7 Drive Machine Data (SIMODRIVE Drive MD) 10.94
7.1.2 MSD MD (data description - SW 3)
Selection I/f control
313
Default value Lower input limit Upper input limit Units
0 0 1 Hex
Active
at once
The I/f control diagnosis aid is activated by entering bit 0 = 1. This control is used to check
encoder faults. A variable speed (without encoder evaluation) can be specified via MD 311
(current) and MD 312 (frequency).
Bit 0 Activate I/f control
Bit 1-15 Not assigned
Display P-gain current controller
316
Default value Lower output limit Upper output limit Units
– – – –
Active
at once
Display machine data for the current controller P gain. The current controller P gain is
calculated according to the motor, converter and converter switching frequency and can be
corrected by an offset in machine data MD 116 (P-gain current controller motor 1) and MD 278
(P-gain current controller motor 2). The resulting value is displayed in MD 316. When the star-
delta switchover function is enabled, the display is referred to the currently active operating
mode.
Creep speed angle controller
337
Default value Lower input limit Upper input limit Units
300 0 600 rev/min
Active
at once
Input of creep speed of angle controller. At speeds above the value entered here, the I-action
component of the phase current controllers is disabled and the angle controller of the FCS
(Frequency-Compensated Spindle drive) control enabled.
Hysteresis MD 337
338
Default value Lower input limit Upper input limit Units
25 0 256 rev/min
Active
at once
Input of hysteresis for creep speed in MD 337. The value corresponding to half the hysteresis
width in rev/min must be entered.
Data version
399
Default value Lower output limit Upper output limit Units
– 0 65 535 –
Active
at once
Display machine data for the data version of the machine data set.
7–46 ©
Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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