Bender RCM420-D-2 B74014002 데이터 시트
제품 코드
B74014002
TDB401016en / Main catalogue part 4 – Residual current monitors, Residual current monitoring systems / 07.2010
25
4.1
Residual current monitor RCM420
Operating and display elements
1 -
Power On LED "ON" (green); lights when supply voltage is applied
and flashes in the event of system fault alarm respectively in
the event of CT malfunction.
the event of CT malfunction.
2 -
Alarm LED "AL1" (yellow), prewarning, lights when the set response
value I
Δn1
has been exceeded or flashes in the event of system
fault alarm respectively in the event of CT malfunction.
3 -
Alarm LED "AL2" (yellow), alarm, lights when the set response
value I
Δn2
has been exceeded and flashes in the event of system
fault alarm and in the event of CT malfunction.
4 -
Multi functional LC display
5 -
Test button "T": to call up the self test.
Arrow up button: parameter change, to move up in the menu
6 -
Reset button "R": to delete saved alarms.
Down button: parameter change, to move down in the menu
7 -
"MENU" button: to call up the menu system.
Enter button: confirm parameter change.
Press ESC: press the button > 1.5 seconds.
Press ESC: press the button > 1.5 seconds.
1
4
5
2
3
6
7
U
S
1 -
Supply voltage U
S
see ordering information,
(6 A fuse recommended)
2 -
Connection of the external measuring current transformer
3 -
Alarm relay K1:
Programmable for alarm I
Δn1
/ I
Δn2
/ TEST / ERROR
4 -
Alarm relay K2:
Programmable for alarm I
Δn1
/ I
Δn2
/ TEST / ERROR
5 -
Combined test and reset button "T/R"
short-time pressing (< 1.5 s) = RESET
long-time pressing (> 1.5 s) = TEST
long-time pressing (> 1.5 s) = TEST
*
when a shielded cable is used.
Do not route the PE conductor through the measuring current
transformer!
transformer!
Wiring diagram
1
2
*
3
4
5