Function And Terminal Description; Parameterization - Siemens SIMOVERT Master Drives 6SE70 Betriebsanleitung

09.02
9.5.3

Function and terminal description

See circuit diagram in Section 3.5 "Single-line diagrams with suggested circuit arrangements".
Function
RS485 serial interface
(SST2)
The bus termination resistors required for peer-to-peer mode are installed on the module::
• 150Ω between terminal X117-1 and terminal X117-2
• 390Ω from terminal X117-1 to +5V supply
• 390Ω from terminal X117-2 to ground
9.5.4

Parameterization

The following parameters influence the function of the SST2 interface for the basic unit (for details see Section
5.12):
P681 (i001 to i005)
P684.i003
P686.i003
P687.i003
P688
Parameterization for "12-pulse mode" see Section 3.8.3.
Siemens AG 6SE7087-6AK85-0AA0
Common Rectifier Operating Instructions
Terminal
X117-1
X117-2
X117-3
X117-4
X117-5
Selection of process data for transmission
Baudrate
Number of net data words for peer-to-peer link
Telegram failure time
Selection of the protocol
Connected values / Description
RS485R + receive cable RS485 positive
RS485R - receive cable RS485 negative
RS485T+ send cable RS485 positive
RS485T- send cable RS485 negative
Signal earth
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Options
9-7