Datakom DKM-411, Руководство пользователя, Страница: 90 / 91

DKM-411 User Manual Rev_01 Firmware V-1.0
K46D03-EN - 90 -
No display:

External fusing for the power supply voltage has tripped. Switch fuse on or replace fuse.

Incorrect auxiliary supply voltage, check voltage at power supply terminals.

Incorrect power supply polarity for DC supply versions.

Device is defective. Send device to the manufacturer for repair.
Incorrect voltage display:

Measured voltages are not connected. Connect measuring-circuit voltages.

Important! Ensure the measurement inputs are not overloaded.

The voltage measuring range has been exceeded. Check device ratings.

The voltage measuring range has been exceeded by harmonic components. Check harmonics.

Connect voltage transformer if necessary.

Incorrect phase connections. Check wiring.

Voltage transformer ratio incorrectly programmed. Check program parameter and voltage
transformer.

Device is defective. Send device to the manufacturer for repair.
Incorrect current display:

Measured currents are not connected. Connect measuring-circuit current inputs.

Important! Ensure the measurement inputs are not overloaded.

The current measuring range has been exceeded. Check device ratings.

The current measuring range has been exceeded by harmonic components. Check harmonics.

Incorrect phase connections. Check wiring.

Current transformer ratio incorrectly programmed. Check program parameter and current
transformer ratings.

Device is defective. Send device to the manufacturer for repair.
Below is a basic list of most often encountered
troubles. More detailed investigation may be
required in some cases.
38. TROUBLESHOOTING GUIDE