WITTUR safety in motion ESG-25U User manual

© Copyright WITTUR 2016
www.wittur.com
ESG-25U
No part of this publication may be reproduced or translated, even in part, without prior written permission
from WITTUR. Subject to change without notice!
Progressive Type Safety Gear
OPERATING INSTRUCTION
Code PM.7.005160.EN
Version -
Date 30.08.2019
*pM.7.005160.en$111*
Original Instruction
Product manufacturer reference can be found on
the product type label. For any support or further
questions please contact your trading ofce.
WITTUR
1
2
3
4
5
6
7
8
1
2
+
0,50 0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Content Page
Sheet PM.7.005160.EN.02
Version -
Date 30.08.2019
Approved WAT/KKR
1. General information prior to installation
1.1 Description and functions........................................................................................................ 4
1.1.1 Safety gear activation.............................................................................................................. 4
1.1.2 Safety gear reset..................................................................................................................... 4
1.2 Operating range....................................................................................................................... 5
1.3 Liability and guarantee ............................................................................................................ 6
1.4 Safety precautions .................................................................................................................. 6
1.5 Preparation ............................................................................................................................. 7
1.6 Advices for the work on safety components.............................................................................. 7
1.7 Content of supply.................................................................................................................... 8
2. Name plate, designation, identification
3. Mechanical installation and adjustment
3.1 General................................................................................................................................. 10
3.2 Fastening of the safety gear................................................................................................... 10
3.3 Movement of the safety gear.................................................................................................. 12
3.4 Alignment of the safety gear.................................................................................................. 12
3.5 Safety gear adjustment.......................................................................................................... 13
3.6 Safety switch adjustment....................................................................................................... 13
4. Electrical installation and adjustment
4.1 General................................................................................................................................. 14
4.2 Safety gear power supply....................................................................................................... 14
4.3 Circuit diagram...................................................................................................................... 14
4.4 Wiring................................................................................................................................... 15
4.4.1 Electrical synchronization...................................................................................................... 15
4.5 Speed control unit ................................................................................................................. 15
4.6 Safety switch ........................................................................................................................ 15
4.7 Safety gear magnet ............................................................................................................... 16
4.7.1 Emergency rescue switch ...................................................................................................... 16
5. Function testing
5.1 Static functions test .............................................................................................................. 18
5.2 Safety switch test.................................................................................................................. 18
5.3 Electrical synchronization test ............................................................................................... 19
5.4 Dynamic function test............................................................................................................ 19
5.4.1 Gripping tests downwards for safety gear............................................................................... 19
5.4.2 Checking of components after gripping tests.......................................................................... 20
5.4.3 Visual checks after a safety gear tests ................................................................................... 20
5.5 Braking mark......................................................................................................................... 21
5.5.1 Measuring of braking mark .................................................................................................... 21

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.03
Version -
Date 30.08.2019
Approved WAT/KKR
5.5.2 Check of gripping distance “s” ............................................................................................... 21
6. Emergency rescue
6.1 Emergency rescue in case of power failure ............................................................................. 22
6.2 Emergency rescue in case of engaged safety.......................................................................... 22
6.3 Emergency rescue in case of magnet failure ........................................................................... 22
6.4 Operation of ESG in elevators with stops with restricted accessibility ...................................... 23
6.4.1 General................................................................................................................................. 23
6.4.2 Normal operation .................................................................................................................. 23
6.4.3 Maintenance operation.......................................................................................................... 23
7. Maintenance, inspection and repair
7.1 Maintenance and inspection .................................................................................................. 24
7.1.1 General................................................................................................................................. 25
7.1.2 Maintenance and inspection check list................................................................................... 25
7.1.3 Cleaning of guide rails........................................................................................................... 25
7.2 Periodical tests ..................................................................................................................... 25
7.3 Operational lifetime of the safety gears .................................................................................. 26
7.4 Carrying out repairs............................................................................................................... 26
7.5 Spare parts table................................................................................................................... 27
7.6 Disposal of waste.................................................................................................................. 27
8. Revision table
ANNEX A
ANNEX B

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.04
Version -
Date 30.08.2019
Approved WAT/KKR
1. General information prior to installation
1.1 Description and functions
ESG-25U is an unidirectional progressive type safety
gear with mechanical and electrical components.
Mechanical components are consisting of a
combination of disk springs, braking elements and
trigger mechanism with movable roller. The safety gear
is activated by a compression spring. The electrical
components (magnets) are used to keep the safety gear
in initial position. In normal run operation the magnets
are powered to keep the activation spring compressed.
The main function of the safety gear is to safely stop
the elevator car in down-direction (acc. EN 81-20/50)
if the car speed exceeds predened nominal speed
irrespective what the reason for the increase in speed
may be. The device is adjusted (according to load and rail
conditions) and sealed in the factory. Later adjustments
will not be necessary and are in any case prohibited for
safety reasons. For installation always a pair of safety
gears is used.
1.1.1 Safety gear activation
If the car speed exceeds predened nominal speed
the activation of the safety gear is carried out by an
external speed control unit (see chapter 4.5), which is
cutting the power supply on magnets. This causes the
preloaded activation springs to expand and leads to
an engagement of the rollers. The elevator car will be
brought to a standstill holding tight at guide rails.
The speed control unit has to be a CE certied device(SIL
3 according EN 81-20 PESSRAL) or an alternative device
with the same high(or higher) security level. In case
of an alternative device, total safety system has to be
assessed.
1.1.2 Safety gear reset
To release the engaged safety gear, at rst emergency
rescue switch has to be switched on and power has to be
supplied to the magnets (reset speed control unit). The
elevator car has to be moved out of gripping in upward
direction with powered magnet. This process resets the
trigger mechanism in its initial position.
After switching off emergency rescue the reset process
is completed.
If safety gear is activated but not engaged (e.g.
power loss at standstill) an additional step has
to be carried out to reset the safety.
After emergency rescue switch activation and speed
control unit reset, the car has to be moved down with
recall drive until it is stopped by the safeties (rollers
engaged). In the following step the car is moved out of
gripping like mentioned above.
For elevators with safety gear mounted on the top of
the frame it is recommended to activate and program
parking position for an accessible landing. It has to
be ensured, that car roof is accessible in this parking
position.
