Siemens SINUMERIK 840C Installation Instructions Manual page 497

7 Drive Machine Data (SIMODRIVE Drive MD)
7.3.2 Drive MD (data description)
Notes:
• The pulse frequency can be specified only in the quantization given in the table above.
Other frequency inputs are rounded up or down to the next closest table value, e.g. 3150
Hz to 3200 Hz.
1101
Default value
62
The calculation dead time is the time which elapses between the start of a current control
clock cycle (input of current setpoint) and the activation of the control voltage setpoints on the
gating unit ASIC. The standard default value is automatically loaded during initial start-up when
machine data M1102 is input. As from software version 5 the default value is automatically
loaded during initial start-up and with the function "Calculate controller data" on the basis of
given configuration (1 axis/2 axis FDD/MSD etc.). In order to make the setpoints on all power
sections "valid" simultaneously (to achieve uniform dynamic response), the time required to
calculate the most complex axis (double axis) is entered.
Note:
Limits of calculation dead time
MD 1101 < MD 1000 (=current controller clock cycle)
MD 1101 <
Module:
Complete module
6SN1130 - 1 DAXX - XXXX
6SN 1130 - 1 DBXX - XXXX
1
–––––––––––
<
MD 1100
Controller components
Standard
6SN1118 - X DM XX - XXXX
_______
* A preselection with synchronous sampling period (T
via the toggle button.
7–82
More user manuals on
Calc. dead time current closed-loop
Lower input limit
0
1 T
PBM
––––––––––– –––––
=
4 x MD 1100 4
= T
PBM
Default: 100 µs
ManualsBase.com
Upper input limit
124
for 611 D hardware
Drive module
6SN11XX - ODC 1X - XXXX
6SN11XX - ODH 1X - XXXX
Default: 62 µs
for 611 D hardware standard/performance
Performance
6SN1118 - XDG2X - XXXX
6SN1118 - XDH2X - XXXX
Default: 62 µs
) with respect to the controller cycles can be made
PWM
©
Siemens AG 1992 All Rights Reserved
04.96
Active on
Power On
Units
µs
6FC5197- AA50
SINUMERIK 840C (IA)