Instruction manual

4. SERVO SYSTEM CPU DEVICES
4 − 22
(20) Synchronous encoder current value changing flags (M2101 to M2112)
............................................................................. Signals from PCPU to SCPU
The synchronous encoder current value changing flag is ON while the current
value of the synchronous encoder is being changed using the control change
(CHGA) instruction of the sequence program.
Use this flag as an interlock for the synchronous encoder current value
change program.
OFF
ON
ON
OFF
During current value
change processing
Current value change
command
CHGA instruction
Synchronous encoder
current value changing flag
(21) Automatically decelerating flag (M2128 to M2159)
................................................................................Signal from PCPU to SCPU
This signal is ON while automatic deceleration processing is performed under
positioning control or position follow-up control.
(a) Under position follow-up control, this flag is ON during automatic
deceleration to the command address, but turns OFF if the command
address is changed during that time.
(b) Under control in any control system, this flag turns OFF on normal start
completion.
(c) In any of the following cases, the automatically decelerating flag does not
turn ON.
• During deceleration due to JOG signal turned OFF
• During manual pulse generator operation
• At midway deceleration due to stop command or stop cause occurrence
• When travel value is "0"
V
t
ON
OFF
Automatically
decelerating flag