Frequently asked questions
How do I set up PID for sleep wakeup on an ATV21 or ATV212 drive?
28 September 2021
Sleep Wake Up function
All model and serial numbers
For PID setup see FAQ FA230136.
PID SLEEP WAKEUP can be enabled by setting F256 [Time limit low spd]
Setting this function to 0 disables this function.
The range of this function is between 0 and 600 seconds. 0 disables this function.
If parameter F256 is enabled and if the drive operates continuously at [Low limit frequency] (LL) for a time period equal to the setting of F256, the drive will ramp the motor to a stop. While the motor is stopped, “LStP” will flash on the drive
embedded display terminal.
When the speed reference to the drive exceeds the low speed level LL+F391, the drive will accelerate the motor to the new speed