Delta MS300 Series User Manual page 422

Switch according to the deviation:
When the deviation absolute value between the set point and feedback is smaller than

Pr.08-76 (PID2 Parameter Switch Deviation 1), the first group PID parameters are used.
 When the deviation absolute value between the set point and feedback is larger than Pr.08-
77 (PID2 Parameter Switch Deviation 2), the second group PID parameters are used.
 When the deviation absolute value between the set point and feedback is between Pr.08-76
and Pr.08-77, the PID parameter is the linear interpolation value between the two PID
parameter groups.
08-78
Allowed Reverse Running Time after Start-Up

Settings
 When Pr.08-78 is not set to 0, the allowed reverse running time after start-up is enabled.
 When it is set to 1 second, the PID control is not allowed to change the running direction within
0–1 seconds of starting time (Pr.08-21 = 0), and is allowed to change after 1 second of starting
time (Pr.08-21 = 1).
0.0–6553.5 sec.
Chapter 12 Descriptions of Parameter SettingsMS300
413
Default: 0.0