Omron CS1W-MCH71 MOTION CONTROL UNIT - 09-2004 Manual page 318

Command Details
Note
Electronic Shaft
(CONNECT)
Command type
Format
Operand
Operand Setting range
Gear ratio numerator −10000 to
10000
Gear ratio denomi- 1 to 10000
nator
Master axis classifi- 0 or 1
cation
Note
Description
• When these conditions are not met, "CAM (Electronic cam, single axis)"
and "CAMBOX (Electronic cam, synchronous)" commands may cause the
axis to stop operating, or to operate in an unexpected way. To avoid acci-
dents, make sure that the conditions are met.
The position data and global general variable can be used while being over-
written real-time. Therefore, the MC unit does not internally check the condi-
tions for the restrictions mentioned above. (This also applies to the cam data.)
Restriction on the displacement:
Set it so that the value is within the setting range.
Positioning is performed synchronizing the slave axis to the specified master
axis based on the specified gear ratio.
Single execution command
CONNECT_[<slave axis name>]<gear ratio numerator> ---8--- [<master axis
name>]<gear ratio denominator> {B<master axis classification>};
Ex: CONNECT_[J02]1 [J03]2 [J04]3 [J01]100;
Axis name: J01 to J32
Decimal
Bit
No No
No No
No No
(1) Word data is extended to long word data with a sign in the MC Unit.
(2) Figures below the decimal point are to be omitted.
• Synchronous operation is performed in the ratio Gear ratio numerator/
Gear ratio denominator.
• The value in Gear ratio denominator is common for all the slave axes. If
there are different ratios within one block, they are to be reduced to a
common denominator to set the ratios.
• A negative value can also be set for Gear ratio numerator, which can
make the travel directions of the master and slave axes opposite.
• Master axis classification determines whether to synchronize the slave
axis with the master axis command value or feedback value.
Master axis
classification
0 or omitted
1
• If the speed obtained by multiplying the master axis speed and the gear
ratio exceeds the speed specified in the parameter [P2AA01: Maximum
rapid feed rate], the alarm [3011h: Synchronizing slave axis excessive
speed] will occur.
• CONNECT command execution will be completed when the electronic
shaft synchronization for all the specified axes are established.
Variable specification
Word Long
word number
Yes (See Yes Yes (See
note 1.) note 2.)
Yes (See Yes Yes (See
note 1.) note 2.)
Yes (See Yes Yes (See
note 1.) note 2.)
Master axis value to
synchronize with
Command value
Feedback value
Section 6-3
INC/ ABL
influ-
Real Indirect
ence
specifi-
cation
Yes No
Yes No
Yes No
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