YASKAWA Z1000U Series Programming Manual page 40

1.2 b: Application
n b5-24: PID Snooze Deactivation Level
When the PID feedback drops below this level, normal operation starts again. Sets as a percentage of maximum frequency.
No.
b5-24
n b5-25: PID Setpoint Boost Setting
Temporary increase of PID setpoint to create an overshoot of the intended PID setpoint.
No.
b5-25
n b5-26: PID Maximum Boost Time
Associated with the Snooze Function. In cases where the temporary PID Setpoint (intended PID setpoint + PID Setpoint Boost)
cannot be reached within the PID Maximum Boost Time (b5-26), the Setpoint Boost is interrupted and the Drive output is
turned off.
No.
b5-26
n b5-27: PID Snooze Feedback Level
The second method of initiating the Snooze Function. The drive output shuts off when the PID feedback level exceeds the
PID Snooze Feedback Level (b5-27).
Normal drive and PID operation return after the PID feedback drops below the PID Snooze Deactivation Level (b5-24). Snooze
activates when both b5-22 and b5-27 conditions are met. There is no time delay for deactivation.
Sets as a percentage of maximum frequency.
No.
b5-27
n b5-28: PID Feedback Function Selection
When b5-28 is set to 1, the square root of the PID feedback is compared to the PID Setpoint to determine appropriate drive
output to properly regulate the system.
This is helpful in cases where the measured feedback is pressure, but the PID loop needs to regulate flow.
No.
b5-28
0: Disabled
1: Square Root
n b5-29: PID Square Root Gain
A multiplier applied to the square root of the feedback. If the PID Function is regulating the flow of a closed loop system by
using a pressure feedback, it may be convenient to view the square root of the PID output using monitor U1-37.
No.
b5-29
n b5-30: PID Feedback Offset
Sets PID feedback Offset as a percentage of maximum frequency.
No.
b5-30
40
Parameter Name
PID Snooze Deactivation Level
Parameter Name
PID Setpoint Boost Setting
Parameter Name
PID Maximum Boost Time
Parameter Name
PID Snooze Feedback Level
Parameter Name
PID Feedback Function Selection
Parameter Name
PID Square Root Gain
Parameter Name
PID Feedback Offset
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual
Setting Range
0 to 100%
Setting Range
0 to 100%
Setting Range
0 to 2600 s
Setting Range
0 to 100%
Setting Range
0, 1
Setting Range
0.00 to 2.00
Setting Range
0.00 to 100.00%
Default
0%
Default
0%
Default
0 s
Default
60%
Default
0
Default
0.00
Default
0.00%