WITTUR OL35E-NA User manual

OPERATING INSTRUCTION
OL35E-NA
OVERSPEED GOVERNOR
© Copyright WITTUR 2016
Code
PM.7.002374.EN
D
20.03.2018
Ver ion
Date
www.wittur.com
Original In truction
No pa t of this publication may be ep oduced o t anslated, even in pa t, without p io w itten pe mission f om
WITTUR. Subject to change without notice!
Product manufacturer reference can be found on
the product type label. For any support or further
questions please contact your trading office.
*pM.7.002374.en$111*

Contents Page
1 General information prior to installation
1.1 Description and functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.002
1.2 Liability and guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.003
1.3 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.003
1.4 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.004
1.5 Advice for when working on safety components . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.004
1.6 Content of supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.005
2 Name plate, designation, identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.006
3 Installation
3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.007
3.1.1 Handling of the OL35E-NA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.007
3.1.2 OL35E-NA ixing possibilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.008
3.1.3 Installation tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.008
3.2 Installing the overspeed governor in the machine room . . . . . . . . . . . . . . . . . .PM.7.002374.009
3.3 Roping of the overspeed governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.010
3.3.1 Variations of OL35E-NA overspeed governor arrangements . . . . . . . . .PM.7.002374.010
3.4 Overspeed contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.011
3.5 Electrical installation of the remote control (optional) . . . . . . . . . . . . . . . . . . .PM.7.002374.012
3.5.1 Wiring of the remote control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.012
3.6 Electrical installation of the Magnetic-Ring Encoder (optional) . . . . . . . . . . . .PM.7.002374.014
3.6.1 Specification of the encoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.014
3.6.2 Wiring assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.014
3.7 Attaching the safety cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.015
4 Function testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.016
4.1 Standard speed settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.018
5 Maintenance, inspection and repair
5.1 Maintenance and inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.019
5.2 Recommended checking periods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.019
5.3 Inspection checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.020
5.3.1 General checkings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.020
5.3.2 Check the flyweights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.020
5.3.3 Check the axial movement of the flyweights . . . . . . . . . . . . . . . . . . . . .PM.7.002374.020
5.3.4 Check the condition (wearing) of the wheel rope groove . . . . . . . . . . .PM.7.002374.021
5.3.5 Check the condition of the wheel bearing . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.021
5.3.6 Check the function of the overspeed contact . . . . . . . . . . . . . . . . . . . .PM.7.002374.022
5.4 unctional check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.022
5.4.1 Tripping speed (CS/TS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.022
5.4.2 Brake force (lifting force) of the OL35E-NA governor . . . . . . . . . . . . . .PM.7.002374.022
5.5 Carrying out repairs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.024
5.5.1 Tensioning the governor rope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.024
5.6 Disposal of waste . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.024
5.7 Spare parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PM.7.002374.024
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.001
Datum/
date 08.04.2011
Stand/
version D-20.03.2018
Geprüft/
approved WAT/MZE
D

1.1 Description and functions
The overspeed governor is a safety device that
comes into operation when the lift car exceeds its
permitted speed.
If the lift car exceeds its rated speed upon descent,
the overspeed governor release when its tripping
speed is reached and triggers the safety gear on
the lift car via the governor rope.
The lift car is brought to a standstill and clamps
onto the guide rails.
The basic functions of the governor are to detect
overspeed mechanical and electrically:
• to activate the safety gear mechanical
• to stop the elevator drive electrically
A tension weight is needed to tighten the rope of
the overspeed governor.
Nominal speed max. 600ft/min (3,05m/s)
Travel height max. 500ft (152,4m)
Rope diameter d = 6 / 6,5mm
Setting 1 Setting 2
Brake force of min. 500N 800N
the governor max. 1000N 1300N
Tension weight min. 250N 600N
max. 800N 800N
Travel downwards:
Because of the centrifugal force, two rotating
spring loaded flyweights (1) are forced outwards.
Thereby, the two eccentric wheels (3) connected
with the flyweights move towards the trip wheel
(6) in the centre.
If the nominal elevator speed is exceeded, the fly-
weight (1) will hit the contact plate (7), activating
the overspeed contact (5) to switch off the safety
circuit.
If the speed still increases, the eccentric wheels
will grip into the non-rotating trip wheel (6),
which will block the governor wheel and activate
the safety gear.
The trip wheel has a friction coupler, which limit
the force in the rope to max. 1000 / 1300N. If the
force in the rope exceeds the brake force, the trip
wheel starts to rotate together with the governor
wheel. This to protect rope and the safety gear sys-
tem from damage.
Travel upwards:
In upwards direction the safety circuit is switched
off in the same way as for downwards direction.
The safety gear will not be activated in upward
direction!
1. lyweight 5. Overspeed contact
2. Spring 6. Trip wheel
3. Eccentric wheel 7. Contact plate
8. Governor wheel
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.002
Datum/
date 08.04.2011
Stand/
version C-20.09.2017
Geprüft/
approved WAT/MZE
1 General information prior to installation

