Qd75Mh) - Mitsubishi Electric QD75MH1 User Manual

3 SPECIFICATIONS AND FUNCTIONS
3.3.3 Detail of output signals (PLC CPU
Device No.
Y0 PLC READY
Y1 All axis servo ON
Y4 Axis 1 Axis stop
Y5 Axis 2
Y6 Axis 3
Y7 Axis 4
Y8 Axis 1 Forward run JOG start
Y9 Axis 1 Reverse run JOG start
YA Axis 2 Forward run JOG start
YB Axis 2 Reverse run JOG start
YC Axis 3 Forward run JOG start
YD Axis 3 Reverse run JOG start
YE Axis 4 Forward run JOG start
YF Axis 4 Reverse run JOG start
Y10 Axis 1 Positioning start
Y11 Axis 2
Y12 Axis 3
Y13 Axis 4
Execution prohibition
Y14 Axis 1
flag
Y15 Axis 2
Y16 Axis 3
Y17 Axis 4
The ON/OFF timing and conditions of the output signals are shown below.
Signal name
OFF:
PLC READY OFF
ON:
PLC READY ON
OFF:
Servo OFF
ON:
Servo ON
OFF:
Axis stop not
requested
ON:
Axis stop requested
OFF:
JOG not started
ON:
JOG started
OFF:
Positioning start not
requested
ON:
Positioning start
requested
OFF:
Not during execution
prohibition
ON:
During execution
prohibition

QD75MH)

(a) This signal notifies the QD75MH that the PLC CPU is normal.
• It is turned ON/OFF with the PLC program.
• The PLC READY signal is turned ON during positioning
control, OPR control, JOG operation, inching operation, and
manual pulse generator operation, unless the system is in the
peripheral device test mode.
(b) When the data (parameter etc.) are changed, the PLC READY
signal is turned OFF depending on the parameter (Refer to
Chapter 7.).
(c) The following processes are carried out when the PLC READY
signal turns from OFF to ON.
• The parameter setting range is checked.
• The QD75 READY signal [X0] turns ON.
(d) The following processes are carried out when the PLC READY
signal turns from ON to OFF.
In these cases, the OFF time should be set to 100ms or more.
• The QD75 READY signal [X0] turns OFF.
• The operating axis stops.
• The M code ON signal [X4 to X7] for each axis turns OFF, and
Md.25
"0" is stored in "
(e) When parameters or positioning data (No. 1 to 600) are written
from the peripheral device or PLC CPU to the flash ROM, the
PLC READY signal will turn OFF.
• The servo for all the servo amplifiers connected to the QD75MH is
turned ON or OFF.
• When the axis stop signal turns ON, the OPR control, positioning
control, JOG operation, inching operation and manual pulse
generator operation will stop.
• By turning the axis stop signal ON during positioning operation, the
positioning operation will be "stopped".
• Whether to decelerate or suddenly stop can be selected with
Pr.39
" Stop group 3 sudden stop selection".
• During interpolation control of the positioning operation, if the axis
stop signal of any axis turns ON, all axes in the interpolation
control will decelerate and stop.
• When the JOG start signal is ON, JOG operation will be carried
Cd.17
out at the " JOG speed". When the JOG start signal turns
OFF, the operation will decelerate and stop.
• When inching movement amount is set, the designated movement
amount is output for one control cycle and then the operation
stops.
• OPR operation or positioning operation is started.
• The positioning start signal is valid at the rising edge, and the
operation is started.
• When the positioning start signal turns ON during BUSY, the
operation starting warning will occur (warning code: 100).
• If the execution prohibition flag is ON when the positioning start
signal turns ON, positioning control does not start until the
execution prohibition flag turns OFF.
Used with the "Pre-reading start function". (Refer to Section
12.7.8)
3 - 17
MELSEC-Q
Details
Valid M code".