Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 124)

No. Parameter Name Default Setting
b5-08 PID Primary Delay Time Constant 2 s
b5-13 PID Feedback Low Detection Level 2%
b5-14 PID Feedback Low Detection Time 25 s
C1-01 Acceleration Time 1 60 s
H3-01 Terminal A1 Signal Level Selection 2: 4 to 20 mA
H3-02 Terminal A1 Function Selection B: PID feedback
H3-10 Terminal A2 Function Selection 16: Differential PID feedback
L5-01 Number of Auto Restart Attempts 10
L6-01 Stall Prevention Selection during Deceleration 5: UL3 at speed agree (Alarm)
o1-07 Second Line Monitor Selection 505: PID Differential Feedback
u Setting 4: Cooling Tower Fan Application
Table 4.10 Cooling Tower Fan: Parameter Settings
No. Parameter Name Default Setting
b1-03 Stopping Method Selection 1: Coast to Stop
b1-04 Reverse Operation Selection 0: Reverse operation enabled
b2-09 Motor Pre-Heat Current 2 10%
C1-01 Acceleration Time 1 60 s
d2-03 Master Speed Reference Lower Limit 30%
H1-07 Multi-Function Digital Input Terminal S7 Function Selection 60: Motor Pre-Heat 1
L5-01 Number of Auto Restart Attempts 10
L6-01 Stall Prevention Selection during Deceleration 5: UL3 at speed agree (Alarm)
u Setting 5: Cooling Tower Fan with PID Control Application
Table 4.11 Cooling Tower Fan with PID Control: Parameter Settings
No. Parameter Name Default Setting
b1-03 Stopping Method Selection 1: Coast to Stop
b1-04 Reverse Operation Selection 0: Reverse operation enabled
b2-09 Motor Pre-Heat Current 2 10%
b5-01 PID Function Setting 1: Output frequency = PID output 1
b5-03 Integral Time Setting (I) 30 s
b5-08 PID Primary Delay Time Constant 2 s
b5-09 PID Output Level Selection 1: Reverse Output
b5-13 PID Feedback Low Detection Level 2%
b5-14 PID Feedback Low Detection Time 25 s
b5-15 PID Sleep Function Start Level 10.8 Hz
b5-16 PID Sleep Delay Time 25.5 s
C1-01 Acceleration Time 1 60 s
d2-03 Master Speed Reference Lower Limit 30%
H1-07 Multi-Function Digital Input Terminal S7 Function Selection 60: Motor Pre-Heat 1
L5-01 Number of Auto Restart Attempts 10
L6-01 Stall Prevention Selection during Deceleration 5: UL3 at speed agree (Alarm)
4.5 Application Selection
124 YASKAWA SIEP YAIZ1D 01A Z1000U HVAC MATRIX Drive Bypass Technical Manual