IFM Electronic ZB0052 Manuale utente
Operating instructions
Safety Rope Emergency Stop Switches
ZB0052 / ZB0053
ZB0072 / ZB0073
7390878 / 04 06 / 2020
UK
2
Contents
1 Safety instructions ..................................................................................................... 3
2 Installation / set-up .................................................................................................... 4
2.1 Applications..........................................................................................................4
2.2 Function and electrical connection .......................................................................4
3 Operating and display elements ................................................................................ 5
4 Installation ................................................................................................................. 6
5 Function ..................................................................................................................... 8
5.1 Maintenance requirement .................................................................................... 8
6 Electrical connection .................................................................................................. 9
7 Safety characteristics .............................................................................................. 12
8 Technical data ......................................................................................................... 13
9 Scale drawing .......................................................................................................... 14
10 Accessories .......................................................................................................... 15
11 Standards .............................................................................................................. 16
12 Approvals / certificates........................................................................................... 17
3
1 Safety instructions
Follow the operating instructions.
Non-observance of the instructions, operation which is not in accordance with use as
prescribed below, wrong installation or incorrect handling can affect the safety of
operators and machinery.
For installation and prescribed use of the product the notes in the operating
instructions must be carefully observed and the applicable technical standards
relevant for the application have to be considered.
Failure to observe instructions or standards, especially any tampering with and/or
modification to the product, will void any manufacturer’s liability.
The unit must be installed, connected and put into operation by a qualified electrician
trained in safety technology.
After installation the system must be subjected to a complete function check.
Disconnect the device externally before handling it. Also disconnect any independently
supplied relay load circuits.
For installation the requirements according to EN 60204-1 must be observed.
In case of malfunction of the unit please contact the manufacturer. Tampering with the
device can seriously affect the safety of operators and machinery. It is not permitted
and leads to the exclusion of any liability and warranty claims.
4
2 Installation / set-up
2.1 Applications
The safety rope emergency stop switch is used to provide safety-related switching
statuses where large danger areas have to be secured and housings or covers are not
possible.
Typical applications are conveyor systems and rotating machines and large danger
areas.
The safety rope emergency stop switch meets the requirements of EN ISO 13850, IEC
/ EN 60947-5-1 and IEC / EN 60947-5-5.
The safety rope emergency stop switch can be used in applications up to performance
level e according to EN ISO 13849-1.
NOTE
2.2 Function and electrical connection
Make careful note of all information in the operating instructions of the safety rope
emergency stop switch. This document provides all required instructions concerning
installation, mounting, operation and maintenance.
Important note
The products described here are designed to be components of a safety-
oriented machine or control system. A complete safety-related system normally
includes sensors, evaluation units, signaling components and concepts for safe
switch-off. It is the responsibility of each manufacturer of a machine or
installation to ensure a correct functioning of the whole system.
The manufacturer of the safety rope emergency stop switch, his subsidiaries
and affiliates are not in a position to ensure all of the characteristics of a
machine or product which was not designed by him.
The manufacturer accepts no liability for any recommendation that may be
implied or stated here. The warranty contained in the contract of sale is the sole
warranty. Any statements contained herein do not create new warranties or
modify existing ones.
Compliance with the description of the operating instructions of the safety rope
emergency stop switch is mandatory!
5
3 Operating and display elements
1: red E-stop
2: blue reset button
3: dual LED
4: rope tension indicator
Rope tension indicator: Indicator shown with steel rope properly adjusted
6
4 Installation
Installation must be carried out by authorized personnel. The safety rope emergency
stop switch is mounted using four M5 screws. The tightening torque for the fixing
screws is 4 Nm The tightening torque for the cover screws, the cable glands and cable
seals are 1.5 Nm to ensure protection rating IP 67. Only use seals of the correct size
for the cable entry and the external diameter of the cable.
The maximum vertical pull force on the rope pull is 130N until activation, the max.
travel 300mm. Enough space has to be provided so that the required actuation travel
can be reached.
