Connection to RS485 Bus
Connection to ATS48
Connection accessories should be ordered separately (please consult our catalogues).
Connect the RJ45 cable connector to the ATS48 connector 1.
RJ45 connector
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1
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Connection to RS485 Bus
Example of connection
Various accessories are available from the Schneider Automation catalogue to aid connection of equipment.
Connection to TSXSCA62 and TSXSCA50 boxes is one example of the different Modbus connection options
(please consult our catalogues).
- Shielded double twisted pair cable:
TSXCSA100 (100 m)
TSXCSA200 (200 m)
TSXCSA500 (500 m)
- TSXSCA62 2-channel subscriber
socket:
This passive box enables connection to 2 screw terminals and
2 female 15-pin SUB-D connectors. It includes the line termination,
required when the socket is located at an end of the line.
- TSXCAS0 junction box:
This passive box enables connection to 3 screw terminals. It
includes line termination.
- Drop cable:
VW3A8306, length 3 m, fitted with 2 connectors (RJ45 and male
15-pin SubD).
VW3A8306D30, length 3 m, fitted with one RJ45 connector, the
other end stripped.
TSXSCA62
TSXSCA50
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TSXCSA¥00
VW3A8306
PC
VW3A8306D30
Altistart 48
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Altistart 48
Altistart 48
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Connection to RS485 Bus
Wiring recommendations
•
•
•
•
•
Use a shielded cable with 2 pairs of twisted conductors
Connect the reference potentials (0V) to one another
Maximum length of line: 1000 metres
Maximum length of tap-off: 20 metres
Cable routing: Keep the bus away from the power cables (at least 30 cm) with any crossovers at right-angles
if necessary, and connect the cable shielding to the ground of each device.
• Fit a line terminator at both ends of the line.
120 ¾
D(A)
Line termination recommended at both ends of the line
1 nF
D(B)
• Each ATS48 integrates two 4.7 kohm pulldown resistors which improve bus immunity.
If the master is also fitted with 4.7 kohm pulldown resistors, up to 27 starters can be connected.
If the pulldown resistors on the master are 470 ohm, up to 18 starters can be connected.
Pinouts
• VW3A8306 cable for TSXSCA62
RJ45
RJ45
D (B) 4
D (B)
4
14
D (A) 5
D (A)
5
7
0V
8
15
10 V
7
0V
8
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Male 15-pin SUB-D
ENGLISH
• ATS48 socket
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