Mitsubishi MELDAS MDS-C1

5. Spindle Adjustment
5 - 13
bit2. Up-to-speed (US)
This signal turns ON when the start command signal (forward run, reverse run) is ON, and the
motor speed has reached a range of ±15% (standard value) of the speed command value. This
signal turns OFF when the start command signal turns OFF. The up-to-speed output range can be
set with the parameter SP048 (SUT).
Up-to-speed (US) sequence
bit3. Zero speed (ZS)
Regardless of the input signal state, this signal turns ON when the motor speed drops below the
value set with parameter SP018 (ZSP). Once this signal turns ON, it will not turn OFF for at least
200ms. If the parameter SP018 (ZSP) setting value is too small (approx. 10r/min or less), this
signal may not be output even if the motor is stopped.
Zero speed (ZS) sequence
bit4. Orientation complete (ORCA)
This signal turns ON when the orientation command is input, and the spindle position is reached
the set range (within the in-position range) in respect to the target stop position. This signal turns
OFF when orientation is completed and the spindle position deviates from the in-position range,
but it will turn ON again when the spindle position enters the in-position range again. If the
orientation command is turned OFF, this signal will turn OFF even if the spindle position is within
the in-position range. The in-position range can be set with parameter SP004 (OINP).
Motor speed
Forward run start command
(SRN)
ON
OFF
0
SP048
Reverse run start command
(SRI)
ON
OFF
Up-to-speed (US)
ON
OFF
Out
p
ut ran
g
e
Out
p
ut ran
g
e
Motor speed
ON
OFF
0
SP018
ON
OFF
Zero speed (ZS)
ON
OFF
200ms
Forward run start command
(SRN)
Reverse run start command
(SRI)
Out
p
ut ran
g
e