Änderungen vorbehalten!
Subject to change without notice!
Blatt/
sheet
PM.7.002883.EN.49
Datum/
date
23.01.2013
Stand/
version
C-13.10.2014
Geprüft/
approved
WAT/MZE
Overspeed governor EOS
Operating instructions
5.4.1 Check of tripping speed:
The tripping speed must be checked by an author-
ized person, according to the figures shown on the
type label (name plate) before putting the elevator
into service. To check tripping speed, use one of the
following methods
The resulted figures may not be exactly the
same as written on the type label due to
acceleration of the governor. But it is still
acceptable if the values are within the limits
shown in the table in chapter 5.4.
The function of opening the overspeed con-
tact is checked by the safety electronics
automatically.
5.4.1.1 Manually checking on the Governor pulley
Remove the governor rope from the main groove
and measure tripping speed using a manual
tachometer. Accelerate the governor pulley manu-
ally in tripping direction until governor trips and
read the tripping speed. In case of high tripping
speeds, maybe you not reach tripping speed manu-
ally. Then this method is not applicable.
5.4.1.2 Checking with test groove
To get the correct tripping speed, you have to put
the rope out of the main groove and lay it down
into the test groove. To prevent an electrical stop at
tripping speed, the electrical tripping gets bridged
when you send down the elevator. Before reaching
nominal speed, the EOS has to activate the safety
gear and the elevator will stop. During this, the top
speed must get measured manually. Attention:
Multiply the top value with 1,4 to get the correct
tripping speed.
5.4.1.3 Manuall checking on the governor rope
To get the correct tripping speed, the governor rope
gets disconnected from the synchronization
and accelerated downwards. When reaching the
tripping speed, the EOS stops the rope. During this,
the top speed must get measured with a tachome-
ter manually. At high speeds, it is possible that the
tripping speed is not reached. In this case checking
with this method is not possible.
When disconnecting the rope from the syn-
chronization, the safety gear is inoperative. .
Then it is very important to make nessesary
arrangements for Protection.
5.4.1.4 Checking with overspeed
To check the tripping speed at overspeed, use the
functional testing mentioned in chapter 5.3
