Siemens SINUMERIK 840C Installation Instructions Manual page 424

10.94
50
4 x rated motor
Input of speed at which switchover from the 1st torque limit (MD 39) to the 2nd torque limit
(MD 41) takes place. This switchover is implemented only if the appropriate bit has been set in
the PLC control word and the switchover speed set in MD 50 has been exceeded.
52
Note:
This machine data is not included in the machine data lists. During start-up in machine data
dialog, the machine data is set or altered as appropriate via the configuration setting.
The machine data can be saved from the RAM to the FEPROM by setting this machine data to
the value 1 H.
53
A range of control functions can be selected and altered by entering bit patterns in the control
word.
Selection of bits:
Not assigned
Ramp-function generator
rapid stop
Not assigned
Speed setpoint smoothing
Not assigned
Inverter pulse frequency
Division interrupt
error message
Ramp-function generator
automatic control
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Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
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Switching speed from M
Default value Lower input limit
speed
Transfer machine data to FEPROM
Default value Lower input limit
0000
Default value Lower input limit
0000
Bit 0
Bit 1
Bits 2-3
Bit 4
Bits 5-8
Bits
9-10
Bit 11
Bit 12
ManualsBase.com
7 Drive Machine Data (SIMODRIVE Drive MD)
to M
d1 d2
Upper input limit
Maximum motor
0
speed
Upper input limit
0000 0001
Control word
Upper input limit
0000 FFFF
0: The motor remains connected to the supply after
shutdown by the ramp generator rapid stop
function
1: The motor is isolated from the supply when the
speed drops below the internal n
after shutdown by the ramp generator rapid stop
function
0: Function is active only if the appropriate bit has
been set in the PLC control word
1: Function is always active
Bit 9 = 0 and bit 10 = 0 : Selection of 3.44 kHz
Bit 9 = 0 and bit 10 = 1 : Selection of 4.95 kHz
Bit 9 = 1 and bit 10 = 0 : Selection of 6.60 kHz
Bit 9 = 1 and bit 10 = 1 : Selection of 8.11 kHz
0: Message is displayed
1: Message is concealed
0: Ramp-function generator automatic control active
1: Ramp-function generator automatic control
deactivated
6FC5197- AA50
7.1.2 MSD MD (data description - SW 3)
Active
motor 1
at once
Units
rev/min
Active
at once
Units
Hex
Active
at once
Units
Hex
speed value
min
7–9