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コントロールユニット Bender LINETRAXX MRCDB423のPDF マニュアルをオンラインで閲覧またはダウンロードできます。Bender LINETRAXX MRCDB423 20 ページ。 Modular residual current device type b for additional protection (protection against indirect contact) in earthed systems (tn and tt systems)

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Bender LINETRAXX MRCDB423 マニュアル
Function
2.7

Time delays t and t

The times t and t
described below delay the signalling of prewarning and main alarm via LEDs
on
and the output relays.
2.7.1 Start-up delay t
After the supply voltage U
the output relays K1 and K2 are open and the installation is switched off. This parameter cannot
be adjusted.
2.7.2 Response delay t
When exceeding a response value I
the alarm. A set response delay t
and delays signalling.
(Total delay time t
an
If the fault does not persist during the response delay, the alarm is not signalled.
i
If I
is set to 30 mA (personal protection), the response delay t
Δn2
and invariably set to 0 s.
2.8

External, combined test or reset button T/R

Reset = pressing the external button briefly (< 1 s)
Test
= pressing and holding the external button (> 2 s)
The device function can be tested using the test button "T".
2.9

Device parameter settings

The device parameters are set via the control buttons on the front. The device parameter settings
are password-protected.
8
MRCDB423_D00396_01_M_XXEN/06.2021
on
has been switched on, the device is in alarm state, which means that
s
on1/2
, the MRCDB423 requires the response time t
Δn1/2
(0...10 s) is added to the device-specific operating time t
on1/2
= t
+ t
).
ae
on
to output
an
of K2 is automatically
on2
ae