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OPERATING INSTRUCTIONS
OL20
Code
PM.7.005825.EN
Version
-
Date
27.05.2021
*pM.7.005825.en$111*
OVERSPEED GOVERNOR
Product manufacturer references can be found
on the name plate. For any support or further
questions please contact your local distributor.
No part of this publication may be reproduced or translated, even in part, without prior written permission
from WITTUR. We reserve the right to modify all specifications and images included in these instructions.
© Copyright WITTUR 2016
Subject to change without notice!
www.wittur.com
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Table of Contents
Related Manuals for WITTUR OL20
Summary of Contents for WITTUR OL20
- Page 1 No part of this publication may be reproduced or translated, even in part, without prior written permission from WITTUR. We reserve the right to modify all specifications and images included in these instructions. © Copyright WITTUR 2016 Subject to change without notice! www.wittur.com...
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Page 2: Table Of Contents
3.2.2 Installing in the machine room ....................12 3.2.3 Shaft head installation ......................13 Roping of the overspeed governor ..................14 Variants of OL20 overspeed governor arrangements ............... 14 Electrical installation and adjustment ..................15 3.5.1 Overspeed contact ........................ 15 3.5.2 remote control ........................ - Page 3 Carrying out repairs ....................... 25 5.6.1 Tensioning the governor rope ....................25 Spare parts ........................... 25 Operational lifetime of the Governor ..................25 Disposal of waste ........................25 6. Revision table Subject to change without notice! © Copyright WITTUR 2016...
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Page 4: General Information Prior To Installation
If the force in the rope exceeds the brake force, the rope in wheel starts to slip inside the trip wheel groove. This is to protect rope and Subject to change without notice! © Copyright WITTUR 2016... -
Page 5: Liability And Guarantee
Important safety advice and danger warnings are The WITTUR guarantee may be voided if parts other emphasized with the following symbols: than those described in these instructions are installed. Unless stated otherwise, the following is not permissible... -
Page 6: Preparation
The details on the name plate must correspond to those on the order sheet. The elevator speed, the width and the type of guide rail used, the total load (mass to be gripped). Subject to change without notice! © Copyright WITTUR 2016... -
Page 7: Scope Of Supply
Overspeed governor pre adjusted and calibrated at the factory (right or left handed) Remote control (pre assembled; optional) different types of Safety covers different types of bases (optional) Mounting- and fixing screw-packages Subject to change without notice! © Copyright WITTUR 2016... -
Page 8: Name Plate, Designation, Identification
Operating instructions Approved WAT/KKR Name plate, designation, identification The overspeed governor OL20 identification indicators are provided on the name plate which is located on the The overspeed governor is pre-adjusted and front side of the governor calibrated at the factory. No re-adjustment is allowed. -
Page 9: Mechanical Installation And Adjustment
(TW + rope mass) shown on type label. (Front side of governor) steel wire rope fibre Rope type core (bright) 3.1.1 Handling of the OL20 Rope diameter Do not lubricate the rope groove of the governor Rope quality 1770N/mm² rope pulley with any oil or grease This might min. -
Page 10: Fixing Possibilities
The max. allowed tolerances are: • Rope diameter = 6mm 3.1.5 Installation The OL20 could be used at facilities according to EN81-20. Subject to change without notice! © Copyright WITTUR 2016... -
Page 11: Installing The Overspeed Governor
27.05.2021 Operating instructions Approved WAT/KKR Installing the overspeed governor 3.2.1 Prior to installation Fixings of other brands than Wittur are outside of the responsibility of our company and is not guaranteed. Revision Qty. Basic governor fixing position: GEN. TOLERANCE WST-00033... -
Page 12: Installing In The Machine Room
50mm above the slab or finished floor. If a cement floor is to be poured over the concrete after installation, bear this in mind when fitting the collar. Subject to change without notice! © Copyright WITTUR 2016... -
Page 13: Shaft Head Installation
Screw M10: 46Nm Screw M12: 80Nm The overspeed governor should be equipped with remote tripping and remote reset for shaft installation, or be easily externally accessible (i.e. via an inspection door). Subject to change without notice! © Copyright WITTUR 2016... -
Page 14: Roping Of The Overspeed Governor
Install the tension weight (refer to operating instructions of tension weight). Connect the second rope end to the rope socket of the safety gear linkage. Variants of OL20 overspeed governor arrange- ments OL20 OL20 Governor rope... -
Page 15: Electrical Installation And Adjustment
• that the single polarity cables have double insulation • that the use and wiring of cables is governed by the The overspeed contact opens the lift installation’s safety circuit. Subject to change without notice! © Copyright WITTUR 2016... -
Page 16: Remote Control
Attaching the safety cover The remote control allows to trigger the overspeed The OL20 cover includes the rope guard. It is forbidden governor electrically in downward direction with rated or to run the elevator without the cover or rope guard if service speed. - Page 17 Overspeed Governor Sheet PM.7.005828.EN.017 Version OL20 Date 27.05.2021 Operating instructions Approved WAT/KKR Subject to change without notice! © Copyright WITTUR 2016...
