Siemens SINUMERIK 840C Installation Instructions Manual page 572

07.97
1702
This machine data is used to display the motor temperature. The motor temperature is
measured by appropriate sensors and evaluated in the drive.
1703
This machine data is used to display or diagnose the lead time for the motor measuring
system converters. A converter lead time is required if the converter times are greater than the
ASIC cycle time. This machine data is valid only for indirect measuring systems.
1704
This machine data is used to display or diagnose the lead time for the motor measuring
system converters. A converter lead time is required if the converter times are greater than the
ASIC cycle time. This machine data is valid only for direct measuring systems.
1705
Voltage setpoint display. The signal can be output via DAC.
MD 1705 =
1706
This machine data is used to display the speed setpoint which represents the unfiltered
summation setpoint. It comprises the component of the position controller output and the
speed feedforward control arm. Time-synchronous unlatching (scanning) of machine data MD
1706, MD 1707 and MD 1708 is not provided. The appropriate machine data is unlatched by
the read request of the non-cyclical communications protocol.
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SINUMERIK 840C (IA)
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Default value Lower output limit
0
Lead time conver. motor meas. syst. (up to SW 4)
Default value Lower output limit
0
Lead time conversion dir. meas. sys. (up to SW 4)
Default value Lower output limit
0
Voltage setpoint (effective) (as from SW 6)
Default value Lower output limit
–
2 qset 2 dset
U + U
Default value Lower output limit
0.0 -100000.0
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7 Drive Machine Data (SIMODRIVE Drive MD)
Motor temperature
Upper output limit
0 32 767
Upper output limit
0 32 767
Upper output limit
0 32 767
Upper output limit
– –
Speed setpoint
Upper output limit
100000.0
6FC5197- AA50
7.3.2 Drive MD (data description)
Active
at once
Units
°C
Active
at once
Units
µs
Active
at once
Units
µs
Active
at once
Units
V (line-to-line)
eff
Active
at once
Units
rev/min
7–157