Delta D25886 User Manual Page 129

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4. Motion Control Instruction
4-88 DVP-MC operating manual
4.5.10. DMC_ExternalMaster
API Controller
73
DMC_ExternalMaster
Create external virtual master axis
10MC11T
Explanation of the instruction:
The instruction is applied to constitute a virtual master axis which could not serve as slave axis but master
axis. DVP10MC11T supports max. 18 virtual master axes. The source of virtual master axis is the pulse
received at the encoder port or the variable of the internal register. Through execution of the instructions
related with axis, virtual master axis could establish the relation of gear, cam and etc. with other virtual axis or
real axis.
Explanation of input and output parameter of the instruction:
Parameter
name
Explanation
Data
type
Available
device
Axis The node address of virtual master axis. Range: 118 UINT Constant,D
Execute
This instruction is executed when “Execute” turns Off –>
On.
BOOL
M,I,Q,
constant
External-
Encoder
As the parameter is 0, pulse comes from the set value of
“Source”;
As the parameter is 1, pulse comes from external pulser,
and “Source” is invalid.
BOOL
M,I,Q,
constant
Source
When ExternalEncoder=1, usually, the data of virtual
master axis comes from the register inside the controller.
DINT
Constant,
D
AxisType
0: Rotary axis
1: Linear axis
UINT
Constant,
D
UserUnit/Turn
The number of the pulses needed when the virtual axis
rotates for one circle or the variables of “Source”.
REAL Constant,D
Modulo
The cycle used to divide equally the terminal actuator
position.
REAL
Constant,
D
InputOfGear
To constitute the mechanical gear ratio with
“OutputOfGear”
REAL
Constant,
D
OutputOfGear To constitute the mechanical gear ratio with “InputOfGear” REAL
Constant,
D
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