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Page 18: Function Testing
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 by upward movement! Subject to change without notice! © Copyright WITTUR 2016... -
Page 19: Dynamic Function Test
The figure in the label is the nominal as ordered (for tolerances see 4.1). The undefined acceleration via hand possibly causes different measuring results (acceleration should be as little as possible, ~0.10m/s²). Subject to change without notice! © Copyright WITTUR 2016... -
Page 20: Tripping Speed Adjustment
Approved WAT/KKR Tripping speed adjustment According to EN81-20 / GB 7588 /IS14665 Adjustment table acc. Wittur Standard Safety Code CB = EN81-20 / GB7588 / IS14665 The overspeed governor is adjusted in the factory to the following tripping speeds: CAR Adjustment: TSmax = 1,340 x NS NS <... -
Page 21: Maintenance, Inspection And Repair
Maintenance and inspection Mandatory checks/tests and periods The Overspeed Governor OL20 is maintenance-free, Please contact us at WITTUR if you have any subject to elevator-specific normal operation within its problems or queries. wear limits. Inspection checks must be carried out at regular intervals to guarantee a safe operation. -
Page 22: Inspection Checks
If necessary, clean the groove while using an appropriate • Check visually the surface. No cracks allowed. towel or cleaning agent! • Check the tight fit of the O-Ring on the roller. Subject to change without notice! © Copyright WITTUR 2016... -
Page 23: Check The Adjustment Spring
Lift up the tripping pawl or push the switch plunger by ed range the governor must be changed hand so that the contact is pushed. If the controller is in normal mode, you should not be able to drive the elevator. Subject to change without notice! © Copyright WITTUR 2016... -
Page 24: Measuring Of The Brake (Lifting) Force By 1/2 Tension Weight Mass
(Rope must not get deformed or damaged) Lift up the tripping pawl by hand (see mark A) or via tripping device as long as the governor is fully engaged Subject to change without notice! © Copyright WITTUR 2016... -
Page 25: Carrying Out Repairs
The following repairs should be carried out on site by qualified fitters/service personnel: • Tensioning the governor rope Please contact WITTUR if, for any reason, something is unclear or should you encounter damage that cannot be repaired with the help of these instructions. -
Page 26: Revision Table
Overspeed Governor Sheet PM.7.005828.EN.026 Version OL20 Date 27.05.2021 Operating instructions Approved WAT/KKR Revision table Issue Date Description of change 27.05.2021 Initial version Subject to change without notice! © Copyright WITTUR 2016... - Page 27 Zone, Wujiang City, Jiangsu Province, 50016 Zaragoza, Spain P.R. China 215214 GERMANY TURKEY WITTUR ELECTRIC DRIVES GMBH WITTUR Asansör San. ve Tic. A.S. Offenburger Str. 3 Y Dudullu Organize - Sanayi Bolgesi N° 13 01189 Dresden, Germany 34776 Istanbul, Turkey Subject to change without notice!
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