1. Brake lining
2. Safety gear block
3. Seal (sealing wax)
4. Adjustment screw
5. Disk spring assembly
6. Roller
7. Trigger mechanism
8. Magnet unit
WITTUR
1
2
3
4
5
6
7
8
1
2
+ 0,50
0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.05
Version -
Date 30.08.2019
Approved WAT/KKR
1.2 Operating range
The operating range of safety gear is dened as follows:
Safety gear ESG-25U
guide rail condition machined/
dry
machined/
oiled
width of guide rail head [k] 9 / 10 / 15,88 / 16 mm
nominal speed [v] 2 m/s
tripping speed for overspeed governor(TS) vtripping, EN 81-20 2,63 m/s 1
nominal mass to be gripped(down direction) Fmin 500 kg 500 kg
Fmax 2500 kg 2100 kg
temperature during operation 0 ... +50°C 2
temperature during storage -25 ... +70°C
maximum air humidity <95% rH (not condensing)
supply voltage 24 / 12 / 6 V DC
supply power 3,5 W
protection class mechanics IP2X
protection class electrics IP54
applicable for EN 81-20/50: Safety gear
1Max. tripping speed of the overspeed governor for safety gear acc. EN 81-20
(tripping speed = speed control unit - safety relais power-cutoff) - TS=2,63m/s
2Care must be taken that there is no formation of ice on the braking elements during normal run! Nother
on the guide rails nor on the safety gear.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.06
Version -
Date 30.08.2019
Approved WAT/KKR
1.3 Liability and guarantee
This instruction handbook is written for people who are
familiar with elevator’s maintenance and installation.
Sufcient knowledge of elevators is essential.
WITTUR does not take responsibility for damage caused
by improper handling, or for damage caused as a result
of actions other than those stated in these operating
instructions.
The WITTUR guarantee may be voided if parts other
than those described in these instructions are installed.
Unless stated otherwise, the following is not permissible
due to technical safety reasons:
• The use of components other than those installed
• Carrying out modications, of any kind on the safety
gear
• Installing two different safety gears with different se-
rial numbers together
• Destruction of the seal
If the seal is shacked, the complete set of safety
gears has to be replaced!
• Combining different component types
• Installing progressive safety gears intended for other
employment than that stipulated
• Carrying out faulty or improper maintenance or in-
spection checks
• Using unsuitable accessories, spare parts or operat-
ing material which has neither been released by the
WITTUR Company nor consists of original WITTUR
spare parts
1.4 Safety precautions
Installers and maintenance personnel are fundamentally
responsible for their safety while working. The
monitoring and following of all valid safety rules and
legal conditions is required in order to prevent personal
injury and damage to materials during installation,
maintenance and repair work. This refers especially to
the corresponding accident prevention rules.
Important safety advice and danger warnings are
emphasized with the following symbols:
General danger warning
High danger risk warning (i.e. crushing edge, cut-
ting edge etc.).
Risk of damage on machinery parts (i.e. due to
incorrect installation, ect.).
Important information sign
These operating instructions belong with the whole
installation and must be kept in a safe place all time (i.e.
machine room).
The proper assembly and installation of WITTUR safety
gears requires correspondingly well trained tting
engineers. The responsibility of training lies with the
company appointed to carry out the work.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.07
Version -
Date 30.08.2019
Approved WAT/KKR
Before starting installation work:
Only properly trained personnel may carry out work, or
be allowed access to the installation site.
-Attach safety devices to guard against falling
(platform or harnesses)
-Cover any oor openings
-Secure installation tools or objects against
accidental falling
-Lift shaft openings should be cordoned off and
suitable warning signs should be erected when
working in shaft openings
-Work involving electrical equipment should only
be carried out by an electrical engineer or qualied
personnel.
1.5 Preparation
Before starting the assembly or installation work it is
in your own interest to clarify the constructional and
spatial conditions as well as where (workshop or on
site), when and which installation operations can or
must be carried out. It is therefore recommended to take
all given circumstances into account and to plan various
operational sequences in advance, rather than carrying
them out prematurely and in an unconsidered manner.
On the receipt of the delivery, the goods or components
should be checked for correctness and completeness
with the order sheet.
The following should also be checked:
-the factory and the order number must correspond
-the details on the name plate must correspond to
those on the order
-the elevator speed
-the width and the type of guide rail used
-the total load (mass to be gripped)
1.6 Advices for the work on safety components
Safety gears are classied as safety components. The
most important for this product is take into account all
standards and guidelines described in this section as
well as other information given in this operating manual.
These instructions, and especially the section on
safety precautions, should be read and fully un-
derstood before work begins.
Safety devices require special attention. Their proper
functioning is essential for safe operation of the system.
Safety devices which can only be adjusted after
installation must take place immediately after
installation.
If safety devices are already factory preset, the function
of those must be checked and tested immediately.
If necessary to disassemble a safety device during
servicing or repair, those are to be reassembled and
checked with the required tests and returned back as
the work is carried out.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.08
Version -
Date 30.08.2019
Approved WAT/KKR
1.7 Content of supply
After delivery, the safety gear has to be checked for
damage and completeness. The content of supply
covers:
-Operating instructions manual
-One left handed and one right handed safety gear
(pre-adjusted and sealed at the factory)
-Fixing material (optional)
(2 sets per safety gear pair)
-Safety switch (optional)
(2 sets per safety gear pair)
-4 name plates, 4 CE-labels
© Copyright WITTUR 2016
www.wittur.com
ESG-25U
No part of this publication may be reproduced or translated, even in part, without prior written permission
from WITTUR. Subject to change without notice!
Progressive Type Safety Gear
OPERATING INSTRUCTION
Code PM.ESG-25U.EN
Version -
Date 30.08.2019
*pM.7.004210.en$111*
Original Instruction
Product manufacturer reference can be found on
the product type label. For any support or further
questions please contact your trading offi ce.
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WITTUR
1
2
3
4
5
6
7
8
1
2
+
0,50 0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.
WITTUR
Option 1: screws, washers, bushing
switch actuation and floating spring
Option 2: screws, washers, bushing
12
±1
A1
SIZE
1:2
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear Package
DESCRIPTION
1051691
DRAWING NUMBER
ESG
GEOM. TOLERANCE SYMBOLS
ISO1101
B
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302
SURFACE TEXTURE SYMBOLS
-
AT1RussC
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
-
A
B
C
D
E
F
1 2345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Change no. Done by Approved by Date of issue
9 10 11 12
G
H
13 14 15 16
J
K
L
M
21
2
1
3
Accessory bag
Beipack
2 3 W007642 limit switch IN62
4 2 249165 W000680 hex. sock. head cap screw M4x25-8.8-zinced
4 1 408043 W001276 contact washer M4x10x0,9-zinced-steel
A01
POS.
POS.
LOCAL INFO WAT
LOKALE INFO WAT
ITEM NR.
ARTIKEL NR.
