Malfunctions; Recurring Inspections - Bender COMTRAXX CP305 Manual

Cleaning, servicing and troubleshooting
15.5

Malfunctions

List of possible errors and proposals for the correction of the faults. This error list does not claim to be
exhaustive.
No indication on the display of the CP305
No indication on the display, but the display is
illuminated.
LEDs do not light up
Time is reset to zero in case of short-term voltage failure.
Error on internal BMS bus
Digital input function error
15.6

Recurring inspections

The following periodic verification must be performed on electrical installations in compliance with the local or
national regulations that apply. For your Bender products, we recommend:
Functional test of the IT system monitoring (insulation, load current, transformer
temperature and connection monitoring):
Press the "TEST" button on the device display once; close the pop-up when
finished.
Functional test of the changeover device*: functional test of the automatic
transfer switching devices. The instructions in chapter "Test of the changeover
device" (changeover device manual) must be observed.
Functional test of the IT system monitoring (insulation, load current, transformer
temperature and connection monitoring) on the insulation monitoring device.
Checking the setting values and changeover periods.
54 CP305_D00425_02_M_XXEN/07.2023
Error
Action
Possible cause/actions
Check the AC/DC 24 V power supply.
Replace CP305
Replace CP305
Replace CP305
Address of devices incorrectly set on internal bus;
interface lines A/B are interchanged; the network was
incorrectly or not terminated; faulty parameter setting
Digital inputs not correctly set. Defective connection
(does not match pre-assignment). Incorrect setting
"neutral/medical".
Carried out by Interval
Med. Once every
personnel working day
Electrically Every 12
skilled person months
Electrically Every six
skilled person months
Electrically Every 12
skilled person months