FMS EMGZ622A, Руководство по эксплуатации

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Operating Manual EMGZ622A/642A
37
16 Trouble Shooting
If the electronic unit detects an error, a digital output and / or an LED on the operating panel is
activated. If the dig. output resp. the LED is parametrized to
Error (ref. to Config. of LED,
Dig. Out1/2 ).
If the dig. output resp. the LED is parametrized to Ok , the dig. output and / or the LED is
turned off. In addition, the error state can be read by the interface.
Error Cause Corrective action
Display shows
not determinable
A function can’t be performed
at that time (i.e. wiring error) Check wiring, parametrization and overall
system shape
Feedback value of
Offset badly adjusted Proceed again for offset adjustment of
channel n
channel n is > 0 even
though material is loose Current output is set to
4...20mA Adjust channel parameter config. output if
a signal 0...20mA is required
If current output shows
10...12mA: Jumper for tension
output is set wrong Set jumper for tension output of channel n
to 0...10V
Feedback value of
channel n is < 0 even
though material is loose Jumper for tension output is set
wrong Set jumper for tension output of channel n
to 0...10V
Feedback value of
channel n is not stable
Cut off frequency of the filters
set too high Adjust cut off frequency (ref. to „8.4
Additional Settings“)
even though material
tension Grounding (PE) not connected Connect grounding (PE)
doesn’t change Electrical interference on the
cable to the force sensor Check connection of the shield. Use one
twisted pair for +signal and –signal (ref.
to „7.3 Mounting the force sensors“)
Feedback value of
Gain badly adjusted Proceed again for sensor calibration of
channel n
channel n does not
correspond with the If gain switching is used:
Wrong gain value used Switch the dig. input used for gain
switching
effective material tension
Output signal wrong scaled Set channel parameter scale output to an
appropriate value
Sensor excitation set wrong Check solder bridges for sensor excitation
of channel n (ref. to „14.2 Jumper for the
Analog Inputs / Outputs“)
Sensor signal level set wrong Check solder bridges for sensor signal of
channel n (ref. to „14.2 Jumper for the
Analog Inputs / Outputs“)
If using 6 wire circuit: Solder
bridges set wrong Check solder bridges for 6 wire circuit of
channel n (ref. to „14.2 Jumper for the
Analog Inputs / Outputs“)