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Manual – MOVIDRIVE® MDX61B Synchronous Operation Board DRS11B
6
Parameter descriptions
Parameter
6.3
Parameter descriptions
P22x Synchro-
nous operation
control
Synchronous operation control (only in parameter set 1).
P220 P gain DRS
Setting range: 1 ... 10 ... 200
Gain of the synchronous operation controller in the slave. This determines the control
response of the slave drive depending on the angle differentials in relation to the master
drive.
P221 / P222 Mas-
ter gear ratio factor
/ Slave gear ratio
factor
Setting range: 1 ... 3 999 999 999
These settings are only required with the slave inverter. These parameters set the
position measurement ratio between the master and slave. The ratio is entered as the
quotient of master to slave to include non-integer ratios.
Note that position measurement of the master and slave can only occur using the motor
encoders if there is positive power transmission (without slip). Position measure-
ment has to be via an additional encoder (external encoder) in all applications in
which power transmission between motor shaft and machine is by friction and thus slip
is to be expected. The encoder must be installed on the moving machine component
with a positive connection.
P223 Mode
selection
Setting range: 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8
Mode selection determines how the slave drive reacts to a free running signal.
•
Mode 1: Free-running unlimited, new reference point
– Free-running is active when a "1" signal is set at X40:1.
– The input terminals and setpoints of the slave drive are effective in free-running
mode.
– An angular offset generated in free-running mode is not processed when
synchronization is started again.
•
Mode 2: Free-running unlimited, offset is processed
– Free-running is active when a "1" signal is set at X40:1.
– The input terminals and setpoints of the slave drive are effective in free-running
mode.
– An angular offset generated during free-running mode is reduced to zero when
synchronization is started again.
•
Mode 3: Free-running unlimited, offset generated is pro P224
– Free-running is active when a "1" signal is set at X40:1.
– The input terminals and setpoints of the slave drive are effective in free-running
mode.
– During resynchronization, in addition to the offset, the old synchronous position
of the signed position offset in P224 is also reduced to zero.
•
Mode 4: Free-running limited by
P224 Slave counter
, generated offset is processed
– Free-running is activated via a "1" signal (>100 ms) at X40:1.
– The input terminals and setpoints of the slave drive are effective during free-run-
ning.
– Free-running ends when the angle differential entered in P224 has been reached.
The following functions cannot be activated or have no effect with option DRS11B:
•
Parameter set switchover
Switchover to parameter set 2 cannot be performed in operating modes VFC-n
CONTROL, CFC and SERVO in conjunction with synchronous operation.
•
P75_ Master/slave function
P6..
P60.
P600
