SEW MOVITRAC LTP series, Operating Instructions Manual

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Operating Instructions – MOVITRAC® LTP
23
5
Installation
Electrical Installation
Key information
on the control
terminal
• Maximum input voltage on any terminal: DC 30 V
• All outputs are short circuit proof
• Recommended potentiometer resistance: 1 k
Ω
• Digital input response time < 8 ms
• Bipolar analog input response time < 16 ms. Resolution
±
12-bit (0.025 %)
• Second analog input response time < 16ms. Reso11-bit (0.05 %)
• Analog / digital output response time < 16ms. Resolution 8-bit (0.25 %)
5.2.5 RJ11 Communication socket
The RJ11 communication socket can be used to set up a RS-485 communication to the
PC via UWS11A.
With MOVITRAC
®
LTP units it is possible to use this RJ11 connector to set up a
MODBUS communication network.
The internal bus works with 115 k Baud (bps). It can be used for drive-to-drive commu-
nication. In this case, up to 63 drives can communicate.
The MODBUS RTU works between 9,6 and 115 k Baud (bps). It can be used to com-
municate directly with an external PLC or with a fieldbus gateway. In this case, up to 63
drives can be controlled via bus communication.
57406AXX
[1] RS-485– / MODBUS
1)
1) The bit format is fixed as: 1 start bit, 8 data bits, 1 stop bit, no parity
[2] RS-485+ / internal bus
1)
[3] RS-485– / internal bus
1)
[4] +24 V
[5] 0 V
[6] RS-485+ / MODBUS
1)
[2]
[3]
[4]
[5]
[6]
[1]