Bender ISOMETER iso685-D-P User Manual

Alarm messages
iso685-D-P_D00170_00_M_XXDE/06.2016
80
16.2 Alarm messages of the EDS
Additionally, read the operating manual of the EDS.
Alarm message Description Measures Reference LED indicators
Insulation fault location
disturbed!
Interferences during insulation fault location
Possible causes:
• Low-frequency residual currents
• External magnetic fields
• Identify interference sources and eliminate them
insulation fault x mA
If an insulation fault is located, the message Insulation
fault 5 mA appears on the display. The level of the locat-
ing current gives information regarding the faulty out-
going circuit. The higher the locating current, the lower
the insulation resistance on the detected channel.
• Determine cause of the insulation fault and eliminate it.
Interference CT connec-
tion
A measuring current transformer has not been con-
nected correctly or does not work.
• Check wiring of the measuring current transformers
• Check device function
• Start new search for EDS channels
• Deactivate channel without CT
“Scanning channels”
on page 52 &
“Activating chan-
nels” on page 53
CT short circuit
Connection fault of CTs
Possible causes:
• Measuring current transformer defective
• Power supply cable short-circuited
• Replace defective measuring current transformer
• Check cables
Residual current
The set response value of the residual current has been
exceeded on one channel.
• Determine cause of the exceeded residual current and eliminate
fault.

Bender ISOMETER iso685-D-P Specifications

General

Brand	Bender
Model	ISOMETER iso685-D-P
Category	Measuring Instruments
Language	English