Änderungen vorbehalten!
Subject to change without notice!
Blatt/
sheet
PM.7.002883.EN.46
Datum/
date
23.01.2013
Stand/
version
C-13.10.2014
Geprüft/
approved
WAT/MZE
Overspeed governor EOS
Operating instructions
5.2 Dynamic functional test with remote tripping
Rated speed triggering and triggering with reduced
speed is described in this chapter. The safety gears
can be checked together with the governor within a
single test.
The function of opening the safety circuit
has to be checked in both directions of
movement - even with uni-directional gov-
ernor.
Trigger testing is a
dynamic functions test
that can
be carried out with or without the lift car rated
load.
Nobody is allowed to stay inside the car dur-
ing test runs or functions tests!
Governor test
with remote tripping
:
•
Power-on of the EOS and apply RESET signal:
See also chapter 4.3.4!
The LEDs are as follows:
“POWER”
˜
LED on
“CHANGE UNIT”
™
LED off
“TTS1”
™
LED off
“TTS2”
™
LED off
“SAFETY”
˜
LED on
“COIL”
˜
LED on
•
Give an elevator call in the governor’s activa-
tion direction.
•
TRIP-input on: Coil1 is released and activates
tripping mechanism. The safety gear is triggered
and stopped the car. Remove TRIP signal.
“SAFETY”
™
LED off
“COIL”
ð
LED flashing
•
The safety circuit is opened.
•
Drive the car out of safety gears
slowly
(e.g.
with service speed; vertical car distance
~5 cm;
stop then
).
•
RESET-input on (momentary switch): Coils are
powered
“SAFETY”
™
LED off
“COIL”
˜
LED on
•
Drive the car completely out of the safety gears
slowly
.
“SAFETY”
˜
LED on
•
The safety circuit is closed now and the gover-
nor wheel free to move. LED’s indication is like
after power on.
Remote tripping (TRIP) releases just one coil.
Therefore the sequence described above has
to be performed twice if necessary.
•
Check that the safety circuit is also opened in
case of upwards-overspeed situation.
If the governor is bi-directional then check the
functionality in up- and in down-direction!
Alternative: Put the rope into the governors test-
groove. Then the angular velocity is about 1.4
times higher than in the standard groove. Check
that tripping speed is reached than!
