Computer Drive Installation Instructions

7 Drive Machine Data (SIMODRIVE Drive MD) 10.94
7.1.2 MSD MD (data description - SW 3)
Display of active functions 2
255
Default value Lower output limit Upper output limit Units
– – – Hex
Active
at once
Display of high word in drive control word
Value table:
Bit 0-2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10-11
Bit 12
Bit 13
Bit 14
Bit 15
New active parameter set/gear stage
Motor switchover (star-delta switchover)
Not assigned
Motor switchover complete
Speed controller I-component = zero
Pulse enable
Current controller enable
Speed controller enable
Operating mode
Not assigned
Travel to fixed stop
Not assigned
Sign of life from NC
0: Not active
1: Active
Speed for max. motor operational speed motor 2
258
Default value Lower input limit Upper input limit Units
Maximum motor
speed
–
Maximum motor
speed
rev/min
Active
at once
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 ©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)