84
UMG 806
www.janitza.com
15.6 Procedure in the event of a malfunction
Failure mode
Cause
Remedy
No display
External fuse for the supply voltage has
tripped.
Replace fuse.
No current display.
No measured voltage connected.
Connect measured voltage.
No measured current connected.
Connect measured current.
Displayed current is
too great or too small.
Current measurement on the wrong phase.
Check connection and correct if necessary.
Current transformer factor incorrectly pro-
grammed.
Read and program the current transformer
ratio on the current transformer.
Current harmonic exceeds current peak value
at measuring input.
Install current transformer with larger current
transformer ratio.
The current at the measuring input is too low.
Install current transformer with smaller current
transformer ratio.
Displayed voltage is
too high or too low.
Measurement on the wrong phase.
Check connection and correct if necessary.
Voltage transformer programmed incorrectly.
Read the voltage transformer ratio on the
voltage transformer and program.
Displayed voltage
is too low.
Overrange.
Use a voltage transformer.
The voltage peak value at the measuring input
was exceeded due to harmonics current.
Attention! Make sure that the measuring
inputs are not overloaded.
Incorrect display “Inductive/
capacitive phase shift”
Current path assigned to the wrong voltage
circuit.
Check connection and correct if necessary.
Active power consumed/deliv-
ered is reversed.
At least one current transformer connection is
reversed.
Check connection and correct if necessary.
One current path assigned to the wrong volt-
age circuit.
Check connection and correct if necessary.
Active power too small or too
great.
Incorrectly programmed current transformer
ratio.
Read and program the current transformer
ratio on the current transformer.
Current path assigned to the wrong voltage
circuit.
Check connection and correct if necessary.
Incorrectly programmed voltage transformer
ratio.
Read the voltage transformer ratio on the
voltage transformer and program.
An input/output is not re-
sponding.
Incorrectly programmed input/output.
Check programming and correct if necessary.
Incorrectly connected input/output.
Check connection and correct if necessary.
No communication with the
basic device
RS-485:
- Incorrect device address
- Different bus speeds (baud rate) and/or data
frames.
- Incorrect protocol.
- No termination.
- Correct the device address.
- Correct the speed (baud rate). Correct the data
frame.
- Correct the protocol.
- Terminate bus with termination resistor.
No communication with the
EC1 Ethernet module
- Incorrect device IP address
- Incorrect subnet mask
- Incorrect gateway
- Check and change the settings if necessary
No module communication
with the basic device
- Incorrect mounting of module to the basic
device
- Check the installation of the basic device and
the module
- Check the plug connections between the
device and the modules
Despite the above measures,
the device does not function.
Device defective.
Send the device and error description to the
manufacturer for inspection.
ATTENTION
Material damage due to overloaded measuring inputs!
Too high current and voltage values overload the measuring inputs and can damage the device.
·
Adhere to the limit values specified on the rating plate and in the technical data
·
Check your installation and connections!
Summary of Contents for UMG 806
Page 9: ...9 UMG 806 www janitza com...
Page 21: ...21 UMG 806 www janitza com...
Page 55: ...55 UMG 806 www janitza com...
Page 62: ...62 UMG 806 www janitza com 13 3 Front side views 13 3 1 806 EC1 module 13 3 2 806 ED1 module...
Page 81: ...81 UMG 806 www janitza com...
Page 85: ...85 UMG 806 www janitza com...
