2.3.11 Error Codes; Alarm Assignment Of The Alarm Relays K1/K2 - Bender ISOMETER isoCHA425HV Manual

Function

2.3.11 Error codes

In the event of a device error the display shows the respective error code.
Overview of some error codes
Error code
PE connection error
The connection of "E" or "KE" to earth is interrupted.
E.01
Action: Check connection, eliminate error. The error code will be erased automatically once the
error has been eliminated.
System connection error
The internal resistance of the system is too high or the connection of "L1/+" or "L2/–" to the system
E.02 is interrupted. The terminals "L1/+" and "L2/–" are connected incorrectly.
Action: Check connection, eliminate error. The error code will be erased automatically once the
error has been eliminated.
Reversed polarity connection error
Terminals "L1/+" and "L2/–" are connected to the DC system to be monitored with reversed polarity.
E.03
Detection from U
Measurement error
Due to system interferences or a device error, the insulation measured value is no longer updated.
Prewarning and alarm are set for the insulation measured value at the same time.
E.05
Calibration invalid after software update
"E.05" appears together with "E.08": The software is not compatible to the calibration of the device.
Action: Install the previous software version or have the device calibrated at the factory.
Permissible system leakage capacitance C
E.07 The device is not suitable for the present network leakage capacitance C
Action: Uninstall the device.
Calibration error
E.08
Action: Check connection, eliminate error. If the error is still present, there is a device error.
Internal device errors "E.xx" can be caused by external disturbances or internal hardware errors. If the error
message occurs again after the device has been restarted or after a reset to the factory settings (menu item
"FAC"), the device must be repaired. After the fault has been eliminated, the alarm relays switch back either
automatically or when the reset button is pressed. The self test can take a few minutes.

2.3.12 Alarm assignment of the alarm relays K1/K2

The notifications for "device error", "insulation fault", "undervoltage/overvoltage fault", "device test" and
"device start with alarm" can be assigned to the alarm relays via the "out" menu.
An insulation fault is indicated by these messages:
• "+R1" and "+R2": insulation fault assigned to conductor L1/+
• "–R1" and "–R2": insulation fault assigned to conductor L2/–
If an assignment to a conductor is not possible, e.g. due to a symmetrical insulation fault, the respective "+"
and "–" messages are set together.
14 isoCHA425HV_D00404_04_M_XXEN/10.2023
˂ DC –30 V
n
Meaning
exceeded
e
.
e