Eye bolts have to be installed between the switches across the whole length of the
rope at a distance of min. 2.5m to max. 3m. If this cannot be achieved due to conveyor
layout fixings, then a reduction is possible (e.g. every 2m) providing that appropriate
installation checks are made at each end and the middle of the rope system. These
checks must ensure that the system operates when the rope is pulled in any direction
and the parameters to trip the system are satisfied.
The first eyebolt must be mounted at a distance of max. 500mm of the switch eye bolt
or the tension spring (if it is used). It is important to note that the first 500mm cannot
be used as part of the active protected area (E-stop triggering).
Installation of the components
7
The tension of the rope is obtained by rope tensioner systems. After the installation
the tension must be set to the middle position which is indicated by green arrows in
the transparent window of the individual switches. Verify the function of all switches
and the control circuits by pulling on various spots on the rope in the active protected
area and then resetting the individual switches by pressing the blue reset button.
Ensure each time that the switches clip into place and have to be reset manually by
pressing the blue button. If necessary, increase the rope tension until the tests along
the active length of the area are satisfactory.
The switches are equipped with a red, mushroom-shaped E-stop button. Check the
individual emergency stop switches and reset them to ensure proper functioning of the
control circuits.
The typical operating conditions for a successful operation of the safety rope
emergency stop system are:
max. 75N pull force and max. 150mm bending of the rope between the eye bolts for
rope support.
Rope pull systems with single direction safety rope emergency stop switches are
influenced by fluctuations of the ambient temperature!
To ensure proper function of the rope pull system it is mandatory to take into account
the dependence on the temperature when fixing the rope length and distance of the
eye bolts (every 3m).
+ 25°C
+ 22°C
+ 20°C
+ 15°C
+ 10°C
+ 7,5°C
+ 5°C
+ 3°C
Installation Temperature [°C]
- 3°C
- 5°C
- 7,5°C
- 10°C
- 15°C
- 20°C
- 22°C
- 25°C
Rope Length 15m 30m 50m 60m 75m 100m 126m
Installation Temperature in [°C] ± X [°C] = max. allowed rope length in [m]
Not OK
OK
8
5 Function
Pulling the tensioned rope, rope breakage or impact on the E-stop cause activation of
the switching function of the safety rope emergency stop switch.
There is a window on the switch via which the correct rope tension can be monitored
during setting and maintenance. Setting, troubleshooting and maintenance are made
much easier.
After activation of the E-stop function a latching mechanism maintains the E-stop
command until it is unlocked manually by pressing the blue reset button. Before
resetting the E-stop signal the cause of the activation has to be determined. Reset is
only possible with correct rope tension (position indication in middle position).
The max. rope length also depends on the change of the ambient temperature.
Function of the safety rope emergency stop switch
5.1 Maintenance requirement
Monthly:
Check proper functioning of the system at various spots along the rope length. Check
the setting of the nominal rope tension and re-adjust it, if necessary.
Every six months:
Separate the voltage supply and remove the cover. Make sure that the screws are
tight and check them for signs of penetrated moisture.
Damaged or faulty devices are to be replaced! Repair is not permissible.
9
6 Electrical connection
Wiring is only possible if the device is disconnected from power.
Contact arrangement
0 mm 3.5 mm 14.5 mm 17.0 mm
4 NC + 2 NO Rope slack Tension ran
g
e Rope pulled
11/12
21/22
33/34
41/42
51/52
63/64
contact open contact closed
Contact travels safety rope emergency stop switch
24 V DC LED:
+ 24 V DC on terminal 1 -> LED display flashing red
+ 24 V DC on terminal 3 -> LED display permanently green
10
Installation sample:
Programming sample:
Data bits:
Data bit D3 D2 D1 D0
In/Out SI-2 SI-2 SI-1 SI-1/O-1
Activated input channel Bit sequence D3-D0
SI-1 XX00
SI-2 00XX
SI-1 and SI-2 0000
none XXXX
Activated alarm outputs Bit sequence D3-D0
O-1 XXX1
X= random
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