NOVA electronics Inc.
MCX514 -
56
-
56
-
// D1 1 Step
1
search direction
:
-
direction
// D0 1 Step
1
execution/non-execution
:
Execution
WR0
←
0123h Write
// Writes a command
// Automatic home search mode setting 2
WR6
←
0000h Write
// D15 0
// D14 0
// D13 0
// D12 0
// D11 0
// D10
~
8 0 Timer value
// D7 0 Timer between steps
Disable
// D6
~
4 0 DCC pulse width
// D3 0 DCC pulse logic
// D2 0 At the termination of home search, LP clear
Disable
// D1 0 At the termination of home search, RP clear
Disable
// D0 0 Step
2&3
Disable
WR0
←
0124h Write
// Writes a command
// High-speed home search and low-speed home search setting
WR6
←
7318h Write
// Acceleration/deceleration
:
95,000 PPS/SEC
WR7
←
0001h Write
WR0
←
0102h Write
WR6
←
03E8h Write
// Initial speed
:
1000 PPS
WR7
←
0000h Write
WR0
←
0104h Write
WR6
←
4E20h Write
// Speed of step 1 and 4
:
20000 PPS
WR7
←
0000h Write
WR0
←
0105h Write
WR6
←
01F4h Write
// Speed of step 2
:
500 PPS
WR7
←
0000h Write
WR0
←
0114h Write
// Offset pulse setting
WR6
←
0DACh Write
// Offset driving pulse count
:
3500
WR7
←
0000h Write
WR0
←
0106h Write
// Starts execution of automatic home search
WR0
←
015Ah Write
Note1: The bits in WR2 register, D10 bit is to set the logical setting of a limit signal, D11 bit is to enable a limit function and D12
bit is to set a limit operation. However in this case, when a limit signal is used as a detection signal, the limit signal will be
enabled regardless of D11 setting in the operation of that step (D11 setting does not affect the operation of steps using a limit
signal as a detection signal). D12 bit must be enabled decelerating stop and about D10 bit, set it according to the usage.
[Notes on using limit signals]
•
The same search direction must be applied for Steps 1 and 2. For Step 3 (Z-phase search), apply a direction opposite to
the direction of Steps 1 and 2. For Step 4 also (offset driving), apply a direction opposite to Steps 1 and 2 and make
sure that automatic home search operation stops at the position beyond the limit active section.