DESCRIPTION
BESCHREIBUNG
0.02
WEIGHT [kg]
A
B
C
D
E
F
1 32
1 2 43 5
A
B
F
C
D
E
GT2
GEN. TOLERANCE WST-00033
AT1RussC
AT1RussC
DATE
10/06/2016
1/1
PRODUCT CATEGORY
ADD. DESCRIPTION
DESIGNED BY
1:2
accessory bag
Safety switch
SHEET NR DRAWING NUMBER
1022538
A3
SIZE
REVISION
SCALE
FIRST APPROVAL
05/08/2016
AT1KrieK
DATE
DRAWN BY
SURFACE TEXTURE SYMBOLS GEOM. TOLERANCE SYMBOLS
Released
ISO1302 ISO1101
7 - SAFETIES
PRODUCT CODE
ESG
FUNCTIONAL CLASS
B
-
ALLG. TOLERANZ WST-00033 FUNKTIONSKLASSE
OBERFLÄCHE SYMBOLE GEOM. TOLERANZ SYMBOLE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT NR
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
WITTUR
Beipack
Fangschalter
WITHOUT THE CONSENT OF THE WITTUR COMPANY THE REPRODUCTION OR COMMUNICATION TO THIRD PARTIES IS PROHIBITED BY LAW
OHNE ZUSTIMMUNG DER FIRMA WITTUR IST DIE WEITERGABE ODER ÜBERTRAGUNG AN DRITTE PER GESETZ VERBOTEN
8764 53
DESCRIPTION
V2.3
DATE SIGNED BY CHANGED BYCHANGE NR. DESCRIPTION QUANTITY REVISION
0...2,63m/s

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.09
Version -
Date 30.08.2019
Approved WAT/KKR
2. Name plate, designation, identication
The safety gear identication indicators are given on the
name plate. The name plate has to be stick on a visible
place at the elevator’s frame.
The data on the name plate must be compared
with ordering, the project documents and with
the engraved serial number on safety gear body.
Name plate and CE-label contain following data:
Type Serial number Order number /
Elevator number
Guide rail
head width k [mm]
Guide rail conditions
Type B (machined)
oiled
dry
PRELIMINARY
CHANGED BYCHANGE NR.DESCRIPTION DATE
A
B
C
D
E
F
1 32
12 43 5
A
B
F
C
D
GEN. TOLERANCE WST-00033
GT3
AT1DujaZ
DATE
AT1DujaZ
27.04.2016
DESIGNED BY
1/1
PRODUCT CATEGORY
ADD. DESCRIPTION
2:1
1021505
Identification Label
SHEET NR
WITTUR
B
A3
SIZE
REVISION
SCALE
DRAWING NUMBER FIRST APPROVAL
AT1KrieK
DATE
DRAWN BY
SURFACE TEXTURE SYMBOLS
16/06/2016
Working
ISO1302
GEOM. TOLERANCE SYMBOLS
7 - SAFETIES
ISO1101
ESG
PRODUCT CODEFUNCTIONAL CLASS
-01
ALLG. TOLERANZ WST-00033 FUNKTIONSKLASSE
OBERFLÄCHE SYMBOLE GEOM. TOLERANZ SYMBOLE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT NR
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
QUANTITY
Identifikationsschild
WITHOUT THE CONSENT OF THE WITTUR COMPANY THE REPRODUCTION OR COMMUNICATION TO THIRD PARTIES IS PROHIBITED BY LAW
OHNE ZUSTIMMUNG DER FIRMA WITTUR IST DIE WEITERGABE ODER ÜBERTRAGUNG AN DRITTE PER GESETZ VERBOTEN
876453
DESCRIPTION
V2.2
SIGNED BYREVISION
E
P02
66
37
Variable Content according (depent on customer)
type
CE: 604218
-> Certification documents CE
-> Custom Component type
serial number serial number
Elevator number custom number
ID No. ID No. of notified body for manufacturing controls
acc. EC Declaration of Conformity
Certificate
number
604218
-> Certification documents CE
-> Custom Certificate Number
Fmax custom max. load
Fbrems brake force resulting from Fmax
Vmax custom max. tripping speed
k guide rail head width
Y guide rail type (A or B)
oil
evidence image
-> lubricated guide rail
-> unlibricated guide rail
Ground silver, letters black
Character style for datatable: Arial
Grund silber, Schrift schwarz
Schriftart für Datentabelle:Arial
P02 Polyester silver (3M/7818) 37x104 0.00
P01 Polyester silver (3M/7818) 37x104 0.00
PART
TEIL LOCAL INFO WAT LOKALE INFO WAT ITEM NO. ARTIKEL NO. DESCRIPTION **...spec. acc. to WITTUR material datasheet BESCHREIBUNG **...Spez. lt. WITTUR Materialdatenbank
SURFACE TREATMENT
OBERFLÄCHENBEH. mass [kg] Masse [kg]
P01
104
37
PRELIMINARY
CHANGED BYCHANGE NR.DESCRIPTION DATE
A
B
C
D
E
F
1 32
12 43 5
A
B
F
C
D
GEN. TOLERANCE WST-00033
GT3
AT1DujaZ
DATE
AT1DujaZ
27.04.2016
DESIGNED BY
1/1
PRODUCT CATEGORY
ADD. DESCRIPTION
2:1
1021505
Identification Label
SHEET NR
WITTUR
B
A3
SIZE
REVISION
SCALE
DRAWING NUMBER FIRST APPROVAL
AT1KrieK
DATE
DRAWN BY
SURFACE TEXTURE SYMBOLS
16/06/2016
Working
ISO1302
GEOM. TOLERANCE SYMBOLS
7 - SAFETIES
ISO1101
ESG
PRODUCT CODEFUNCTIONAL CLASS
-01
ALLG. TOLERANZ WST-00033 FUNKTIONSKLASSE
OBERFLÄCHE SYMBOLE GEOM. TOLERANZ SYMBOLE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT NR
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
QUANTITY
Identifikationsschild
WITHOUT THE CONSENT OF THE WITTUR COMPANY THE REPRODUCTION OR COMMUNICATION TO THIRD PARTIES IS PROHIBITED BY LAW
OHNE ZUSTIMMUNG DER FIRMA WITTUR IST DIE WEITERGABE ODER ÜBERTRAGUNG AN DRITTE PER GESETZ VERBOTEN
876453
DESCRIPTION
V2.2
SIGNED BYREVISION
E
P02
66
37
Variable Content according (depent on customer)
type
CE: 604218
-> Certification documents CE
-> Custom Component type
serial number serial number
Elevator number custom number
ID No. ID No. of notified body for manufacturing controls
acc. EC Declaration of Conformity
Certificate
number
604218
-> Certification documents CE
-> Custom Certificate Number
Fmax custom max. load
Fbrems brake force resulting from Fmax
Vmax custom max. tripping speed
k guide rail head width
Y guide rail type (A or B)
oil
evidence image
-> lubricated guide rail
-> unlibricated guide rail
Ground silver, letters black
Character style for datatable: Arial
Grund silber, Schrift schwarz
Schriftart für Datentabelle:Arial
P02 Polyester silver (3M/7818) 37x104 0.00
P01 Polyester silver (3M/7818) 37x104 0.00
PART
TEIL LOCAL INFO WAT LOKALE INFO WAT ITEM NO. ARTIKEL NO. DESCRIPTION **...spec. acc. to WITTUR material datasheet BESCHREIBUNG **...Spez. lt. WITTUR Materialdatenbank
SURFACE TREATMENT
OBERFLÄCHENBEH. mass [kg] Masse [kg]
P01
104
37
Max. allowed tripping speed
vtripping [m/s]
Max. mass to be gripped
Fmax [kg]
CE - Type examination
number
Date of manufacture
Address of manufacture
Certied body Type
1. Name plate
2. CE-Label
0...2,63m/s

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.010
Version -
Date 30.08.2019
Approved WAT/KKR
3. Mechanical installation and adjustment
3.1 General
Don’t carry the safety gear on wires or magnet
unit!
