Basic Functions And Option Functions - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

1.4 Basic functions and option functions

● Basic functions (High-speed serial communication interface input/output signals)
Function
Emergency stop input
Speed command input
Ready ON input
Forward run, reverse run
command input
Orientation command
input
Gear selection 1,2 input
Torque limit 1, 2, 3 input
Indexing forward run,
reverse run command
input
Control mode selection
command 1, 2, 3, 4, 5
input
Zero speed output
Speed reached output
Speed detection output
Current detection output
In motor forward run/
reverse run output
Orientation output
complete
Index positioning complete
output
In alarm output
Speed display output
Load display output
Acceleration/deceleration
time constant setting
● Option functions
Function
Multi-point (4096 point)
orientation
Indexing function
High-speed synchronous
tapping
Spindle speed display,
synchronous feed signal
When the emergency stop signal turns OFF, the motor decelerates to a stop with
regenerative braking, and after stopping the gate is shut off.
The digital speed command is input from the control unit.
After ready ON is input, the motor can be run.
When the signal is turned OFF, the motor will coast to stop.
While this signal is ON, the motor will rotate in the counterclockwise direction (forward run)
or clockwise direction (reverse run) looking from the motor shaft side. The operation will
follow the speed command. The motor will decelerate to a stop when this signal turns OFF.
This is the orientation start signal. When this signal turns ON, orientation will start
regardless of the forward run/reverse run commands.
The spindle gear step (4-step) for orientation or position control is selected.
The motor is rotated with the output torque temporarily reduced.
Seven types of torque limit values (parameter set) can be used.
This is the forward run (CCW) or reverse run (CW) indexing command input after
multi-point orientation. This is valid when the orientation start signal is ON.
The spindle drive unit operation mode (speed control, position control) can be selected
directly with bit correspondence.
This signal turns ON when the actual motor speed drops to below zero speed (parameter
set).
This signal turns ON when the actual motor speed in respect to the commanded speed
reaches ±15%.
This signal turns ON when the motor speed drops to below that set with parameters.
This signal turns ON when the current value reaches 110% or more of the rated current.
Whether the actual motor is running in forward or reverse is detected and a signal is
output.
This signal turns ON if the stop position is in the in-position (parameter set) range during
orientation. This signal turns OFF when not in the in-position range.
This signal turns ON when indexing is completed.
This signal turns ON if an alarm occurs in the spindle drive unit. The alarm details are
displayed with corresponding numbers on the unit and drive unit.
The actual motor speed is displayed on the control unit screen.
The actual motor load (motor output) is displayed on the control unit screen with 100% as
the short time rated output.
The time constant of the speed command used during acceleration/deceleration can be
set with parameters. Note that this will differ from the actual operation time because of the
load GD.
1. When using motor built-in encoder (only gear ratio 1:1)
2. When using installed 1024p/rev encoder
Stopping from the high speed rotation to any of the 4096 points is possible directly.
After orientation stop, the motor can be stopped from either forward run or reverse run at
any of the 4096 points.
Direct high-speed, high-precision tapping is possible without using a floating tap chuck.
The encoder pulse data is output to the control unit via a high-speed serial cable, so the
spindle speed can be displayed and threading can be carried out.
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