Trouble shooting
10
4
ekr 500 web guiding controller
EDV No.: MD.299.01.06
Chapter: 10
with removable control panel
Date:
29.07.08
Page:
81/86
Pos. Fault
Possible cause
Solution
8
The actuator/guiding device
does not carry out any
guiding movement.
The display shows the
following warning symbol
(see chapter 7.1.2.5):
•
The controller interlock is
active.
•
Deactivate controller interlock.
For this purpose insert jumper
on terminal 54-55
(see chapter 5.5.2.7).
9
The actuator/guiding device
does not carry out any
guiding movement.
The display shows the
following warning symbol
(see chapter 7.1.2.4):
•
The actuator has been
activated for more than 50
seconds without interruption in
the same direction.
•
No web of material has been
threaded.
•
No web tension exists.
•
Activate the actuator in the
opposite direction.
•
Check for broken parts within
the actuator (e.g. broken spindle).
•
Thread the web of material.
•
Check the web tension.
10
The actuator/guiding device
has moved to an end
position and the motor
switch-off device is not
working.
The LEDs of the keys
or on the control panel
and the display flash.
•
The supply voltage (24V DC)
has dropped out of the
permitted voltage range due
to the actuator’s increased
current consumption
(see chapter 2.1.
3
).
•
Check the power supply.
11
The center position of the
guiding device is not
correctly moved to.
•
If an actuator with position
feedback (
EMS 17/21/22
) is
used, then the servo-center
transducer
OMG 4
was
incorrectly selected.
•
Check adjustment of DIL
switches
S4.7
and
S4.8
(see chapter 5.6.1).
12
All the settings for actuator,
sensors, servo-center
transducer, etc. are correct,
but the unit does not control.
•
The controller gain was
inadvertently reduced to the
minimum value (
0.2)
.
No guiding takes place in
operating mode “
automatic
“.
•
Adjust the controller gain
(see chapter 7.5).
13
A connected edge sensor is
not working.
•
Wrong settings were made
during start-up for the
connected edge sensor.
•
Two edge sensors with
different signal polarity (bright
voltage to dark voltage) are
connected to the controller.
•
Check adjustment of DIL switch
S5
(see chapter 5.6.2).
•
Connect edge sensors with the
same signal polarity
(see chapter 5.6.2).
14
Guiding mode or
cannot be activated.
•
During start-up the
corresponding sensor
(sensor 1 or sensor 2) has not
been activated.
•
Check adjustment of DIL switch
S5
(see chapter 5.6.2).
