8 Fault elimination
© Maschinenfabrik Reinhausen 2012
2117246/02 EN
TAPCON® 230 basic
155
Characteristics/detail
Cause
Remedy
Display
Different brightness on
several devices.
Display dimming is acti-
vated/deactivated.
Check settings for "Display dim-
ming" function.
LEDs
Configurable
LED
lights
up.
Customized LED
parameterization.
Check parameter.
Correct if necessary.
LEDs
LED flashes irregularly.
Input signal not constant.
Check input signal.
COM1
Cannot be connected to
PC using TAPCON®-
trol.
Different baud rates set.
Check "Baud rate" parameter
(voltage regulator and TAP-
CON®-trol).
Correct if necessary.
Plug terminals
Plug terminal cannot be
installed.
Plug terminal and socket are
not the same.
Check coding and plug terminal.
Table 49
Troubleshooting: Man Machine Interface
8.1.3
Incorrect measured values
Characteristics/detail
Cause
Remedy
Measured voltage
No measured value.
Connection has no contact
in the plug terminal.
Check wiring and plug terminal.
Insulation trapped.
Wire not inserted far
enough.
Circuit breaker tripped.
Check fuse.
Measured voltage
Measured value too
low.
Voltage drop on measuring
lead.
Check measured voltage at plug
terminal X2:1/X2:2.
Measured voltage
Measured
value
fluctuates.
Possible sources of fault:
Lines laid in parallel.
Tap-change
operations.
Check measured voltage at plug
terminal X2:1/X2:2.
Increase distance from source of
interference.
Install filter if necessary.
