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4 Communications via PROFIBUS–DP
4.2 Process data (PZD area)
4.2.1
Description of the control signals (data to drive)
Control word
(STW)
(pos mode)
Table 4-4
Structure of control word STW for the pos mode
Open holding brake/close holding brake (from SW 1.4)
Read–in enable/no read–in enable
Bit
15
14
13
Note:
1 signal/0 signal
Note:
S
The signals designated in this way must have at least a "1" signal in order to be able to
operate a motor.
Furthermore, STW.8 or STW.9 must be set to "1" for jogging 1 or 2.
Table 4-5
Description of the individual signals in the control word (STW) for the pos mode
Bit
Signal name
0
ON/OFF 1
1
1
Operating condition/OFF 2
Operating condition/OFF 2
4-104
The master issues its commands to the slave using the control word (STW).
External block change/no external block change
Automatic single block operation/automatic
Start referencing/stop referencing
Control requested/no control requested
12
11
10
9
Reset the fault memory
Activate traversing task (edge)
Operating condition/intermediate stop
Operating condition for positioning/stop
Enable operation/disable operation
1
ON
Ready
0
OFF 1
Shutdown, decelerating along the down ramp, power dis-
connected, tracking operation.
1
Operating Condition
Ready
0
OFF 2
The power is disconnected and the motor coasts down, pow-
er–on inhibit
SIMODRIVE POSMO A User Manual (POS1) – 08/2013 Edition
Jogging 2 ON/jogging 2 OFF
Jogging 1 ON/jogging 1 OFF
8
7
6
5
4
Operating condition/OFF 3
Operating condition/OFF 2
Signal status, signal description
E Siemens AG 2013 All Rights Reserved
05.03
02.99
3
2
1
0
ON/OFF 1
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