Don´t lubricate the safety gear with oil or grease!
This might reduce the braking force!
Do not use a hammer for any adjustment/align-
ment actions!
Don’t x the safety gear upside down.
Do not remove assembling aid (cable tie) before
mechanical installation and adjustment is n-
ished.
3.2 Fastening of the safety gear
In order to fasten the safety gear the delivery include
screws, contact washers and bushings. Bushings for
sheet metal thickness between 3mm and 8mm can be
ordered.
Screws:
M12 screws (at least quality 8.8) have to be used for
safety gear xing.
If the screws are too short (thread engagement
<11mm) a secure xing of the safety gear can
not be guaranteed.
If the screws are too long (thread engagement
>13mm) the proper function of the safety gear
can not be guaranteed.
Shim washers can be used to adjust the thread
engagement.
Observe tightening torque!
Screw M12: 80Nm
• Contact washers:
Use contact washer in order to protect against
unintended loosening of the screws.
WITTUR
Option 1: screws, washers, bushing
switch actuation and floating spring
Option 2: screws, washers, bushing
12
±1
A1
SIZE
1:2
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear Package
DESCRIPTION
1051691
DRAWING NUMBER
ESG
GEOM. TOLERANCE SYMBOLS
ISO1101
B
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302
SURFACE TEXTURE SYMBOLS
-
AT1RussC
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
-
A
B
C
D
E
F
1 2345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Change no. Done by Approved by Date of issue
9 10 11 12
G
H
13 14 15 16
J
K
L
M

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.011
Version -
Date 30.08.2019
Approved WAT/KKR
• Bushings:
The delivered ones, or bushings with the dimensions
from below, may be used.
• Slotted holes for installation:
Safety gear can be mounted in the housing or upright
with slotted holes.
These holes have to be produced according to the
tolerances mentioned in the drawing below. It is
recommended to manufacture the slotted holes as a
laser-part instead of punching in order to allow better
oating of the safety gear.
• Safety switch:
An example for safety switch integration is shown in the
following image.
For reliable actuation of the switch, it is recommended,
to place the contact point(roller actuation point) of the
safety switch as far as possible in the center of the
safety gear.
The image above shows the vertical centering between
safety gear xation screws. The contact point is also
near the horizontal center.
PRELIMINARYPRELIMINARY
ISO 13715ISO 13715
-0,5+0,4
WITTUR
30
+
1 0
A
+
0,2 0
B
19,5
±0,1
29
1 1
Ra 1,6
12
±0,1
( )
Ra 3,2 Ra 1,6
VARIABLE MATERIAL
Local INFO WCN Local INFO WAT VAR. NR. DESCRIPTION
114223 R1509 round bar, steel**
GB/T 699 - 45 R2535 round bar, steel**
sheet metal thickness t
[mm]
A B
3 3,4 11
4 4,4 11
5 5,5 11
6 6,8 11
7 7,8 16
8 8,8 16
P06 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.045
P05 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.048
P04 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.030
P03 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.032
P02 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.035
P01 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.038
PART
TEIL
LOCAL INFO WAT
LOKALE INFO WAT
ITEM NO.
ARTIKELNR.
DESCRIPTION
**...spec. acc. to WITTUR material datasheet
BESCHREIBUNG
**...Spez. lt. WITTUR Materialdatenbank
SURFACE TREATMENT
OBERFLÄCHENBEH.
MASS[kg]
MASSE[kg]
initial version
-
AT1KrieK AT1RussC 22/05/2019
A3
SIZE
3:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
ESG fixing bushing
DESCRIPTION
1030748
DRAWING NUMBER
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302
ALLG. TOLERANZ WST-00033
GEOM. TOLERANZ SYMBOLEOBERFLÄCHE SYMBOLE
FUNKTIONSKLASSE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
ESG Fixierbuchse
AT1LatsL
AT1LatsL
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
22/05/2019
DATE
DRAWN BY
Working
-01
03/10/2017
©WITTUR HOLDING GmbH
watkkr
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Change no. Done by Approved by Date of issue
Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung und Mitteilung seines Inhalts sind verboten, soweit nicht ausdrücklich gestattet. Zuwiderhandlungen verpflichten zu Schadenersatz. Alle Rechte für den Fall der Patent-, Gebrauchsmuster- oder Geschmacksmustereintragung vorbehalten.
SURFACE TEXTURE SYMBOLS GEOM. TOLERANCE SYMBOLS
= =
55
±0,30
20
+
0,20
0
40
65
±0,30
guide rail center line
7
0,2 A
0,05 B
A
B
t
A
B
C
D
E
F
1 32
1 2 43 5
A
B
F
C
D
E
GEN. TOLERANCE WST-00033
DATE
1/1
PRODUCT CATEGORY
ADD. DESCRIPTION
DESIGNED BY
1:1
SHEET NR DRAWING NUMBER
fixing_plate
A3
SIZE
REVISION
SCALE
FIRST APPROVAL
DATE
DRAWN BY
SURFACE TEXTURE SYMBOLS GEOM. TOLERANCE SYMBOLS
ISO1302 ISO1101
PRODUCT CODE
FUNCTIONAL CLASS
ALLG. TOLERANZ WST-00033 FUNKTIONSKLASSE
OBERFLÄCHE SYMBOLE GEOM. TOLERANZ SYMBOLE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT NR
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
WITTUR
WITHOUT THE CONSENT OF THE WITTUR COMPANY THE REPRODUCTION OR COMMUNICATION TO THIRD PARTIES IS PROHIBITED BY LAW
OHNE ZUSTIMMUNG DER FIRMA WITTUR IST DIE WEITERGABE ODER ÜBERTRAGUNG AN DRITTE PER GESETZ VERBOTEN
8764 53
DESCRIPTION
V2.3
DATE SIGNED BY CHANGED BYCHANGE NR. DESCRIPTION QUANTITY REVISION
WITTUR
Option 1: screws, washers, bushing
switch actuation and floating spring
Option 2: screws, washers, bushing
12
±1
A1
SIZE
1:2
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear Package
DESCRIPTION
1051691
DRAWING NUMBER
ESG
GEOM. TOLERANCE SYMBOLS
ISO1101
B
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302
SURFACE TEXTURE SYMBOLS
-
AT1RussC
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
-
A
B
C
D
E
F
1 2345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Change no. Done by Approved by Date of issue
9 10 11 12
G
H
13 14 15 16
J
K
L
M
PRELIMINARYPRELIMINARY
ISO 13715ISO 13715
-0,5+0,4
WITTUR
30
+
1
0
A
+
0,2 0
B
19,5
±0,1
29
1 1
Ra 1,6
12
±0,1
( )
Ra 3,2 Ra 1,6
VARIABLE MATERIAL
Local INFO WCN Local INFO WAT VAR. NR. DESCRIPTION
114223 R1509 round bar, steel**
GB/T 699 - 45 R2535 round bar, steel**
sheet metal thickness t
[mm]
A
[mm]
B
[mm]
3 3,4 11
4 4,4 11
5 5,5 11
6 6,5 11
7 7,5 16
8 8,5 16
P06 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.045
P05 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.048
P04 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.030
P03 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.032
P02 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.035
P01 VAR. LOCAL NR. VAR. NR. VARIABLE MATERIAL Fe/Zn5-10/A ISO2081 0.038
PART
TEIL
LOCAL INFO WAT
LOKALE INFO WAT
ITEM NO.
