Siemens SIMODRIVE POSMO A User Manual

2
2.3 Connection and wiring overview
2-49
E Siemens AG 2013 All Rights Reserved
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
The following must be taken into consideration for the bus termination
at the PROFIBUS–DP in connection with the ”DP Slave POSMO A”:
S The terminating resistor must be switched–in at the first and last bus
nodes.
S Is the ”DP slave POSMO A” the first or last bus node?
– If yes?
––> The bus termination must be switched–in using switch S1
(refer to Table 2-2).
––> The bus termination that is switched–in is only
effective if the electronics power supply of the positioning
motor is switched–on and the connection cover is inserted.
– If no?
––> The bus termination must be switched–out using switch S1
(refer to Table 2-2).
S If it must be possible, with bus communications still operational, to
power down the SIMODRIVE POSMO A positioning motor without
resulting in errors, then the following applies:
– This ”DP slave POSMO A” may neither be used as the first nor
last bus node.
– For this ”DP slave POSMO A”, the bus termination must be
switched–out using switch S1 (refer to Table 2-2).
– Recommendation: Use an active bus terminating resistor
The ”active RS485 terminating element” bus component has its
own 24 V supply voltage and can terminate the bus indepen-
dently of the DP slave.
Order No. (MLFB): 6ES7972–0DA00–0AA0
Bus termination
for PROFIBUS
2 Installing and Connecting–Up
02.9902.00

Siemens SIMODRIVE POSMO A Specifications

General

Brand	Siemens
Model	SIMODRIVE POSMO A
Category	Engine
Language	English