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Idiomas disponibles
Idiomas disponibles
• The device has been designed for overvoltage
category II. If higher transient voltages cannot
be excluded, additional protection measures
must be taken in order to limit the overvoltage
to the values of CAT II.
Advice on noise immunity
All connections are protected against external
sources of interference. The installation location
should be chosen so that inductive or capacitive
interference does not affect the device or its con-
necting lines! Interference (e.g. from switch-
mode power supplies, motors, clocked con-
trollers or contactors) can be reduced by means
of appropriate cable routing and wiring.
Measures to be taken:
• Use only shielded cable and control lines. Con-
nect shield at both ends. The conductor cross-
section of the cables should be a minimum of
2
0.14 mm
.
• The shield connection to the equipotential
bonding should be as short as possible and
with a contact area as large as possible (low-
impedance).
• Only connect the shields to the control panel, if
the latter is also earthed.
• Install the device as far away as possible from
noise-containing cables.
• Avoid routing signal or control cables parallel to
power lines.
2.4 Cleaning and maintenance
The front side of the unit should only be cleaned
using a soft damp (water!) cloth. Cleaning of the
embedded rear side is not planned and is the
responsibility of the service personnel or of the
installer. In normal operation, this device is main-
tenance-free. Should the device nevertheless not
operate properly, it must be sent back to the
manufacturer or to the supplier. Opening and
repairing the device by the user is not allowed
and can adversely affect the original protection
level.
2.5 Start-up
The following points must be checked before
starting up the device:
1. Does the available supply voltage match the
supply voltage of the device?
2. Is the supply voltage connected to the good
terminals of the device?
3. For DC-powered devices, does the supply
voltage respect the polarity?
4. Is the device set and programmed correctly
(function; for counters, max. counting
frequency)?
2.6 Failure possibilities and causes
No display:
• No power supply.
Keys cannot be operated:
• Key lock input is activated
Counter does not count:
• Wrong or reversed wiring of the
counting input
• Setting of an input signal not matching the
pulse generator
• Polarity (NPN/PNP) reversed
• Gate input is active
• No ground connection between the pulse gen-
erator and the counter
• Maximum counting frequency exceeded
• Signal levels do not reach the switching thresh-
old of the counter
• Factor too small
If, despite all, your device still does not operate,
contact your local representative or call us direct-
ly for technical support.
When sending your device back, please attach a
short description of the failure, of the program-
ming and of the connection diagram, in order to
allow us to reproduce a possibly existing defect
and to repair your device as quickly as possible.
Page 3 | ENG
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