Yaskawa Z1000U - Manual (Page 151)

Setting 5: Feedback Loss fault, even if PID Is Disabled by Digital Input
Same as b5-12 = 2. Detection remains active when PID is disabled by a digital input (H1-oo = 19).
n b5-13: PID Feedback Low Detection Level
Sets the feedback level used for PID feedback low detection. The PID feedback must fall below this level for longer than the
time set to b5-14 before feedback loss is detected.
No. Name Setting Range Default
b5-13 PID Feedback Low Detection Level 0 to 100% 0%
n b5-14: PID Feedback Low Detection Time
Sets the time that the PID feedback has to fall below b5-13 before feedback loss is detected.
No. Name Setting Range Default
b5-14 PID Feedback Low Detection Time 0.0 to 25.5 s 1.0 s
n b5-15: PID Sleep Function Start Level
Sets the level that triggers PID Sleep.
The drive goes into Sleep mode if the PID output or frequency reference is smaller than b5-15 for longer than the time set to
b5-16. The drive resumes operation when the PID output or frequency reference is above b5-15 for longer than the time set
to b5-16.
No. Name Setting Range Default
b5-15 PID Sleep Function Start Level 0.0 to 400.0 Hz 0.0 Hz
n b5-16: PID Sleep Delay Time
Sets the delay time to activate or deactivate the PID Sleep function.
No. Name Setting Range Default
b5-16 PID Sleep Delay Time 0.0 to 25.5 s 0.0 s
n b5-17: PID Accel/Decel Time
The PID acceleration/deceleration time is applied on the PID setpoint value.
When the setpoint changes quickly, the normal C1-oo acceleration times reduce the responsiveness of the system as they
are applied after the PID output. The PID accel/decel time helps avoid the hunting and overshoot and undershoot that can
result from the reduced responsiveness.
The PID acceleration/deceleration time can be canceled using a digital input programmed for “PID SFS cancel” (H1-oo =
34).
No. Name Setting Range Default
b5-17 PID Accel/Decel Time 0.0 to 6000.0 s 0.0 s
n b5-18: PID Setpoint Selection
Enables or disables parameter b5-19 for PID setpoint.
No. Parameter Name Setting Range Default
b5-18 PID Setpoint Selection 0, 1 0
Setting 0: Disabled
Parameter b5-19 is not used as the PID setpoint.
Setting 1: Enabled
Parameter b5-19 is used as PID setpoint.
n b5-19: PID Setpoint Value
Used as the PID setpoint if parameter b5-18 = 1.
4.12 Advanced Drive Setup Adjustments
YASKAWA ELECTRIC TOEP C710636 10B Z1000U HVAC MATRIX Drive User Manual 151
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Start-Up Programming & Operation