1.2 Liability and guarantee
This instruction handbook is written for people
who are familiar with lift servicing and installa-
tion. Sufficient knowledge of lifts is essential.
WITTUR accept no responsibility for damage
caused by improper handling, or for damage
caused as a result of actions other than those stat-
ed 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 are not per-
missible due to technical safety reasons:
• The use of components other than those
installed
• Carrying out modifications, of any kind on the
overspeed governor
• The installation of overspeed governors other
than those described or the installation of
unsuitable overspeed governors.
• Destruction of the lead seal
• Carrying out faulty or improper maintenance
or inspection checks
• using unsuitable accessories, spare parts or
operating material which has neither been re-
leased by the WITTUR Company nor consists of
original WITTUR spare parts
1.3 Safety precautions
WITTUR machine installation or repair engineers
are chiefly responsible for the safe operation of
machinery.
It is essential to comply with and keep abreast of
all safety rules and legal obligations in order to
avoid personal / product damage during installa-
tion, maintenance and repair work.
Important safety advice and danger warnings are
emphasized with the following symbols:
General danger warning
High danger risk warning (i.e. crushing
edge, cutting edge etc.).
Risk of damage to machinery parts (i.e. due
to incorrect installation, or such like).
Important information sign
These operating instructions belong with the
whole installation and must be kept in a safe place
at all times (i.e. machine room).
The proper assembly and installation of WITTUR
swingarm tensions weights requires correspond-
ingly well trained fitting engineers. The responsi-
bility of training lies with the company appointed
to carry out the work.
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.003
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE

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 floor 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
qualified personnel.
1.4 Preparation
Before beginning installation work it is in your
own interest to ascertain the constructional and
spatial conditions. Where (workshop or on site)
and when which installation operations can or
must be carried out. It is recommended therefore,
taking into account all the given circumstances, to
plan the various operational sequences in advance,
rather than carrying them out prematurely and in
an unconsidered manner.
On receipt of the delivery, the goods or compo-
nents should be checked for correctness and com-
pleteness with the order sheet.
The following should be checked also:
- that the factory and order number correspond
- that the details on the name plate correspond
to those on the order
- the elevator speed
- the elevator travel height
- the rope wheel diameter suites to the over-
speed governor rope
1.5 Advice for when working on
safety components
Overspeed governors are classified as safety com-
ponents. It is most important that the standards
and guidelines described in this section be com-
plied with as well as those given in the rest of this
operating manual.
These instructions, and especially the sec-
tion on safety precautions, should be read
and fully understood before work begins.
Safety devices require special attention. It is com-
pulsory that they function perfectly to ensure
danger free installation operation.
Safety devices that can only be adjusted after
installation should be done so immediately after
installation.
Operation of safety devices installed ex-works
must be tested immediately.
If it is necessary to disassemble a safety device
during servicing or repair, they should be reassem-
bled and comply with the required tests, as soon as
the work has been carried out.
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.004
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE

