Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 151)

Parameter b5-38 determines the display value when the maximum frequency is output and parameter b5-39 determines the
number of digits. The setting value is equal to the number of decimal places.
No. Name Setting Range Default
b5-38 PID Setpoint User Display 1 to 60000
Determined by
b5-20
b5-39 PID Setpoint Display Digits 0 to 3
Determined by
b5-20
Setting 0: No Decimal Places
Setting 1: One Decimal Place
Setting 2: Two Decimal Places
Setting 3: Three Decimal Places
n b5-40: Frequency Reference Monitor Content During PID
Sets the content of the frequency reference monitor display (U1-01) when PID control is active.
No. Name Setting Range Default
b5-40 Frequency Reference Monitor Content During PID 0, 1 0
Setting 0: Frequency Reference after PID
Monitor U1-01 displays the frequency reference increased or reduced for the PID output.
Setting 1: Frequency Reference
Monitor U1-01 displays the frequency reference value.
n b5-46: PID Setpoint Monitor Unit Selection
Sets the HOA keypad display units in U5-01 and U5-04 when b5-20 is set to 3.
No. Name Setting Range Default
b5-46 PID Setpoint Monitor Unit Selection 0 to 14 0
Setting 0: WC (Inch of Water)
Setting 1: PSI (Pounds per Square Inch)
Setting 2: GPM (Gallons per Minute)
Setting 3: F (Degrees Fahrenheit)
Setting 4: CFM (Cubic Feet per Minute)
Setting 5: CMH (Cubic Meters per Hour)
Setting 6: LPH (Liters per Hour)
Setting 7: LPS (Liters per Second)
Setting 8: Bar (Bar)
Setting 9: Pa (Pascal)
Setting 10: C (Degrees Celsius)
Setting 11: Mtr (Meters)
Setting 12: Ft (Feet)
Setting 13: LPM (Liters per Minute)
Setting 14: CMM (Cubic Meters per Minute)
n b5-47: PID Output Reverse Selection 2
Determines whether a negative PID output reverses the direction of drive operation. When the PID function is used to trim
the frequency reference (b5-01 = 3), this parameter has no effect and the PID output will not be limited
(same as b5-11 = 1).
No. Name Setting Range Default
b5-47 PID Output Reverse Selection 2 0, 1 1
Setting 0: Reverse Disabled
Negative PID output will be limited to 0 and the drive output will be stopped.
5.2 b: Application
YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual 151
5
Programming