ARTIKELNR.
DESCRIPTION
**...spec. acc. to WITTUR material datasheet
BESCHREIBUNG
**...Spez. lt. WITTUR Materialdatenbank
SURFACE TREATMENT
OBERFLÄCHENBEH.
MASS[kg]
MASSE[kg]
17/05/2019
05/12/2017
AT1RussC
AT1RussCAT1RussC
AT1RussC - initial Version
initial version
- PCP01
PCP02
A3
SIZE
3:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
ESG fixing bushing
DESCRIPTION
1030748_TC
DRAWING NUMBER
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302
ALLG. TOLERANZ WST-00033
GEOM. TOLERANZ SYMBOLEOBERFLÄCHE SYMBOLE
FUNKTIONSKLASSE
ZUS. BESCHREIBUNG
BESCHREIBUNG
ZEICHNUNGSNUMMER ERSTE FREIGABE
DATUM
MAßSTAB
DATUM
INDEX
PRODUKTKATEGORIE
BLATT
FORMAT GEZEICHNET VON
PRODUKTKODE
KONSTRUIERT
ESG Fixierbuchse
AT1LatsL
AT1LatsL
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
-
DATE
DRAWN BY
Pending Release
PCP02
03/10/2017
©WITTUR HOLDING GmbH
-
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Change no. Done by Approved by Date of issue
Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung und Mitteilung seines Inhalts sind verboten, soweit nicht ausdrücklich gestattet. Zuwiderhandlungen verpflichten zu Schadenersatz. Alle Rechte für den Fall der Patent-, Gebrauchsmuster- oder Geschmacksmustereintragung vorbehalten.
SURFACE TEXTURE SYMBOLS GEOM. TOLERANCE SYMBOLS

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.012
Version -
Date 30.08.2019
Approved WAT/KKR
3.3 Movement of the safety gear
It must be ensured that the safety gear can
slightly move in the horizontal direction (oat).
Therefore suitable bushings must be used (see chapter
3.2). Use this bushings (1) to place the safety gear (2)
on a xing plate (3)*) in slotted holes (4) which allow the
movement of the safety gear in the horizontal direction
despite is xed with xing screws (5).
Additional the safety gear must be held in position with
a spring (7)*) (force at installation length 45 +/-20N,
spring rate 1.5 +/-1N/mm) and a variable adjustable
stop collar (6)*) which is placed on the opposite side.
*) not in the standard content of supply
3.4 Alignment of the safety gear
The safety gear has to be well aligned in accordance to
the guide rail. Before installation of safety gear check
the guide rail’s alignment.
The alignments have to be done implicitly, oth-
erwise the following malfunctioning may hap-
pen:
• unintended gripping of the roller
• brake force performance impaired
Due to wear of the guide shoes, safety gear
alignment/adjustment has to be checked at
every inspection, especially for frames which
are guided outside the center of gravity (e.g.
L-Frames) (see chapter 3.5).
6
2 7
1
3
4
5
E
D
C
F
B
53 421
B
C
D
E
F
A
A
8764 52 31
6 7
9 10
G
H
G
H
WITTUR
MAßSTAB
OHNE ZUSTIMMUNG DER FIRMA WITTUR IST DIE WEITERGABE ODER ÜBERTRAGUNG AN DRITTE PER GESETZ VERBOTEN
WITHOUT THE CONSENT OF THE WITTUR COMPANY THE REPRODUCTION OR COMMUNICATION TO THIRD PARTIES IS PROHIBITED BY LAW
DATUM
DATE
ESG
PRODUKTKODE
PRODUCT CODE
AT1DujaZ
GEZEICHNET VON FORMAT
DRAWN BY SCALE SIZE
Fig_5
BLATT NR INDEX
DATUM
ERSTE FREIGABE ZEICHNUNGSNUMMER
ZUS. BESCHREIBUNG
FIRST APPROVAL REVISION
A2
DRAWING NUMBER SHEET NR
1:1
ADD. DESCRIPTION
1/1
DATE
Rückstellmechanismus für MRM
KONSTRUIERT
PRODUKTKATEGORIE
BESCHREIBUNG
GEOM. TOLERANZ SYMBOLEOBERFLÄCHE SYMBOLE
FUNKTIONSKLASSE ALLG. TOLERANZ WST-00033
B
FUNCTIONAL CLASS
7 - SAFETIES
ISO1101ISO1302
GEOM. TOLERANCE SYMBOLS SURFACE TEXTURE SYMBOLS
DESCRIPTION
resetting mechanism vor MRM
DESIGNED BY
PRODUCT CATEGORY
GEN. TOLERANCE WST-00033
GT2
REVISION QUANTITY DESCRIPTION CHANGE NR. CHANGED BY SIGNED BY DATE
V2.4
WITTUR
1
2
3
4
5
6
7
8
1
2
+
0,50 0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
1 2 3 4 5 6 7 8
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.
WITTUR
1
2
3
4
5
6
7
8
1
2
+
0,50 0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.013
Version -
Date 30.08.2019
Approved WAT/KKR
3.5 Safety gear adjustment
After installation of the car frame and the guides, the
correct centering and adjustment of the safety gear in
accordance to the rails has to be done. Adjust running
clearance via adjusting screw to 2 +0.5/-0mm (see
gure aside).
By mounting the safety gear, observe the posi-
tion of the trigger mechanism. If trigger mech-
anism is set in its initial position by assembling
aid the roller cannot touch the rail.