1.6 Content of supply
After delivery, check the overspeed governor for damage and for full delivery of parts. The content of
supply covers:
- Operating instructions manual
- Overspeed governor OL35E-NA (pre-adjusted
and calibrated at the factory) including over-
speed contact
- Magnet Encoder (pre-assembled; optional)
- Remote control (pre-assembled; optional)
- Safety cover
- Different types of bases (optional)
including screw package
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.005
Datum/
date 08.04.2011
Stand/
version 22.03.2013
Geprüft/
approved WAT/MZE
Geschwindigkeitsbegrenzer
OL35
Betriebsanleitung
Geschwindigkeitsbegrenzer OL35
D7A0MDE 03.2009
WITTUR GmbH
Sowitschstrasse 1  A-3270 Scheibbs, Austria
Tel.[phone] Fax [phone]
http://www.wittur.atE-Mail: [e-mail]
Nachdruck, Übersetzung und Vervielfältigung in
jeglicher Form - auch auszugsweise - bedürfen der
schriftlichen Genehmigung der WITTURAG.
Änderungenvorbehalten!
Änderungen gegenüber den in dieser Betriebsanlei-
tung aufgeführten Angaben und Abbildungen behal-
ten wir uns vor.
Subjectto change without notice!
Blatt/ sheet D7A0MDE.000
Datum/
date 16.04.2002
Stand/
version D-09.03.2009
Geprüft/
approved WAT/MZE
*D7A0MDE$111*

The overspeed governor OL35E-NA identification
indicators are located on the governor safety
cover.
These consist of a metal name plate and a identi-
fication sticker which gives following data
(meeting ASME A17.1):
• Mechanical tripping speed
• Size, material and construction of the gover-
nor rope
• Governor pull through tension force
• Type term of overspeed governor
• Nominal speed
• Safety circuit switch off speed
• Serial number
• Elevator number
The overspeed governor is pre-adjusted
and calibrated at the factory. No re-adjust-
ment is allowed.
2 Name plate, designation, identification
Date of manufacture
Type term
Type term
Serial
number
Nominal speed NS = (m/s)
Rope diameter
Tripping speed TS = (m/s)
Tripping speed TS
Data of governor rope
Pull through tension force
Safety circuit switch off
speed (m/s)
Order number - Elevator number
(refer to delivery or order sheet)
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.006
Datum/
date 08.04.2011
Stand/
version B-21.10.2013
Geprüft/
approved WAT/MZE
min. brake force (N)

3.1 General
Check the direction of rotation: When the
car / counterweight travels downwards the
governor has to rotate in the arrow
direction.
3.1.1 Handling of the L35E-NA
Don’t take / carry the governor by the fly-
weight or overspeed contact!
Don´t use oil or grease as lubrication! This
might reduce the governor breaking force!
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
3 Installation
Blatt/ sheet PM.7.002374.007
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE
M12x40-8.8
tightening torque 80Nm
Electrification of the safety
circuit contact, refer to
wiring diagram
Arrow indicating the gover-
nor tripping direction
Rope part connected to the safety
gear must hang plumb

Änderungen vorbehalten! Subject to change without notice!
3.1.2 L35E-NA Fixing possibilities
OL35E-NA can be mounted standing only
3.1.3 Installation tolerances
The overspeed governor must be installed
vertically.
The overspeed governor must be installed
in a way, that the governor rope runs par-
allel into the wheel groove!
The max. allowed tolerances are: max. ±2°
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.008
Datum/
date 08.04.2011
Stand/
version 20.06.2013
Geprüft/
approved WAT/MZE

3.2 Installing the overspeed governor
in the machine room
Always pay attention to the overspeed
governor rotational direction during each
stage of installation.
Preparation
The overspeed governor can either be installed
directly on the machine room floor or on a support
structure.
Lifts complying with EN-81 require the
rope aperture to be kept as small as possi-
ble and to be fitted with a 50 mm high col-
lar. A corresponding safety collar must be fastened
to the floor before installation takes place.
If a cement floor is to be poured over the
concrete after installation, bear this in
mind when fitting the collar.
Installation procedure
Always pay attention to the overspeed
governor rotational direction during each
stage of installation.
(1) If a supporting base is being used, it must be
screwed to the overspeed governor.
(2) Position the overspeed governor (with or
without base) and align the plumb line over
the centre of the safety gear
(3) Mark the drill holes and put the stud anchor in
place (stud anchors are delivered with sup-
porting base)
(4) asten down the overspeed governor (with or
without supporting base)
Take care of tightening torque
Screw M10: 46Nm
Screw M12: 80Nm
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.009
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE
Safety collar
Concrete
Shaft ceiling
(1)
(3-4)
(2)
Screw M12x40
Stud anchor: M10 or M12
(depending on base deliv-
ered)

