Impulse SCMD-PB24 - Manual

(0.75)
19.1
(2.2) 55.9
Swaged
Standoff
thru Hole
(0.15) 3.2
Diameter
Nylon
Standoff
6/32 Thd.
6.4
(.25)
166.7 (6.6)
88.9
(3.50)
13 14 15 16 17 18 19 20 21 22 23 0 1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
MM (inches)
+ –
45.7
(1.8) 24 25
76.2
(3.00)
6.4
(.25)
356.9 (14.05)
344.1 (13.5)
1781-A24A
Discrete I/O Mounting Boards
31
Phone
(330) 762-
Fax:
(330) 762-
E-mai
SALES@
wrcakron.c
Webs
http://www
wrcakron.c
TM
S SPECIFICATION
The 1781-A24A mounting board can be used with up to 24, 1781-series slim modules. The terminal block accepts insulated wire
with stripped ends or ferrules. Each power side point is individually isolated from each other. The signal side has a common
logic supply bus (+Vcc and dc return) shared with each of the modules. Specify 1781-CxEx Cable Assembly. Specify 1782-A24A
for mounting on DIN rails, such as WRC50022. 1781-A24A is not available for DIN-rail mounting.
Power Side Signal Side Power Side Signal Side Power Side Signal Side
Bit Pos. Neg. Signal DC Return Bit Pos. Neg. Signal DC Return Bit Pos. Neg. Signal DC Return
Bit 0 1 2 47 48 Bit 8 17 18 31 32 Bit 16 33 34 15 16
Bit 1 3 4 45 46 Bit 9 19 20 29 30 Bit 17 35 36 13 14
Bit 2 5 6 43 44 Bit 10 21 22 27 28 Bit 18 37 38 11 12
Bit 3 7 8 41 42 Bit 11 23 24 25 26 Bit 19 39 40 9 10
Bit 4 9 10 39 40 Bit 12 25 26 23 24 Bit 20 41 42 7 8
Bit 5 11 12 37 38 Bit 13 27 28 21 22 Bit 21 43 44 5 6
Bit 6 13 14 35 36 Bit 14 29 30 19 20 Bit 22 45 46 3 4
Bit 7 15 16 33 34 Bit 15 31 32 17 18 Bit 23 47 48 1 2
NOTES:
1. Logic supply +Vcc (+5, +15 or +24 V dc) and dc return is supplied through the 2 terminal logic supply connector, marked with + or –.
2. Logic supply dc return is connected to all odd pins on the signal side.
3. Signal pin is pulled up to +Vcc when not asserted, down to dc return when asserted.
4. Power-side terminals are polarized for dc applications, and non-polarized for ac applications.
5. The backplane is shipped with a jumper configuration to supply the logic voltage through pin 49 of the edge connector.
SCHEMATIC DIAGRAM
356.9 (14.05)
166.7 (6.6) mm (in)
344.1 (13.5)
6.4
(.25)
6.4
(.25)
45.7
(1.8)
88.9
(3.50)
76.2
(3.00)
MOUNTING DIMENSIONS
3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
+
Bottom
Signal Side Mod le Inp t/O tp t Pull-up Resistor
Edge Connector
1A Logic
S pply F se
–
Logic
Supply
Barrier Strip
Fuse
5A
Typical
Top
LED
Typ.
All
Even
Pins
Logic
DC
Return
Jumper
JPR1
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
1 2
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
3
1
2
4
5
Power Side Module Input/Output
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
35
37
39
41
43
45
47
49
Edge
Connector
Power Side Module Input/Output
SCMD-PB24SM