Siemens SINUMERIK 840C Installation Instructions Manual page 561

7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
1636
Drive operating modes Emergency retraction
Default value
0
Input to select various operating modes in the drive operating modes word. It defines 8
operating modes for the following cases of failure:
– Sign-of-life failure
– DC-link voltage < MD 1633 or MD 1631
– Activation of the autonomous drive emergency retraction through the NC
Table Drive operating modes Emergency retraction
Value input
0 Normal mode
1 Monitoring mode
2 Delayed regenerative braking
3 Delayed regenerative braking only with sign-of-life failure
4 Emergency retraction
5 Emergency retraction only with sign-of-life failure
6 Generator operation with possible return to normal mode
7 Generator operation without possible return to normal mode
This machine data is relevant only for Siemens-internal purposes and must
1637
Default value
0
Input of the time delay by which regenerative braking is delayed in the case of a failure.
This machine data is relevant only for Siemens-internal purposes and must
Input of the emergency retraction time, for which the emergency retraction speed (MD 1639) is
given as setpoint speed in the case of a failure.
7–146
Lower input limit Upper input limit
0
Operating mode
not be altered.
Delay time regenerative braking
Lower input limit Upper input limit
0
not be altered.
©
Siemens AG 1992 All Rights Reserved
Units
7
Units
10000 ms
6FC5197- AA50
SINUMERIK 840C (IA)
04.96
Active
at once
-
Active
at once