Acromag 901MB, User Manual

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BusWorks

Model 903MB/902MB/901MB Network I/O Module User’s Manual Digital I/O
___________________________________________________________________________________________
- 28 -
T
B
2
D
11
E
X
C
1
46
C
O
M
12
C
H
0
45
C
H
1
1
14
C
H
2
43
C
H
9
15
C
H
3
42
C
H
8
T
B
4
22
C
H
4
35
C
O
M
23
C
H
5
34
25
C
H
7
32
26
C
O
M
31
CH 3
CH 0
T
B
1
RS485
D
COM
CH 1
CH 2
EXC1
TB1
13 16
C
H
1
C
O
M
44 41
C
H
1
0
E
X
C
3
TB2
21 24
E
X
C
2
C
H
6
36 33
C
O
M
T
B
3
TB3
OR 24VAC
NON-POLARIZED
10 TO 36VDC
DC/AC
POWER
N
ET
W
O
R
K
C
O
N
N
EC
T
IO
N
S
(SEE
D
R
AW
IN
G
4
5
0
1
-8
0
5
)
0-35V DC
SHIELDED CABLE
(SEE DRAWING 4501-823)
Model 906MB-0900
DIGITAL IN or OUT PWR
GROUND
DE-ENERGIZED CONDITION.
EARTH GROUND
(SEE NOTE 1) EARTH GROUND
(SEE NOTE 1)
DIODE
+
TB1
DC EXCITATION
I/O CONNECTIONS
DIGITAL IN or OUT DIGITAL IN or OUT
(Model 905MB-0900 Similar)
TB4
EARTH
CONTACT PROTECTION
1N4006 OR EQUIVALENT
(SEE NOTE 2)
I/O CONNECTIONS
NOTE: ALL RELAY CONTACTS SHOWN.
TYPICAL DIN-RAIL MOUNTED RELAY IN
LOCATE RELAY NEAR LOAD
SHIELDED CABLE
NOTE 1: RETURNS SHOULD BE CONNECTED TO EARTH GROUND
AT THE SAME POINT TO AVOID CIRCULATING GROUND CURRENTS.
NOTE 2: DIODE ADDED LOCAL TO INDUCTIVE LOAD TO SHUNT THE
REVERSE EMF THAT IS GENERATED WHEN CURRENT THROUGH
THE INDUCTOR (RELAY COIL) IS TURNED OFF.
LIMIT I/O LOAD
CURRENT TO
250mA MAXIMUM
IMPORTANT - OBSERVE PROPER POLARITY
MODEL 905MB-0900 & 906MB-0900
NOTE 3: MODEL 906MB & 905MB UNITS INCLUDE INTERNAL SOCKETED
PULL-DOWN RESISTOR SIPS TIED TO THE OUTPUTS. YOU SHOULD
REMOVE THESE RESISTOR SIPS FOR APPLICATIONS WIRED AS SHOWN.
I/O CHANNELS
SHARE COMMON
NOTE: REMOVE
INTERNAL I/O
PULL-DOWN
(NOTE 3).
4501-814B
INTERPOSING RELAY CONNECTIONS
WITH SOURCING OUTPUTS
6
4
5
3
7
8
1
2
NOTE: ALL DIMENSION ARE IN INCHES (MILLIMETERS)
MODEL 903MB ENCLOSURE DIMENSIONS
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
RUN
Acromag
4
.6
8
ST
DFT
2
.3
4
(5
9
.4
)
10
L
C
3
.7
5
(9
5
.3
)
0 1
2 3
4 5
7 6
8 9
11
R
D
IG
IT
A
L
C
H
A
N
N
E
L
S
DIGITAL IN or OUT
T
B
1
11
E
X
C
1
12 13 14
C
H
0
C
H
1
C
H
2
R
T
N
16 15
C
H
3
(1
1
8
.9
)
C
H
5
C
H
4
E
X
C
2
23 22 21 T
B
2
DIGITAL IN or OUT
R
T
N
24 25 26
C
H
6
C
H
7
46
DIGITAL IN or OUT
R
T
N
41 42 43 44
C
H
8
C
H
9
C
H
1
1
C
H
1
0
E
X
C
3
45
TB4 TB3
36 34 35
T
B
4
D
C
O
M
C
O
M
RS485
32 31 33
B A
PWR
D
T
B
3
TB1
3.90
(99.1)
4.35
(110.5)
TB2
4501-815A