Yaskawa Z1000 AC Drive HVAC - Manual (Page 119)

u Setting 2: Fan with PI Control Application
Table 4.9 Fan with PI Control: Parameter Settings
No. Parameter Name Default Setting
b1-03 Stopping Method Selection 1: Coast to Stop
b1-04 Reverse Operation Selection 1: Reverse operation disabled
b5-01 PI Function Setting 1: Output frequency = PI output 1
b5-03 Integral Time Setting (I) 30 s
b5-08 PI Primary Delay Time Constant 2 s
b5-13 PI Feedback Low Detection Level 2%
b5-14 PI Feedback Low Detection Time 25 s
C1-01 Acceleration Time 1 60 s
L5-01 Number of Auto Restart Attempts 10
L6-01 Stall Prevention Selection during Deceleration 5: UL3 at speed agree (Alarm)
u Setting 3: Return Fan with PI Control Application
Table 4.10 Return Fan with PI Control: Parameter Settings
No. Parameter Name Default Setting
b1-03 Stopping Method Selection 1: Coast to Stop
b1-04 Reverse Operation Selection 1: Reverse operation disabled
b5-01 PI Function Setting 1: Output frequency = PI output 1
b5-03 Integral Time Setting (I) 30 s
b5-08 PI Primary Delay Time Constant 2 s
b5-13 PI Feedback Low Detection Level 2%
b5-14 PI 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: PI feedback
H3-10 Terminal A2 Function Selection 16: Differential PI 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: PI Differential Feedback
u Setting 4: Cooling Tower Fan Application
Table 4.11 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)
4.6 Application Selection
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual 119
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Start-Up Programming & Operation