Änderungen vorbehalten!
Subject to change without notice!
Blatt/
sheet
PM.7.002883.EN.35
Datum/
date
23.01.2013
Stand/
version
D-02.03.2015
Geprüft/
approved
WAT/MZE
Overspeed governor EOS
Operating instructions
4.6
Trouble shooting
4.6.1
EOS does not start-up
•
Check that power supply is OK (LED 'POWER'
must be on when X5/1-X5/2 is supplied, see
chapter 4.3.2)
•
Apply RESET signal
•
Check that power supply does not drop below
18V, even during reset operation
•
Check that the synchronization plate is in oper-
ational state (see chapter 4.4 on how to get it in
operational state)
•
Check that DIP switches are switched correct
(see chapter 4.3.9). Normally, S1/1 and S1/4 are
on, S1/2 and S1/3 are off.
•
Check that neither TRIP signal nor RESET signal
is active
•
When 'CHANGE UNIT' LED is on or flashing con-
tinuously, proceed as stated in chapter 4.9.
4.6.2
EOS trips when elevator starts
•
Make sure that ENM1 and ENM2 signals are
applied as long as mechanical movement is run-
ning.
•
Make sure that movement does not exceed val-
ues of position (when ENM1 and ENM2 signals
are not active), speed and acceleration as stated
at the identification indicators.
•
Make sure that synchronization plate is always
in operational position during normal opera-
tion.
4.6.3
EOS doesn’t reset
•
If the EOS does not reset after tripping then
move the wheel (car) in opposite direction of
tripping so that the activation mechanism is
free of internal tension forces. Appropriate ver-
tical car moving distance is ~5 cm.
•
Push RESET then.
•
Move the car completely out of the safety
gears.
4.6.4
EOS has opened the safety circuit
The LEDs are as follows:
“POWER”
˜
LED on
“COIL”
˜
LED on
“TTS1”
ð
LED flashing
“TTS2”
ð
LED flashing
The reasons can be: UCM, overspeed, too high
acceleration. EOS isn’t mechanically activated.
