
24 V DC
774 030
PZA
30 s
110 ... 120 V AC
774 035
PZA
30 s
230 V AC
774 040
PZA
300 s
24 V DC
774 029
PZA
300 s
110 ... 120 V AC
774 023
PZA
300 s
230 V AC
774 026
PZA
600 s
24 V DC
774 028
NSG-D-2-084-02/04
!"!#$%&'()
*+,-.!//"-$.$*',-.!//"-$./""012+34+(
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