NPM PPCI7443, User Manual

Page: 81 / 183

Operation Theorem
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73
Relative Functions:
_7443_set_sd_pin(),_ 7443_set_pcs_logic(): Refer to section 6.5
_7443_set_sd(): Refer to section 6.12
_7443_get_io_status():
Refer to section 6.13
4.3.2 EL
The end-limit signals are used to stop the control output signals (OUT and
DIR) when the end-limit is active. There are two possible stop modes, one
is “stop immediately”, and, the other is “decelerate to StrVel then stop”. To
select the mode: _7443_set_el().
PEL signal indicates end-limit in positive (plus) direction. MEL signal
indicates end-limit in negative (minus) direction. When the output pulse
signals (OUT and DIR) are toward positive direction, the pulse train will be
immediately stopped when the PEL signal is inserted, while the MEL signal
is meaningless in this case, and vise versa. When the PEL is inserted, only
the negative (minus) direction output pulse can be generated for moving the
motor to negative (minus) direction.
The EL signal can generate IRQ if the interrupt service is enabled, please
refer to section 4.7.
You can use either ‘a’ contact switch or ‘b’ contact switch by setting the dip
switch S1.
The PPCI7443 is delivered from the factory with all bits of S1
set to ON.
The signal status can be monitored by software function:
_7443_get_io_status().
Relative Functions:
_7443_set_el(): Refer to section 6.12
_7443_get_io_status(): Refer to section 6.13
4.3.3 ORG
The ORG signal is used, when the motion controller is operated at the
home return mode. There are 13 home return modes (please refer to
section 4.1.8), you can select one of them by setting “
home_mode”
argument in software function: _7443_set_home_config(). The logic
polarity of the ORG signal, level input or latched input mode are selectable
by this software function.
After setting the configuration of home return mode by
_7443_set_home_config(), a _7443_home_move() command can
perform the home return function.
Relative Functions: