Dynatech VEGA Specification sheet

LIMITADOR DE VELOCIDAD DYNATECH/
DYNATECH OVERSPEED GOVERNOR/
LIMITEUR DE VITESSE DYNATECH/
GESCHWINDIGKEITSBEGRENZER
DYNATECH/
VEGA
INSTRUCCIONES DE USO Y MANUTENCIÓN/
INSTRUCTIONS FOR USE AND MAINTENANCE/
INSTRUCTIONS D’USAGE ET ENTRETIEN/
GEBRAUCHS- UND WARTUNGSANLEITUNG/

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
1
CONTENTS
1 INTRODUCTION......................................................................................... 2
2 MAIN COMPONENTS.................................................................................2
3 WORKING PRINCIPLES. ...........................................................................3
3.1 Overspeed contact...............................................................................7
3.2 Remote tripping mechanism (optional).................................................8
3.3 Remote reset device (Optional) ......................................................... 10
3.4 Uncontrolled movement UCM device.................................................10
3.5 VEGA LS OVERSPEED GOVERNOR...............................................17
4 FIXING TO THE FLOOR........................................................................... 17
5 TECHNICAL FEATURES.......................................................................... 18
6 TYPE OF ADJUSTMENT.......................................................................... 19
7 INSTRUCTIONS OF USE AND MAINTENANCE. ....................................21
8 INSTALLATION DRAWINGS.................................................................... 21

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
2
1 INTRODUCTION.
The DYNATECH VEGA overspeed governor is designed to cut off the
current of the security series line in the event of car overspeed, bringing the lift
to a standstill when necessary.
The VEGA overspeed governor covers a wide range of speeds and can
be used with instant and progressive safety gears.
2 MAIN COMPONENTS.
Each governor is composed of
the following main elements: a
pulley, a centrifugal system, a
locking device, a casing and a plate
to link the governor to the floor in the
machine room.
The following picture shows
an image of the governor assembly:
Where:
(1) – Main pulley.
(2) – Centrifugal system.
(3) – Locking system.
(4) – Floor fixing plate.

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
3
3 WORKING PRINCIPLES.
The governor is of the centrifugal type and is able to work either
upwards or downwards.
The governor is fixed directly to the floor in the machine room or in the
upper part of the well, joined by the rope to its tensing
pulley located in the pit.
This tensing pulley is attached to the guide pulley by
flanges.
The rope passes through the groove of the governor
and the tensing pulley.
The ends of the rope are attached to the linkage
anchoring. Thus, when the car reaches its tripping
speed, the rope-governor relative movement will lock
it.
The working diagram is as follows:
(4) VEGA governor
(5) Governor rope
(6) Tension weight
As it was indicated above, the governor is secured to the floor in the
machine room or to the well.

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
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The ends of the rope (2) are attached to the linkage anchoring (1)
thorugh eyes.

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
5
The tension weight is secured to the guide rail by flanges.
The rope must have enough tension (500 N on each side). In the event of
tension loosening a rope slackening contact (1) connected to the installation
security series will cut off the current.

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
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Due to the weight of the masses, the contact is protected from knocks by
the part to which it is attached, therefore, the sensor cannot be damaged.
The tension weight assembly can be attached to both sides of the guide
rail. The guide rail fixing plate has holes on both sides, so that the contact is not
a problem when changing the position of the assembly and so that the sensor
can be attached on both sides.
The loosening margin (*) is shown in the figure below:

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
7
As indicated, if the tightness would be less than acceptable, the bar
supporting the weight and the pulley would make contact with the sensor.
3.1 OVERSPEED CONTACT.
The governor has a built-in overspeed contact.
According to the European Standard UNE-EN 81, at the 9.9.11.1 section,
the current cut off by means of the overspeed governor contact is mentioned. In
this section is specified that for rated speeds of no more than 1 m/s, the
overspeed contact can be triggered when the governor locks.
Therefore, the governors, whose
rating speed is 1 m/s or lower, will be
provided with an overspeed switch that is
triggered at the same time as the governor
locks.
In the left picture the contact
situation is shown (1).
The contact will act when the
governor reaches a speed above the rated
speed and a moment before the governor
actuates.
When this contact is triggered, the
current of the security series is cut off. This
system has a remote reset.

INSTRUCTIONS: VEGA Cod: DYN35.05
Date: 25-02-2013 Check: 05
8
For rated speeds above 1 m/s,
the overspeed switch must be
triggered at a speed above the
rated speed, but bellow the
tripping speed of the governor.
The contact (2) is shown in the
right picture.
This system has a manually
reset. If the governor acts on this
contact, the current of the security
circuit will not circulate until this
contact is manually returned to its
initial position
Remark: For installations in the well or similar, an automatic reset for this
contact is possible. See afterwards
3.2 REMOTE TRIPPING MECHANISM (OPTIONAL)
The governor can have a built-in remote tripping mechanism to check the
correct interlocking of the governor and the subsequent safety gear wedging.
Basically, it consists of a remote interlocking electromagnetic system,
which can be driven from the engine room. In order to help during the
installation, three versions of the system are available: