Yaskawa iQpump Controller Programming Manual - Manual (Page 42)

42 YASKAWA TM.iQp.07 iQpump Controller Programming Manual
◆ C1-11 Accel / Decel Switch Frequency
Setting Range: 0.0 ~ 200.0 Hz
Factory Default: 0.0 Hz
The iQpump drive can be programmed to automatically switch between the two sets of Accel / Decel parameters on the fly. No digital
input is required. If parameter C1-11 is set to a frequency other than zero, the iQpump drive will use Acceleration 1 and Deceleration 1
whenever the output frequency is equal to or above the value of C1-11 and use Acceleration 2 and Deceleration 2 whenever the output
frequency is below the value of C1-11.
A multi-function input programmed as “Multi-Acc / Dec 1” will have priority over C1-11. For example, if the output frequency is greater
than the value of C1-11 but a digital input configured as “Multi-Acc / Dec 1” is closed then Acceleration 2 and Deceleration2 are active.
Figure 1.31
Figure 31. Accel / Decel Switch Frequency Operation
Ou
tp
ut
F
requ
en
cy
Time
C1-11
C1-03 Rate C1-01 Rate C1-02 Rate C1-04 Rate