COMEM eBR Bedienungsanleitung Seite 6

Scheme Alarm level
(4)
F NO
(1)
I NO
R NC
Z C.O.
K NO
Q NC
S NO
W C.O.
X NC
U C.O.
Notes
(1) NO: normal open contact
(2) NC: normal closed contact
(3) C.O.: change over contact
(4) For other specific electrical scheme please contact COMEM
Table 1
Standard
Scheme F
24 VDC (+) 2
24 VDC (-) 1
RS485 (B) 3
RS485 (A) 4
GROUND
4-20mA (+) 41
4-20mA (-) 42
LEVEL ALARM -
21
22
FLOW VANE ALARM 31
32
TRIP -
11
12
LEVEL TRIP -
-
Table 2
• Power supply (terminals 1-2): 24 Vdc ±10% polarized
• Analog output (terminals 41-42): 4-20 mA - Minimum /
Maximum resistance: 100 / 470 Ω
• Digital output (terminals 3-4): RS485
6
Alarm Speed
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
I R Z
2 2 2
1 1 1
3 3 3
4 4 4
41 41 41
42 42 42
24 24 24
12 - 21
- 22 22
31 31 31
34 32 32
21 14 14
22 - 11
- 12 12
14 - -
11 - -
Trip Analog output
NO Available
2xNO Available
NC Available
C.O. Available
NC Available
(2)
NO Available
C.O. Available
(3)
NO Available
C.O Available
NC Available
Special
K Q S
2 2 2
1 1 1
3 3 3
4 4 4
41 41 41
42 42 42
- 24 -
21 - 21
22 22 22
31 31 31
32 32 32
14 - 14
- 11 11
12 12 12
- - -
- - -
ELECTRONIC BUCHHOLZ RELAYS eBR
MODBUS RTU
Available
Available
Available
Available
Available
Available
Available
Available
Available
Available
W X
2 2
1 1
3 3
4 4
41 41
42 42
24 24
21 -
22 22
31 31
32 32
- 14
11 11
12 12
- -
- -
U
2
1
3
4
41
42
24
21
22
31
32
14
-
12
-
-