User Manual 08/2003 Edition

02.99 05.03
Siemens AG 2003 All rights reserved
SIMODRIVE POSMO A User Manual (POS1) – 08.03 Edition
4.2 Process data (PZD area)
Table 4-11 Description of the signals in the status word (ZSW) for the n–set mode, continued
Bit Signal name
Signal status, signal description
15
Load power supply available/
load power supply failed
1 Load power supply available
4 Communications via PROFIBUS DP
0 Load power supply failed
This corresponds to the ”undervoltage” fault
Note:
When an undervoltage condition is detected, the appropriate
fault is signaled and ZSW.15 is set to ”0”.
Before SW 1.3 the following applies:
ZSW.15 is set to ”1”, if, when acknowledging the fault,
an undervoltage condition is no longer detected.
The following is valid SW 1.3:
ZSW.15 is set to ”1” if an undervoltage condition is no
longer detected.
The fault itself remains until it is acknowledged.
ZSW.15 indicates the status of the load power supply,
independent of the fault and acknowledgment.
4-105
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