1. Move the safety gear by hand and check if the
safety gear easily moves.
2. Check the horizontal movement of the safety gear
to be sure that the brake lining is able to contact
the guide rail when the safety gear is activated.
3. Check the residual horizontal movement (at least 5
mm) of the safety gear, when the rail and the brake
lining are in contact. Therefore check distance
between bushing and slotted hole on the backside.
Due to wear of the guide shoes, safety gear run-
ning clearance has to be checked at every in-
spection, especially for frames which are guided
outside the center of gravity (e.g. L-Frames).
3.6 Safety switch adjustment
The safety switch is a essential part of the system
because it interrupts the safety circuit of the elevator.
The alignment has to be made carefully.
The safety switch is actuated because of safety gear
movement due to activation and gripping.
Adjust the safety switch according to the oper-
ating manual of the elevator system.
If there is no switch adjustment specied, follow this
procedure:
1. Safety gear has to be reset(take care that the roller
is not engaged and in initial position)
2. Adjust running clearance according chapter 3.5
3. Adjust safety switch: The switch has to touch the
opposite actuation slightly. The switch must not
be activated(contacts opened) in this position.
The dened safety switch (chapter 4.6) has a total stroke
of at least 5.9 mm. It is opened at 1.0 mm and positive
opened at 1.8 mm deection (see picture below)
WITTUR
1
2
3
4
5
6
7
8
1
2
+
0,50 0
4
±2
A2
1:1
SCALE
PRODUCT CODE
ESG
PRODUCT CATEGORY
7 - SAFETIES
ADD. DESCRIPTION
Safety gear
DESCRIPTION
1019552
DRAWING NUMBER
ESG-25U
GEOM. TOLERANCE SYMBOLS
ISO1101
A
FUNCTIONAL CLASS
GT2
GEN. TOLERANCE WST-00033
ISO1302 AT1DujaZ
DATE
1/1
DESIGNED BY
SHEET REVISION FIRST APPROVAL
DATE
DRAWN BY
©WITTUR HOLDING GmbH
A
B
C
D
E
F
12345678
The reproduction, distribution and utilization of this document as well as the communication of its contents to others without express authorization is prohibited. Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or design.
V5.0
Revision Qty. Description Done by Approved by Date of issue
9 10 11 12
G
H
SURFACE TEXTURE SYMBOLS
SIZE
Change no.
6083000203 / 2196-18
11-12
21-22
0
5,9
1,0
[mm]
1,8 p
1,5
10,5
[N]
±5°
BERNSTEIN AG . Hans-Bernstein-Straße 1 . 32457 Porta Westfalica . www.bernstein.eu
Technical modifications and errors excepted.
The technical datasheet corresponds to the technical state as of 2018-03-21 and will not be removed in case of changes.
Page 1 of 3
Technical Data
Plastic bodied limit switch
Series IN62
Operating symbol
Operating diagram
Description IN62-A2Z SK Article number 6083000203
ONOFF
Fixed positioning with
e.g. fixing screw M5
according to the standard
DINENISO4762.
Tolerance:
Operating point ±0,25 mm;
Direct opening action + 0,25 mm
Operating force ±10%
Electrical Data
Rated insulation voltage Ui400 V
Rated impulse withstand voltage Uimp4 kV
Rated operational voltage Ue240V AC / 24 V DC
Rated supply frequency AC 50 / 60Hz
Overvoltage category II acc. EN60947-1 annex H table H1
Conv. thermal current Ithe 5A
Minimumcurrent 1 mA
Utilization category
AC 15, Ue/Ie240V / 3 A
DC 13,Ue/Ie24 V / 4 A
(B300 table A.1)
Direct opening action pacc. IEC/EN60947-5-1,annex K; direct opening force: 25 N
Short-circuit protective device Fuse 4 A gG
Rated conditional short-circuit current 400 A
Max. contact resistance 25 mOhm(unused)

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.014
Version -
Date 30.08.2019
Approved WAT/KKR
4. Electrical installation and adjustment
4.1 General
Work involving electrical equipment should be
only carried out by an electrical engineer or qual-
ied personnel.
Check power supply and emergency power sup-
ply before installing the safety gear.
Switch off the power to all parts of the elevator
before starting installation work.
Wire the contacts according chapter 4.3
circuit diagram.
4.2 Safety gear power supply
The safety gear is connected to 24 / 12 / 6 V DC power
supply. A monitored1emergency power supply must be
provided to the whole safety system (speed control unit
& safety gear) in order to keep the safety gear in standby
during power failure (i.e. power cut off, etc.) and to allow
release of the safety gear after activation.
Power supply 24 / 12 / 6 V DC +/- 10% must not
be exceeded.
A monitored emergency power supply (24 /12 /
6 V DC +/- 10%) must be connected.
1too low capacity to ensure an emergency rescue should
be detected
4.3 Circuit diagram
The ESG wiring has to fulll the below listed functions.
The circuit diagrams in "ANNEX A"are recommendations
for ESG wiring. A different wiring is allowed, but it has
to fulll the same(or a higher) safety standard and
functionality:
1. If one of the safety gears is activated unintended,
the opposite safety gear has to be activated as
well automatically (electrical synchronization, see
chapter 4.4.1)
2. The safety switch of each safety gear has to be
wired in the safety circuit (each safety switch has
to open safety circuit as soon as the safety gear is
activated)
3. It has to be possible, that power can be supplied to
each safety gear with "emergency rescue switch",
when safety switch has opened the power supply.
4. Both safety gears have to be wired separately
that emergency rescue in up direction is possible.
Therefore, the wiring has to be carried out in a
way, that even in case of a broken coil, switch or
cable of one safety gear, a powering of the other
safety gear coil is possible with emergency rescue
switch. Serial wiring of the safety gear coils is not
allowed.
If a different wiring is used, the functionality has
to be proved in the conformity assessment pro-
cedure or type examination tests of the elevator
system.
Dimensioning and installation of the safety circuit
voltage and fuse protection of the safety circuit has to
be done by the installer (safety switch data see chapter
4.6). Fuse protection of the safety gear coil has to be
ensured by the installer and depends on the number of
used safety gears. A 1A fuse is recommended for a pair
of safety gears.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.015
Version -
Date 30.08.2019
Approved WAT/KKR
4.4 Wiring
The wiring of ESG during electrical installation has to
be done according safety circuit standards (EN 81-20)
Pay special attention during installation of cables, that:
Cables on car roof are secured the right way to
prevent against damage due to unintended steps
on it (sure of step)
Wires are secured against scufng in cable
bushings
A wire with cross section 0.75mm² is recom-
mended for distances up to 20m between ESG
and the speed control unit. For longer distances
the cross section has to be increased (doubled
distance means doubled wire cross section).
4.4.1 Electrical synchronization
It is possible, that only one safety gear is activated e.g.
cable break.
