iEM-RS Series Modbus RS485 Integrated Stepper Motor
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5 PR Mode (Indexer Table)
PR mode is a single-axis motion control function with 16-segment position table, also called indexer table. It can save the
motion control function of the controller.
5.1 PR Main Features
PR mode can mainly set the following functions:
Features
Description
Homing
The drive can detect zero position by homing processing, and confirm the zero point of mechanical
coordinate system
Select homing method: by limit switch signal, by home switch signal, auto homing after power up,
set homing point by manual;
Homing direction can be set;
Homing offset can be set;
Move to the specified position after homing;
Acc/Dec of homing velocity can be set;
Note: Control instruction can not be sent to drive during homing
JOG
JOG can be realized by external I/O or RS485 communication.
CW JOG;
CCW JOG;
JOG teaching function;
The JOG velocity and JOG Acc/Dec can be set;
Limit
Protect the machine by limiting the working area range.
Positive/negative limit switch by digital input;
Soft limit setting;
Acc/Dec limit can be set
Note: Soft limit is valid after homing completed;
Quick stop
The movement stop immediately when the quick stop input is on, which is valid at PR mode only
PR Path
Select the PR path number by 4 digital inputs (ADD0, ADD1, ADD2, ADD3), and then start the PR
path movement by external I/O (CTRG) or RS485communication.
Include PP mode, PV mode and HM mode
Trigger methods include:
double edge trigger (CTGR) or
RS485 trigger
Support up to 16-segment PR positioning path
Position, velocity and Acc/Dec values can be set
Pause time or timing time can be set
Support interrupt, Overlapping, jump, etc.
Path Trigger
The above PR functions can be controlled by RS485
5.2 Homing / Return to Zero Position
Homing includes homing by detecting limit switch signal, homing by detecting home switch signal, set zero position by
manual, auto homing after powering on.