NOVA electronics Inc.
MCX514 -
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2.5.1
Operation of Each Step
In each step, the user can specify execution/non-execution, the
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/
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search direction and a detection signal by mode setting. If
non-execution is specified, it proceeds with next step without executing that step.
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Step 1: High-speed home search
Drive pulses are output in a specified direction at the speed
set in the drive speed (DV) until the specified detection
signal becomes active. The user can specify any one of
nSTOP0, nSTOP1 and limit signals as the detection signal.
If a limit signal is selected, it becomes the limit signal of a
search direction.
To perform high-speed search operation, set the drive
speed (DV) higher than the initial speed.
Acceleration/deceleration driving is performed and when
the specified signal becomes active, the operation stops by
deceleration.
Fig. 2.5-3 Operation of Step 1
Irregular operation
①
A specified detection signal is already active before Step 1 starts.
→ Proceeds with Step 2.
②
When nSTOP0 or nSTOP1 is specified as a detection signal and a limit
signal in the search direction is already active before Step 1 starts.
→ Proceeds with Step 2.
③
When nSTOP0 or nSTOP1 is specified as a detection signal, and a limit
signal in the search direction is activated during execution.
→ Stops driving and proceeds with Step 2.
Other operations in Step 1
At the end of Step 1, the timer between steps can be used. For more details, see chapter 2.5.3.
[Note]
•
Since Step 1 performs a high-speed search, if the user specifies a limit signal as a detection signal, the limit stop mode
must be set to decelerating stop mode (WR2/D12 : 1). For more details of the WR2 register, see chapter 6.6.
Specified Signal
Irregular
①
Specified Search
Direction
Over Run Limit in the
Search Direction
Irregular
③
Irregular
②
Normal Operation
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Active
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