Therefore arrangements have to be done to avoid
damage on car sling or guide rails.
Recommended is, that the power supply of each magnet
is at least serial wired in one NC contact of the opposite
safety switch (see circuit diagram in "ANNEX A"). If
only one safety gear is activated, the power supply of
the opposite safety gear is cut off and it is activated
(electrical synchronization).
For reset of the safety gear, all power supply contacts
of the safety gear safety switches have to be bridged
with an emergency rescue switch (see circuit diagram
in "ANNEX A").
A different wiring is allowed, but it has to fulll the same
safety standard and functionality like mentioned above.
4.5 Speed control unit
In case of overspeed incident the following actions are
carried out by the speed control unit (CS and TS):
1. Safety circuit cut off (according normative
requirement) by pre-deactivation (CS).
2. Activation of the safety gear by power supply cut
off at tripping speed (TS).
The speed control unit has to be a CE certied device(SIL
3 according EN 81-20 PESSRAL) or an alternative device
with the same high(or higher) security level.
In case of an alternative device, the total safety
system(all mechanical, electrical and electronic units
involved in contact separation) has to be assessed.
Be aware that power supply cut off time of the
used speed control unit is low enough to safe-
ly stop the elevator car in every hazardous sit-
uation. Design and calculation of the complete
safety system (speed control unit & safety gear)
has to be done by the installer of the elevator.
4.6 Safety switch
Every single safety gear is additionally equipped with a
safety switch. The safety switch has to open the safety
circuit when safety gear is activated. It is an optional part
of the delivery and has to fulll following requirements.
-Switch acc. EN 81-20 (chapter 5.11.2.2)
-Tested according: EN 60947-5-1
-Contacts: 2 NC contacts
-Utilization category: AC-15, Ue/Ie240V/3A
DC-13, Ue/Ie24V/4A
-Conv.thermal current: Ithe = min. 5A
-Isolation voltage: Ui = min. 400V
-Protection class: min. IP54
-Isolating distance: 4 mm (2x2mm)
-Duty cycle: min. 1 000 000 cycle
-Total stroke: min. 5.9mm
-Direct opening action: max. 1.8mm
-Opening point: max. 1.0mm
-Adjustment: see chapter 3.6
-Contact operating point: see chapter 3.6

ESG-25U Progressive Type Safety Gear
Operating Instruction
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Sheet PM.7.005160.EN.016
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4.7 Safety gear magnet
The safety gear magnet is used to keep the safety gear
in initial position. Following technical data are valid for a
single safety gear:
-Rated voltage: U=24 / 12 / 6 V DC
-Power: 3.5 W
-Duty cycle: 100%
-Protection class: IP54
-Tested according: DIN VDE 0580
Prevent against over-voltage to avoid perma-
nent damage to the magnets and other electri-
cal components
4.7.1 Emergency rescue switch
The emergency rescue switch has to be positioned near
the reset-button of the speed control unit and the release/
reset process of the safety gear must be explained with
an information sign. The safety gear release procedure
is explained in chapter 1.1.2.
NO-contact (according EN 81-20 chapter 5.11.2.2):
-Utilization Category: DC-13, Ue/Ie24V/1.5A
-Conv.thermal current: Ithe = 5A
-Isolation voltage: Ui=600V
-Protection class: IP20
-Tested according: EN 60947-5-1
NC-contact (according EN 81-20 chapter 5.11.2.2):
-Utilization Category: AC-15, Ue/Ie240V/1.5A
-Conv.thermal current: Ithe = 5A
-Isolation voltage: Ui=600V
-Protection class: IP20
-Tested according: EN 60947-5-1
NO and NC-contacts have to be actuated by
one switch (see circuit diagram, chapter 4.3)
Be aware that safety switches and emergency
rescue switch are wired in the part of the safety
circuit, which is bridged by recall drive.
Pay special attention during installation, that:
• prescribed voltage is used for switch and magnets
• installation and usage of cables has to be done ac-
cording valid EMV rules at the moment of installation.
The dimensioning has to be done by the installer.
• cables are installed straight to avoid crushing risk
The safety switch interrupts the safety circuit of
the elevator due to horizontal movement of the
safety gear during activation (see chapter 3.3).
All assembling aid (cable tie) which can block
the trigger mechanism should be removed.
Be aware, that the data mentioned in chapter 4.7
is stated for only one safety gear. This is import-
ant for emergency power supply dimensioning.

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.017
Version -
Date 30.08.2019
Approved WAT/KKR
5. Function testing
Based on the proper installation of the elevator in
compliance with all regulations, it can be assumed that
the functionality of the system is guaranteed. Quality
and function of the individual components are subject
to the strict control and those are tested before factory
shipment. Prior to the initial acceptance and perhaps
even prior to the TÜV tests a functional review of the
safety gear system should be performed.
First test run after installation
Before the rst test run:
The protective coating of grease has to be care-
fully removed from the guide rails! Clean the
guide rails!
The cleaning of the guide rail must be done with
a disc brake cleaner or a similar uid (e.g. De-
Solv-It 1000 degrease, etc.) which does not leave
re-fattening layer. It is not allowed to do mechan-
ical cleaning like grinding. If the surface cannot
be cleaned properly contact the manufacturer.
If necessary, put a thin layer of the guide rail oil
on to the guide rails(see total system manual).
Operation temperature [°C] Viscosity
0...+50 ISO VG 68-320
Clear all people and objects from the lift shaft
before commencing the test run.
Risk of crushing injuries!
The entire lift travel path should be slowly traveled (in
inspection mode) before the function tests. Attention
should be paid to the clearance of all fastened parts,
especially with regards to the guide brackets/safety
gear devices. Find and remove any protruding bolts or
other dangerous restrictions in advance.
Preparations before tests:
When sliding guide shoes are used, clean the
installation (the sliding guide shoes too) and if
necessary also the safety gear.
All assembling aid (cable tie) which can block
the trigger mechanism should be removed.
• Check the external and emergency power supply.
• Check if the trigger mechanism is held in initial posi-
tion by the retention magnet.

ESG-25U Progressive Type Safety Gear
Operating Instruction
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Sheet PM.7.005160.EN.018
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Date 30.08.2019
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5.1 Static functions test
The function of the safety gear has to be checked with
empty car at service speed before the real safety gear
test is performed.
1. Activate the safety gear by speed control unit with
remote release and use recall drive to lower the
elevator car.
2. After a few centimeters (<20cm), the elevator car
should be caught by the safety gears.
3. Try to drive the car down with recall drive to check
that the safety gear has engaged (suspension
ropes should slide on the traction sheave).
4. Activate the emergency rescue switch and provide
power to the magnets again(reset speed control
unit), and release the safety gear by running up the
car. Check if the trigger mechanism and the safety
gear contact have returned to their initial positions.
