Mitsubishi Electric MELSEC iQ-F FX5 - Page 480

478
31 POSITIONING INSTRUCTION
31.7 Variable Speed Operation
Command speed
• If the command speed is changed to 0 during operation, the operation does not end with errors but is decelerated to a stop.
As long as the drive contact is on, changing the command speed restarts pulse output.
• When 0 is set for the command speed at start of the instruction, the operation ends with an error.
Acceleration/deceleration operation
• When acceleration time is set to 0, the speed is increased to the command speed immediately without acceleration
operation.
• When deceleration time is set to 0, no deceleration operation is performed and operation immediately stops when the drive
contact is turned off.
Operation of the complete flags
The following describes the operation timings of the complete flags.
The user-specified complete flags are valid only when specified using FX5 operand.
*1 The flag turns on only for one scan when the drive contact of the instruction turns from OFF to ON.
*2 Only high-speed pulse input/output module is supported.
Item FX3 compatible User specification
Instruction execution
complete flag
(SM8029)
Instruction execution
abnormal end flag
(SM8329)
Instruction execution
complete flag
(d2)
Instruction execution
abnormal end flag
(d2)+1
ON
condition
From when deceleration stop is
performed by the pulse
decelerate and stop command
to when the ON  OFF
condition is met
From when the following operation
or function is completed to when the
drive contact is turned off
• The axis is already used.
*1
• Pulse output stop command
• Limit of the moving direction
• All module reset when a stop
error occurs
*2
• All outputs disabled (SM8034)
• When 0 is set for the command
speed at start of the instruction
From when the drive contact is
turned off or when deceleration
stop is performed by the pulse
decelerate and stop command
to when the ON  OFF
condition is met
From when the following operation
or function is completed to when the
ON  OFF condition is met
• The axis is already used.
• Pulse output stop command
• Limit of the moving direction
• All module reset when a stop
error occurs
*2
• All outputs disabled (SM8034)
• Online change
• When 0 is set for the command
speed at start of the instruction
ON  OFF
condition
When the drive contact is turned off The flag remains on until either of the following is performed.
• Turning off the flag by the user
• Restarting the positioning instruction