NOVA electronics Inc.
MCX514 -
102
－
102
－
■
Relative position driving mode
Set D9, 8 bits of PIO signal setting 2
・
Other settings (22h) to 1, 0 and set the appropriate speed parameters for relative position
driving and drive pulse number (positive value). Once nEXPP
falls down to the Low level (↓),
＋
direction relative position
driving
will start by ↓ of it. Similarly, once nEXPM falls down to the Low level (↓),
－
direction relative position driving will start
by ↓ of it. The Low level width of each signal must be larger than 4 CLK cycles. Before the driving is finished, if the signal falls
down from the Hi to Low level again, it will be invalid.
XEXPP
XEXPM
XPP
XPM
Fig. 2.12-1 Example of X axis Relative Position Driving (Drive Pulse Number: 5) by External Signal
■
Continuous Pulse Driving Mode
Set D9, 8 bits of PIO signal setting 2
・
Other settings (22h) to 0, 1 and set the appropriate speed parameters for continuous pulse
driving. Once nEXPP
falls down to the Low level (↓), the + direction driving pulses will be output continuously during the low
level. If nEXPP returns from Low level to Hi level, decelerating stop will be performed in trapezoidal driving and instant stop will
be performed in constant speed driving. Similarly, nEXPM will output the
－
direction driving pulses continuously during the low
level. If the other input signal of nEXPP/nEXPM signals falls down from the Hi to Low level, the driving in the other direction
will start immediately after the driving in the current direction is finished.
XEXPP
XEXPM
XPP
XPM
Low period
Low period
Fig. 2.12-2 Example of X axis Continuous Pulse Driving by External Signal
