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9 Fault elimination
Maschinenfabrik Reinhausen 2014
148
222/08 EN
TAPCON® 240
Characteristics/detail
Cause
Remedy
Measured current
▪
Measured value too
high.
▪
Measured value too low.
Transmission ratio not cor-
rectly parameterized.
Correct parameterization.
Incorrect input connected.
Remove short-circuiting jumper.
Phase angle
▪
V/I.
Fault in external transformer
circuit.
Check transformer circuit.
Transformer circuit incorrect-
ly parameterized.
Compare with system connection dia-
gram.
Correct parameters.
Compare measurement values on info
screen.
Transpose current transformer connec-
tion.
Check polarity of transformer circuit.
Correct if necessary.
Check circuit.
Correct if necessary.
Check measurement points.
Correct if necessary.
Table 39: Incorrect measured values
Parallel operation faults
Characteristics/detail
Cause
Remedy
Parallel operation cannot be
activated.
▪
LED not lit up.
"Parallel operation method"
parameter deactivated.
Set parallel operation method parameters.
CAN bus address of device
set to "0".
Set CAN bus address (anything but 0).
Problem with CAN bus.
▪
Device not listed.
Device incorrectly connected
(plug twisted, offset).
Check connections.
Connect as shown in connection diagram.
Devices have the same CAN
bus addresses.
Set different CAN bus addresses.
Table 40: Parallel operation faults
Tap position capture incorrect
Characteristics/detail
Cause
Remedy
Step display incorrect.
▪
Plus or minus sign incor-
rect
Incorrect wiring.
Check wiring.
Connect as shown in connection diagram.
Minimum value of analog in-
put signal not correctly para-
meterized.
Check parameters.
Set "Analog Val. [%] Tap Pos. Min." pa-
rameter.
9.5
9.6
Summary of Contents for tapcon 240
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