Pilz PNKL Data Sheet

Safe Monitoring Relays

Press Overrun

PNKL

Technical Details PNKL

Electrical Data

Supply Voltage AC: 24, 110, 120, 230 V

Tolerance 85 ... 110 %
Power Consumption Approx. 4 W/7 VA
Switching Capability in accordance with
EN 60947-4-1, 10/91 AC1: 240 V/4 A/1000 VA

EN 60947-5-1, 10/91 AC15: 230 V/4 A; DC13: 24 V/3 A
(DC13: 6 cycles/min.)
Output Contacts 3 safety contacts (2 N/O + 1 N/C)

Contact Fuse Protection 6 A quick or 4 A slow
(EN 60947-5-1, 10/91)

Press overrun relay in accordance
with VDE 0113-1, 11/98, EN 60204-1,
12/97, EN 1088, 12/95, EN 693,
12/97 and IEC 204-1, 11/98.

Features

● Each AC unit can also be
operated with 24 VDC

● LEDs for status display

Max. Supply Interruption before 35 ms
De-energisation

Times

Delay-on Energisation Max. 50 ms
Delay-on De-energisation Max. 50 ms
Fuse Trip Delay
Recovery Time 1 s

Mechanical Data

Maximum Cross Section of 2 x 1.5 mm
External Conductors Single-core or multi-core with

Dimensions (H x W x D) 87 x 90 x 121 mm
Weight 700 g

DC: 24 V

DC1: 24 V/4 A/100 W

1 auxiliary contact (N/O)

AC: approx. 350 ms, DC: approx. 150 ms

2

crimp connectors

Description

● 90 mm, P-93 housing, DIN-Rail
mounting

● Positive-guided relay outputs:
– 3 safety contacts: 1 N/C for

“down stroke”, 1 N/O for “up
stroke” and 1 N/C for
“hydraulic pump on”

– 1 auxiliary contact (N/O) for

“overrun distance correct”

● Connection for
Test limit switch, top dead centre
switch and relay contact “down
stoke”.

Function Description

The PNKL provides automatic press
overrun monitoring on linear driven
hydraulic, pneumatic and fly wheel
presses. The overrun control is
carried out in conjunction with a test
limit switch automatically and
positively. This occurs every time the
control voltage is switched on.

5

Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-090-2006-07
Telefon [phone], Telefax [phone], E-Mail: [e-mail]

5-1

Safe Monitoring Relays

Press Overrun

PNKL

Connection Example

L1

5

Off

S1

TLS

B1

K5

B2

TDC

Reset

N

PE

S3

2

K4

4

3A1

K3

17

6

S2

S4

K5

P2HZ5: Two-hand relay in accordance

with EN 574
S1: Off
S2: OT: ram at top dead centre
S3: PE: test limit switch, the length

of the cam corresponds to the

maximum permitted overrun

laid down by the manufacturer
S4: Hydraulic pump on
S5: Up

Down

P2HZ 5

0123

S6

K8

S5

12 9 16 57151

PNKL

A2 14

11

K6

8

K2

K1

K4

10

13

H1 K8

K7

S6: 0: off, 1: set

2, 3: other operating modes
K5: Contactor for hydraulic pump
K6: Press slide up
K7: 1st channel ram up
K8: 2nd channel ram down
H1: LED, overrun distance correct

0123

Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-090-2006-07
Telefon [phone], Telefax [phone], E-Mail: [e-mail]

Safe Monitoring Relays

Press Overrun

PNKL

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
Continuous Duty 100 %

Environmental Data

EMC EN 50081-1, 01/92, EN 50082-2, 03/95
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

2

Housing: IP 40
Terminal Range: IP 20

The units were tested in accordance with the relevant standards current at
the time of development.

Order References

Type U

PNKL 24 V AC / 24 V DC 474 120
PNKL 110 V AC / 24 V DC 474 123
PNKL 120 V AC / 24 V DC 474 125
PNKL 230 V AC / 24 V DC 474 127

B

Order No.

5

Pilz GmbH & Co., Felix-Wankel-Straße 2, 73760 Ostfildern, Deutschland NSG-D-2-090-2006-07
Telefon [phone], Telefax [phone], E-Mail: [e-mail]

5-3