Mitsubishi Electric M80V Series Manual page 263

M800V/M80V Series PLC Interface Manual
4 Explanation of Interface Signals
4.1 PLC Input Signals (Bit Type: X***)
Cont. Signal name
A Current detection
[Function]
This signal is output from the spindle controller (spindle drive) with high-speed serial coupling specifications, and informs
that the load current is about to reach the permissible maximum current. This signal is used to prevent the cutter from
biting into the workpiece, for example.
[Operation]
This signal (CDO) turns ON when the motor current is above the threshold (110% output) close to the permissible
maximum current (120%).
Note
(1) This signal is valid only for systems that are high-speed serially coupled to the spindle controller.
Cont. Signal name
A Speed detection
[Function]
This signal is output from the spindle controller (spindle drive) with high-speed serial coupling specifications and informs
that motor speed is dropped below the speed specified by parameter.
[Operation]
This signal (VRO) turns ON when the motor speed (motor rotation speed) falls below the detection level specified by the
spindle parameter "#13028 SP028 SDTS" (Speed detection set value).
Spindle motor speed Spindle motor speed
Speed detection (VR0) Speed detection (VR0)
Note
(1) This signal is valid only for systems that are high-speed serially coupled to the spindle controller.
[Related signals]
(1) Speed detection 2 (SD2: X189D)
Cont. Signal name
A In spindle alarm
[Function]
This signal is output from the spindle controller (spindle drive) with high-speed serial coupling specifications and informs
that some kind of alarm has occurred on the spindle controller.
[Operation]
This signal turns ON when an alarm is detected on the spindle controller side.
To cancel the alarm, reset (reset & rewind) the controller, turn OFF the controller, or turn OFF the spindle controller. The
reset method depends on the type of alarm.
Typical examples of alarm are listed below. For details of alarm contents and cancel procedure, refer to the "Instruction
Manual" of the spindle drive unit used.
 Overcurrent
 Breaker trip
 Motor overheat
Note
(1) This signal is valid only for systems that are high-speed serially coupled to the spindle controller.
IB-1501616-D
Abbrev. 1stSP 2ndSP
CDO X1889 X18E9 X1949
Abbrev. 1stSP 2ndSP
VRO X188A X18EA X194A
Speed command Speed command threshold
(SP020) (SP020)
Abbrev. 1stSP 2ndSP
FLO X188B X18EB X194B
250
3rdSP 4thSP 5thSP 6thSP
X19A9 X1A09 X1A69
3rdSP 4thSP 5thSP 6thSP
X19AA X1A0A X1A6A
3rdSP 4thSP 5thSP 6thSP
X19AB X1A0B X1A6B
7thSP 8thSP
X1AC9 X1B29
7thSP 8thSP
X1ACA X1B2A
7thSP 8thSP
X1ACB X1B2B