5. Check if both safety gears work at the same time.
Gripping marks on the guide rails must be on the
same level. The different length between the two
braking marks must be less than 35mm.If the
safety gears are not working simultaneously it
must be checked if the alignment of the safety
gear is correctly made (see chapter 3.4 and 3.5).
The dynamic safety gear test can be done when
the function test is shown to be ok.
If there is not a correct gripping check the following with
the elevator data:
• Mass to be gripped, brake force
• Safety gear xation (up side down)
• Guide rail dimensions and manufacture
• Guide rail condition (dry or oiled)
• Check the functionality of the trigger mechanism and
horizontal movement of the safety gear.
If the gripping after checking the above men-
tioned points is not correct, the safety gear must
be replaced (please contact WITTUR).
5.2 Safety switch test
Before starting these tests, the correct adjustment of
the safety switch has to be checked (see chapter 3.6).
1. Activate safety gear by speed control unit with
remote release.
2. Check if both safety gears are activated. Check if
the safety gears are oating due to the released
trigger mechanism.
3. Check if the safety switches are activated (safety
circuit opened).
The activation of the safety switches can be
checked in the connection box on the car roof.
4. Drive down the car with recall drive until it is
stopped by the safety gear and check if the safety
switch is still activated (safety circuit opened) and
not damaged.
If any safety switch does not open the safety cir-
cuit, check the safety switch adjustment accord-
ing to chapter 3.6.
5. Activate emergency rescue switch, drive down the
car again to fully engage safety and drive the car
out of gripped position afterwards.
6. Switch off emergency rescue switch.
7. Check if the safety gears are released and if the
ESG immediately oats back to initial position
by oating spring force. If the safety gear does
not oat, check the oating spring adjustment
according to chapter 3.3.
8. Check if safety circuit is closed again.
If necessary adjust the position of safety switch.
If the switch is damaged, order a new switch at
Wittur.

ESG-25U Progressive Type Safety Gear
Operating Instruction
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Sheet PM.7.005160.EN.019
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Be sure that the safety switch is well aligned in
order to avoid non activation of the electrical
synchronization.
Positive opening of the safety switch is ensured,
if safety switch is well adjusted
5.3 Electrical synchronization test
Before activating the safety gear be aware that
the car is in a position, where the shaft can be
left. Otherwise there is the risk of trapped per-
sonnel.
1. Activate one of the safety switches by oating the
safety gear manually.
Danger of crushing due to immediate movement
of the trigger mechanism and safety gear.
2. All safety gears have to be activated automatically
after oating one safety gear manually.
3. Activate emergency rescue switch, drive down the
car with recall drive until it is stopped by the safety
gear. Drive the car out of gripped position.
4. Switch off emergency rescue switch.
5. Check if the safety gears are released.
If this procedure isn’t successful, check the wiring (see
chapter 4.3) and safety switch adjustment (see chapter
3.6).
• Repeat this procedure with the second ESG
If it is not possible to activate the safety gear
manually, there is the possibility to remove mag-
net power supply. Check in car connection box, if
both safety switches are opened. Then proceed
with point 3).
5.4 Dynamic function test
Nobody should be in the elevator car, on the car
roof or in the elevator shaft when carrying out
test runs or function tests!
General notes:
Each gripping test has to be documented and a copy of
the test report should remain in the elevator book.
After each test or activation of the safety gear
check if there are any defects that can impair
the normal run of the elevator.
Change the safety gear if there is any damage on
it. A visual check is sufcient.
It is recommended to do the test near a door. It
is easier to unload the weights and to lift up the
elevator after safety gear tests.
5.4.1 Gripping tests downwards for safety gear
Method A - Gripping test with overload
-125% of rated load in the car
-gripping speed = nominal speed
• Secure the counterweight safety gear (if any) against
unintended gripping due to jumping of the counter-
weight.
• Place test weights (equal to 125% of the rated load)
inside the car. Distribute the weights evenly.
• Drive the car down with nominal speed, keep the
machine brake manually opened. After reaching the
nominal speed activate the safety gears with remote
release at the door zone.
• Try to drive the car down with recall drive to check
that the safety gear has engaged (suspension ropes
should slide on the traction sheave).
• Drive the car out of gripping as described in chapter
1.1.2)
• Check gripping distances according "Chapter 5.5.2".
Method B - Gripping test with rated load
-100% of rated load in the car
-gripping speed = tripping speed

ESG-25U Progressive Type Safety Gear
Operating Instruction
Subject to change without notice! © Copyright WITTUR 2016
Sheet PM.7.005160.EN.020
Version -
Date 30.08.2019
Approved WAT/KKR
• Secure the counterweight safety gear (if any) against
unintended gripping due to jumping of the counter-
weight.
• Place test weights (equal to 100% of the rated load)
inside the car. Distribute the weights evenly.
Always ensure that the traveling height is high
enough to keep the car from running onto the
buffer.
• Keep the machine brake manually opened. Depend-
ing on elevator system (geared or gearless drive)
the car has to be accelerated to tripping speed. The
method how to accelerate the car has to be provided
by the installer of the elevator.
• The speed control unit should provide the signal,
which will engage the safety gears and stop the car.
Do not let the car run on the buffer.
• Try to drive the car down with recall drive to check
that the safety gear has engaged (suspension ropes
should slide on the traction sheave).
• Drive the car out of gripping as described in chapter
1.1.2)
• Check gripping distances according "Chapter 5.5.2"
Periodic examinations and tests shall not be
more stringent than those required before the
lift was put into service for the rst time.
5.4.2 Checking of components after gripping tests
• A component check have to be done after every grip-
ping/braking test.
max. force to lift the elevator after gripping:
F = ( 1.5 x Fmax - mcwt ) x g
F.........lifting force [N]
Fmax .....mass to be gripped [kg]
mcwt.....mass of counterweight [kg]
g.........gravity 9,81 [m/s²]
• Remove test weights (if applicable).
• Remove temporary securing of the counterweight
safety gear (if applicable).
• Check from the gripping marks if left and right safety
gear was gripping at the same time.
• Check brake distances
5.4.3 Visual checks after a safety gear tests
• Check if the inclinations of the car, car sling or
counterweight frame, in any direction, is not
more than 5% (for example car oor is not hor-
izontal or car entrance is not parallel with land-
ing door entrance). A visual check is sufcient.
• Check that the trigger mechanism and the safety
gear contact have returned to their initial positions
• Safety gear:
Drive the car to the lowest oor and check from the pit
following items:
-existence of trigger mechanism
-existence of brake lining
-visual defects of safety gear parts
-defects on the roller
-defects on the safety gear housing
If there is any defect the safety gear must be
replaced!
After the safety gear test the burrs must be re-
moved from the guide rails.
If deviations from the permitted limits had been
noticed during safety gear test please contact
us at WITTUR.