Siemens SINUMERIK 840C Installation Instructions Manual page 453

7 Drive Machine Data (SIMODRIVE Drive MD)
7.1.2 MSD MD (data description - SW 3)
255
Default value
–
Display of high word in drive control word
Value table:
Bit 0-2 New active parameter set/gear stage
Bit 3 Motor switchover (star-delta switchover)
Bit 4 Not assigned
Bit 5 Motor switchover complete
Bit 6 Speed controller I-component = zero
Bit 7 Pulse enable
Bit 8 Current controller enable
Bit 9 Speed controller enable
Bit 10-11 Operating mode
Bit 12 Not assigned
Bit 13 Travel to fixed stop
Bit 14 Not assigned
Bit 15 Sign of life from NC
258
Speed for max. motor operational speed motor 2
Default value
Maximum motor
speed
Machine data MD 258 defines the maximum operating speed of the main spindle motor. It acts
as the reference value of the speed setpoint interface.
Note:
The velocity of a main spindle is matched in NC-MD 4030 (maximum spindle speed). The
motor operating speed which corresponds to this maximum value must be entered in drive-MD
258. Allowance is made for any existing gear ratios in the relationship between NC-MD 4030
and drive-MD 258.
7–38
Display of active functions 2
Lower output limit Upper output limit
–
Lower input limit Upper input limit
Maximum motor
–
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Siemens AG 1992 All Rights Reserved
Units
– Hex
0: Not active
1: Active
Units
rev/min
speed
6FC5197- AA50
SINUMERIK 840C (IA)
10.94
Active
at once
Active
at once