Manual 37140A
MFR 11 - Protection Relay
© Woodward
Page 11/80
Chapter 3.
Installation
Wiring Diagram Optional Models 100 Vac and 400 Vac
≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡
Standard
Standard
Iv
Yc
Measuring voltage L1
supervi
sed
s
ystem
Subject to technical modifications.
not measured
71
5
78
6
70
CB
72
70
71
72
1
Displacement voltage ue
via e-n-winding or
zero-point transformer
Blocking of watchdog function/
remote acknowledgement
0 Vdc
24 Vdc
Option N: 75..265 Vac + 90..300 Vdc
Synchronizing voltage L2
Synchronizing voltage L1
Synchronizing voltage L3
Measuring voltage
three-wire or
four-wire system
3
2
4
3
Measuring voltage L2
Measuring voltage L3
(Measuring voltage N)
Relay 4
Relay 5
Relay 6
Relay 8
(Option Yc + R: Synchro-Check)
Relay 7
+/- 10 V
Analog output 2
52
Po
ss
ible
co
mb
in
at
io
ns
: A
1/A
2/
A
3/
A
4+
S
..,
A
6,
A
8,
S.
.
+/- 10 V
MFR 1
1 (> version 3.
0xx; 100/400 V model)
A1
Relay 2
Relay 1
Relay 3
(Option Yc: Synchro-Check)
Standard
Analog output 1
Common 1 + 2
2003-03-24 | MFR 11 Wiring Diagram r13ww-1303-ap.skf
12
11
10
9
50
51
0
13
16
15
14
+/- 20 mA
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 20 mA
+/- 20 mA
+/- 10 V
+/- 10 V
+/- 10 V
+/- 10 V
+/- 20 mA
Interface
RS232, RS422, RS485
TTY, MOD bus slave
CAN bus, Profi bus DP
A6
Analog output 5
A2
A8
A4
A6
A3
A8
Analog output 3
Analog output 2
Analog output 1
Analog output 4
Analog output 3
Common 3 + 4
Analog output 4
Analog output 8
Analog output 7
Analog output 6
Analog output 5
Common 5 + 6
Common 7 + 8
S..
S..
A.., S..
Analog output 6
Al
te
rn
at
iv
el
y
55
53
0
52
54
55
50
51
53
54
0
0
0
A
lte
rnat
iv
el
y
0
81
82
83
81
82
83
84
85
86
0
00
0
X1
X2
X3
84
86
87
X4
X5
0
X6
Measuring voltage: 100 V AC or 400 V AC
The socket for the PC parameterization is situated
on the side of the unit. This is where the DPC
has to be plugged in.
R
27
21
20
19
22
26
25
24
23
28
32
31
30
29
Figure 3-1: Wiring diagram optional models 100 Vac and 400 Vac
