Siemens SINUMERIK 840C - Manual (Page 559)

7 Drive Machine Data (SIMODRIVE Drive MD) 07.97
7.3.2 Drive MD (data description)
Pickup delay variable message function 1625
Default value Lower input limit Upper input limit Units
0 0 10 000 ms
Active
at once
Input of ON (pickup) delay time for setting of the message if the threshold (with hysteresis) is
exceeded (see diagram under MD 1620).
Note:
Changes to machine data MD 1625 and MD 1626 (Delayed dropout variable message
function) has an effect on a time monitoring function which is already in progress. The
monitoring function is initialized with the newly entered time data.
Delayed dropout variable message function 1626
Default value Lower input limit Upper input limit Units
0 0 10 000 ms
Active
at once
Input of OFF (dropout) delay time for resetting of the message if the monitored quantity drops
below the threshold (with hysteresis) (see diagram under MD 1620).
Note:
Changes to machine data MD 1625 (Pickup delay variable message function) and MD 1626
has an effect on a time monitoring function which is already in progress. The monitoring
function is initialized with the newly entered time data.
Response threshold ZWK monitor only 1630
Default value Lower input limit Upper input limit Units
550 0 600 V
Active
at once
Input of response threshold of DC link voltage; if the voltage drops below this value, only the
DC link voltage is monitored (motor temperature monitoring is discontinued). If the voltage
rises above the threshold value again, then the normal monitoring function is resumed.
Note:
This machine data is described under the additional function "Extended shutdown and
retraction (G420...G426)", see Programming Guide 840C.
Response voltage generator axis 1631
Default value Lower input limit Upper input limit Units
450 280
570
650 (as from SW 6)
V
Active
at once
Input of response threshold of DC link voltage; if the voltage drops below this value, a drive
defined as a generator axis (MD 1636) switches over to generator mode.
Note:
This machine data is described under the additional function "Extended shutdown and
retraction (G420...G426)", see Programming Guide 840C.
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SINUMERIK 840C (IA)