Änderungen vorbehalten! Subject to change without notice!
3.3 Roping of the overspeed governor
The overspeed governor can only operate perfect-
ly if the governor rope and the tension weight are
installed correctly.
(1) Leave enough extra length on the governor
rope and lay it over the overspeed governor
wheel
(2) Connect the first rope end to the rope socket
and attach it to the safety gear
(3) Install the tension weight (refer to operating
instructions of tension weight)
(4) Connect the second rope end to the rope sock-
et of the safety gear linkage
3.3.1 Variations of L35-NA overspeed gov-
ernor arrangements
L35E-NA placed in shaft top
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.010
Datum/
date 08.04.2011
Stand/
version C-20.09.2017
Geprüft/
approved WAT/MZE
Governor rope
Rope socket
Guide rail
Tension weight
OL35E-NA
Base 86118 /
97037

Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.011
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE
The contact is adjusted and sealed in the
factory. It is not allowed to be adjusted on
site.
(1) Connect the contact
(2) Test the contact function
The contact plate and the detent pin must
be put back to the initial position after
being manually tested.
verspeed contact
- use category: AC 15, B300,
Ue/Ie240V (1,5A)
- thermal current: Ithe = 5A
- insulation voltage: Ui= 250V AC
- protection type: IP 43
- approved in accordance: VDE 0660 T100
IEC/EN 60947-5-1
(1,2)
3.4 verspeed contact
Work involving electrical equipment
should only be carried out by an electrical
fitter or qualified personnel.
Before carrying out work, switch off all
voltage to installation equipment.
Take note of the following when laying the
connection cable:
• that the single polarity cables have dou-
ble insulation
• the use and laying of cables is governed
by the EMC
The overspeed contact opens the lift instal-
lation’s remotely controlled safety circuit.
Contact plate
Overspeed contact

3.5 Electrical installation of the
remote control (optional)
The remote control allows to trigger the overspeed
governor electrically in downward direction with
rated or service speed.
Additionally the remote control can be used to
reset the contact plate electrically.
3.5.1 Wiring of the remote control
The overspeed contact and the motor are
pre-wired, adjusted and sealed in the fac-
tory.
Power supply of the motor:
Voltage 24VDC +10/-15%
Current 1,6A +/-10%
switch-on time min. 2 sec
max.30 sec
Motor protection:
The motor protection (PTC) is included in the con-
nection box of the remote control.
- response time for the motor protection:
typical 5 sec. max. 30 sec.
- recovery time for the motor protection:
in. 120 sec.
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.012
Datum/
date 08.04.2011
Stand/
version C-20.09.2017
Geprüft/
approved WAT/MZE
Contact plate
Overspeed contact
Connection box
Motor

Änderungen vorbehalten! Subject to change without notice!
The control panel should be able to oper-
ate the motor in both directions for the
specified time.
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.013
Datum/
date 08.04.2011
Stand/
version D-20.03.2018
Geprüft/
approved WAT/MZE
pin
7
8
+24 VDC
GND
GND
+24 VDC
Motor Position “B” - left
trip mechanical reset switch
pin
6
7
+24 VDC
GND
GND
+24 VDC
Motor Position “A” - right
trip mechanical reset switch
0
WHUPLQDOWHUPLQDOWHUPLQDOWHUPLQDO
Remote
control
Motor
Safety
switch
D
D

3.6 Electrical installation of the
Magnet-Ring Encoder (optional)
The magnetic ring encoder is used for measuring
the accurate car position.
The signal may be used only as reference
to another available source.
The encoder is delivered with 4 ft cable
protected by a flexible conduit.
3.6.1 Specification of the magnet sensor
3.6.2 Wiring assignment
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.014
Datum/
date 08.04.2011
Stand/
version 22.03.2013
Geprüft/
approved WAT/MZE
Encoder
Magnet-Ring
Phönix P9500
type
7,5 .. 13 VDC 20 mA / 5 V DC 800 pulses/rev.
voltage supply
range +Vs
output accuracy

Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.015
Datum/
date 08.04.2011
Stand/
version 22.03.2013
Geprüft/
approved WAT/MZE
3.7 Attaching the safety cover
Move the delivered covering via the overspeed
governor and attach as represented with screws

Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.016
Datum/
date 08.04.2011
Stand/
version 08.04.2011
Geprüft/
approved WAT/MZE
Granting that the installation will be done under
strict observance of all standards the operational
reliability of the system is assured. The quality and
function of individual components are subject to
thorough inspection and is checked before dis-
patch from our works.
The overspeed governor system should undergo an
operational test before commissioning or before
possible inspection from a technical institute.
First test run after installation
Before the first test run:
Clean the guide rails!
Clear all people and objects from the ele-
vator shaft before commencing the test
run -> Risk of crushing injuries!
The entire elevator travel path should be slowly
travelled (in inspection mode) before the functions
tests. Attention should be paid to the clearance of
all fastened parts, especially with regards to the
guide brackets/safety gear devices. ind and
remove any salient bolts or other dangerous
restrictions well in advance.
A static functions test should be carried out
afterwards.
Static functions test:
Overspeed governor with manual tripping:
• Trigger the overspeed governor manually by
pushing a screwdriver trough the hole on the
back of the governor stand
• Let the lift car slowly descend
Overspeed governor with remote control:
• Operate the remote tripping function
• Let the lift car slowly descend
The overspeed governor must actuate the safety
gear. The overspeed contact must interrupt the
safety circuit by activating the overspeed contact.
Reset the overspeed governor, the safety
gear and the overspeed contact!
4 Function testing
rubber puffer
tripping plate

Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.017
Datum/
date 08.04.2011
Stand/
version D-20.08.2018
Geprüft/
approved WAT/MZE
Testing all functions
Refer to “Section 8.10 Acceptance inspec-
tions and tests” of the ASME A17.1.
In the following the check of electrical tripping,
the release of the safety gear as well as the verifi-
cation of the tripping speed is described.
The operation of the electrical tripping (CS)
must be checked in both directions of
movement.
Check of tripping speed (CS / TS):
• Disconnect the rope clamp from the synchro-
nization.
• Rotate the governor manually in tripping
direction - Simultaneously measure the speed
on the rope with a speedometer.
• Accelerate the rotation speed - as slow as
possible - until the speed governor triggers
electrical and mechanical.
• Compare the measured value with the values
given in the chapter 4.1.
• Connect the rope clamp with the synchroniza-
tion lever again after successful testing!
The electrical tripping must be checked in
up direction too - the governor triggers
only electrically in up direction.
The resulted figures may not be exactly (up
to a few percent) the same as on the type
label, although it is still correct.
Reason:
a) igure in label is the nominal as ordered (for
tolerances see 4.1).
b) The un-defined acceleration via hand possibly
cause different measuring results. The acceler-
ation should be as less as possible (~0.10m/s²)
The governor must be replaced if the
measured tripping speeds don’t correspond
roughly with the values in chapter 4.1.
Adjustments on site are not allowed!
Trigger testing is a dynamic functions test that
can be carried out with or without the car rated
load.
No one should be in the car when carrying
out test runs or functions tests!
After each test, the contact plate must be
reset by hand or by the use of the remote
control.
Check of the electrical tripping (CS):
• Let the car ascent at rated speed
• Trigger the speed governor manually
(by pushing a screwdriver trough the hole on
the back of the governor stand) or by the use
of the remote control
The overspeed governor must stop the elevator
electrically by interrupting the safety circuit.
Check of the mechanical tripping (TS):
• Let the car descend at rated speed
• Trigger the speed governor manually
(by pushing a screwdriver trough the hole on
the back of the governor stand) or by the use
of the remote control
The overspeed governor must stop the elevator
mechanical by actuating the safety gear.
D

