Mode Reset After Passing Dwell Time; Stop Causes During Pressure Control Mode - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

Mode reset after passing dwell time

When "1: Reset mode after passing dwell time" is set in mode reset selection after passing dwell time, the system (Motion
CPU) automatically resets mode after passing the set time of the dwell final step. (Operation is returned to positioning control
from pressure control.)
Without turning the feed/dwell startup device OFF, control automatically returns to positioning control when the set dwell time
passes.
When "0: Do not reset mode after passing dwell time" is set, "[St.1040] Start accept flag (R: M30080+n/Q: M2001+n)" stays
turned ON even after passing the set time of the dwell final step.
Regardless of the setting for the mode reset selection after passing dwell time, if the real current value reaches the final
address, "[St.1040] Start accept flag (R: M30080+n/Q: M2001+n)" turns OFF, and the mode resets. (Returns to positioning
control from pressure control)
Precautions
The feed/dwell startup device is not turned OFF automatically.
Check if the control mode has been changed to position control mode by viewing the status of pressure control status devices
(feed/dwell (B0), dwell (B1)).
When starting pressure control again, turn OFF the feed/dwell startup device, and turn it back ON again to execute pressure
control.

Stop causes during pressure control mode

The following describes the operations for stop causes during pressure control mode.
Item
The "[Rq.1140] Stop command (R: M34480+32n/Q: M3200+20n)"
turned ON
The "[Rq.1141] Rapid stop command (R: M34481+32n/Q:
M3201+20n)" turned ON
The external stop input turned ON
The "[Rq.1123] All axis servo ON command (R: M30042/Q:
M2042)" turned OFF
The "[Rq.1155] servo OFF command (R: M34495+32n/Q:
M3215+20n)" turned ON
The software stroke limit is reached
The hardware stroke limit is reached
The "[Rq.1120] PLC ready flag (R: M30000/Q: M2000)" turned OFF.
The forced stop input to Motion CPU.
The forced stop input to servo amplifier.
The servo error occurred.
The servo amplifier's control circuit power supply turned OFF.
Operation during torque control mode
The speed limit command value commanded to servo amplifier is 0 regardless of the
setting value of "speed limit value". The mode is switched to position control mode when
"ZERO speed (b3)" of "[Md.1022] Servo status2 (R: D32033+48n/Q: #8011+20n)" turns
ON, and the operation stops immediately. (Deceleration processing is not executed.)
The servo OFF is not executed during pressure control mode. The command status at
that time becomes valid when the mode is switched to position control mode.
The minor error (error code: 1900H, 1905H, 1907H, 1993H, 1995H) will occur. The mode
is switched to position control mode at current position, and the operation immediately
stops. (Deceleration processing is not executed.)
The mode is switched to position control mode when the servo OFF (The "[St.1075]
Servo ready (R: M32415+32n/Q: M2415+20n)" turns OFF) is executed.
(While the servo amplifier is servo OFF, even if the mode is switched to position control
mode, the servomotor occurs to the free run. (The operation stops with dynamic brake.))
The motor occurs to the free run. (The operation stops with dynamic brake.) (The mode
is to position control mode at the servo amplifier's power supply ON again.)
7 AUXILIARY AND APPLIED FUNCTIONS
461
7.7 Pressure Control
7