Bender MRCDB423 Series - Page 9

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MRCDB423_D00396_00_M_XXEN/06.2020
MRCDB423
6. Setting ranges, factory settings, LEDs
6.1 Setting parameters
Tab. 3: Setting parameters
6.2 Meaning of the LEDs
Fig. 2: Meaning of the LEDs
7. Measuring current transformers
7.1 Product description
CTUB101-CTBCxx series measuring current transformers in combination with MRCDs convert AC and DC cur-
rents into an evaluable measuring signal. They can be used in DC, AC, and 3(N)AC systems.
The shielded measuring current transformers of the CTUB101-CTBCxxP series also feature a magnetic shield.
Menu Parameter Description Setting range
Factory
setting
AL
I2 > Response value I2; "Greater than" comparison 30 mA…1.0 A 30 mA
I1 > Response value I1; "Greater than" comparison 50…100 % 50 %
t
ton 1 Response delay output relay 1 0…10 s 1 s
ton 2 Response delay output relay 2 0…10 s 0 s
Set
Password for parameter setting off/0…999 on
FAC Restore factory settings YES / no no
SYS Servicemenu (locked) 0…999 -
InF - Display software version
HiS - Display memory for the first fault
Meaning ON AL TRIP
Error message (system error)
Prewarning I
Δn1
reached
Message Test
or
Residual operating current I
Δn2
reached