Mitsubishi Electric MELDAS C6 Interface Manual page 153

B con-
Signal name
tact
—
SPINDLE UP-TO-SPEED
[Function]
This signal is output from the high-speed serial connection specification spindle controller (spindle
drive) and informs that actual spindle motor speed reaches the range designated with the
parameter SP048.
This signal is used for the S command complete conditions or control axis interlock during
automatic operation.
[Operation]
The spindle up-to-speed signal (USO) turns ON when an alarm is detected on the spindle controller
side.
Spindle motor speed
Spindle up-to-speed (US0)
When the operation is changed from spindle forward run to spindle reverse run, the spindle motor
starts to decelerate, and the spindle up-to-speed signal turns OFF. When the motor enters the
detection range again, the spindle up-to-speed signal turns ON again.
Spindle forward
run start (SRN)
Spindle reverse
run start (SRI)
Spindle motor
speed
Spindle up-to-speed (US0)
(Note 1) This signal is not output unless the "spindle forward run start" (SRN) signal or "spindle
reverse run start" (SRI) signal is ON.
(Note 2) This signal is not output when operating with a command that is not a speed command
such as synchronous tap.
(Note 3) This signal is valid only for the system that is high-speed serially connected with the
spindle controller.
6. EXPLANATION OF INTERFACE SIGNALS
6.1 PLC Input Signals (Bit Type: X***)
Signal
abbreviation
USO
6-1-64
1st spindle 2nd spindle
X995 X9C5
Up-to-speed detect range
Up-to-speed
detect range
Up-to-speed
detect range
3rd spindle
X9F5