150
(0,76)
C
CWT
157,5
(0,80)
157,5
(0,80)
210,0
(1,07)
231,0
(1,17)
157,5
(0,80)
157,5
(0,80)
210,0
(1,07)
231,0
(1,17 )
172,5,
(0,88)
181,6
(0,92)
210,0
(1,07)
231,0
(1,17)
600
(3,05)
C
CWT
630,0
(3,20)
630,0
(3,20)
703,0
(3,57)
773,3
(3,93)
630,0
(3,20)
630,0
(3,20
740,0
(3,76)
814,0
(4,14 )
690,0
(3,51)
711,4
(3,61)
740,0
(3,76)
814,0
(4,14)
200
(1,02)
C
CWT
210,0
(1,07)
210,0
(1,07)
252,0
(1,28)
277,2
(1,41)
210,0
(1,07)
210,0
(1,07))
280,0
(1,42)
308,0
(1,56))
230,0
(1,17)
242,2
(1,23)
280,0
(1,42)
308,0
(1,56)
Nominal
speed
NS ft/min
(m/s)
350
(1,78)
500
(2,54)
Application
C
CWT
C
CWT
Contact speed
CSdown
ft/min (m/s)
min. max.
367,5
(1,87)
367,5
(1,87)
525,0
(2,67)
525,0
(2,67)
406,8
(2,07)
448,2
(2,28)
562,5
(2,86)
618,8
(3,14)
Contact speed
CSup
ft/min (m/s)
min. max.
367,5
(1,87)
367,5
(1,87 )
525,0
(2,67)
525,0
(2,67 )
452,0
(2,30)
497,2
(2,53 )
625,0
(3,18)
687,5
(3,49))
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.018
Datum/
date 08.04.2011
Stand/
version C-20.09.2017
Geprüft/
approved WAT/MZE
4.1 Standard speed settings
The overspeed governor of the car (C) and
counterweight (CWT) are adjusted at the
factory to the following tripping values
(ASME A17.1).
Adjustment tolerances:
CS down -4%/+0%
TS -4%/+0%
Contact speed CSdown:
(for car side valid only)
CS < 1,0 x TS for NS ≤ 150 ft/min (0,762 m/s)
CS ≤ 0,9 x TS for NS ≤ 500 ft/min (2,54 m/s)
CS ≤ 0,95 x TS for NS >500 ft/min (2,54 m/s)
Tripping speed
TS
ft/min (m/s)
min. max.
402,5
(2,05)
423,7
(2,15)
575,0
(2,92)
592,8
(3,01)
452,0
(2,30)
497,2
(2,53)
625,0
(3,18)
687,5
(3,49)

once a year
once a year
once a year
once a year
Änderungen vorbehalten! Subject to change without notice!
verspeed Governor
L35E-NA
Operating instructions
Blatt/ sheet PM.7.002374.019
Datum/
date 08.04.2011
Stand/
version D-20.08.2018
Geprüft/
approved WAT/MZE
5 Maintenance, inspection and repair
5.1 Maintenance and inspection
The overspeed governor OL35E-NA is mainte-
nance-free, subject to elevator-specifically normal
operation within its wear limits.
Inspection checks must be carried out at regular
intervals to guarantee safe operation.
Alterations, damage or other irregularities should
be reported, and repaired if possible. requent
servicing and control checks not only make opera-
tion of the installation safer, but also ensure long
and reliable service life. It is recommended that
control checks and servicing be carried out before
legally prescribed functional tests (e.g. before TÜV
tests).
The lift must be out of service before you
can start with maintenance checks where
the safety cover must be removed.
The table below shows the standard mandatory
tests and intervalls.
5.2 Recommended checking periods
The lift installation must be immediately
taken out of use should any damage or
irregularities arise which could possibly
impair operational safety.
The checks and tests mentioned below are
the minimum required checks to ensure
product safety. The required checks to
adhere national laws or requlation can dif-
fer from the shown table and have to be
fullfilled.
Maintenance work should be expertly car-
ried out with utmost care in order to guar-
antee safe installation operation.
Pleasecontact us at WITTUR if you have
any problems or queries.
With the consent of Wittur, the test proce-
dure and intervals can be changed.
Chapter Acceptance
test
Mandatory periodical tests
OL35E-NA
Check of the mechanical tripping (TS)
Check of the electrical tripping (CS)
Check of the tripping speed (CS/TS)
4
4
4
x
x
x
every second year
every second year
every second year
Cleaning
Condition of the flyweights and springs
Operation of the overspeed contact
Condition of the pulley (main) bearings
Mechanical tripping test
Tripping speed test
Brake force (pull through force)
5.3
5.3
5.3
5.3
4
5.4
5.4
Wear of the rope groove 5.3 every second year
After every operation (tripping) a visual check of the governor, the rope and the connection to the
safety gear syncronisation as well as a check of the flyweights (see 5.3.2/5.3.3) has to be performed.
If any damage is recognized the product has to be changed.
D