Nova Electronics MR210AU, Руководство пользователя

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3.3.3 Example for Home Search Mode Setting
■
Example for execution of home search using a home signal only
Inputting a home signal to both pins STOP0 and STOP1, the user can
perform a home search at high-speed by one home signal. Examples are as
follows:
[Operation]
Input Signal and Logical Level Search
Direction
Detection
Speed
Step 1 STOP0, Low (GEX Short-circuited)
－
20,000pps
Step 2 STOP1, Low (GEX Short-circuited) － 200pps
Step 3 Non-execution
Step 4
3500 pulse offset driving in the
＋
direction
＋ 20,000pps
As shown in the table above, set the same logical level and
search direction for step 1 and step 2.
Search a home at high-speed (20,000pps) in step 1, when the
home signal becomes active, it stops by decelerating. If the stop
position is within the home signal active section, the function
controls to escape in the opposite direction by the irregular
operation (1) of step 2 and then searches a home by operation of
step 2.
If the stop position of step 1 passed through the home signal active section, the limit in the search direction is set in step 2, in this
case, irregular operation (3) will be performed.
When home search starting position is in point A as shown in the diagram, irregular operation (1) of step 2 is performed without
step 1. When starting position is in point B as shown in the diagram, irregular operation (2) of step 2 is performed after the limit is
set in the search direction in step1.
[Note]
1. Make sure to set an over run limit ahead of detection direction and connect the signal to the limit input (LMT+/-).
2. Since the same signal is used in Step 1 and Step 2, the same logical level and detection direction must be applied.
[Parameter setting]
Item Setting
Value
Remark
Speed Multiplier 10
Acceleration Rate
400
Can stop by decelerating within the home signal active
section.
Start Speed 50 Start speed for trapezoidal driving.
Home Search Low Speed 20 200pps set the smaller value than the start speed.
Home Search High Speed 2000 20,000pps
Home Search Offset 3500
[Home search mode setting]
Item Setting
Value
Remark
Near Home Signal Level(nSTOP0)
logical level
Low
GEX short-circuited and active.
Home Signal Level (nSTOP1)
logical level
Low
The same signal as STOP0, so the logical level is also
the same as STOP0.
Z Signal Level (nSTOP2)
logical level
Low
Not used.
Step 1 Enable enable/disable Enable Enable
Step 1 Direction search direction
－ －
direction
Step 2 Enable enable/disable Enable Enable
Step 2 Direction search direction － － direction
Step 3 Enable enable/disable Disable Disable
XSTOP0
XSTOP1
X-axis Home Sensor
MR210A/220A
CN4
10
11
Active
STOP0=STOP1
Ditection
Over Run Limit in the
Step1
Step2
Ａ Ｂ
Section
Direction
Search Direction
Section
Active
Section