YASKAWA Z1000 - Setting 4: Cooling Tower Fan Application; Setting 5: Cooling Tower Fan with PI Control Application

No. Parameter Name Default Setting
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
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Setting 4: Cooling Tower Fan Application
Table 4.9 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
<1>
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)
<1> Details on this function can be found in the standard Z1000 Programming Manual (SIEPC71061645) at www.yaskawa.com.
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Setting 5: Cooling Tower Fan with PI Control Application
Table 4.10 Cooling Tower 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 0: Reverse operation enabled
b2-09
<1>
Motor Pre-Heat Current 2 10%
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
b5-09 PI Output Level Selection 1: Reverse Output
b5-13 PI Feedback Low Detection Level 2%
b5-14 PI Feedback Low Detection Time 25 s
b5-15 PI Sleep Function Start Level 10.8 Hz
b5-16 PI 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)
<1> Details on this function can be found in the standard Z1000 Programming Manual (SIEPC71061645) at www.yaskawa.com.
4.6 Application Selection
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
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Start-Up Programming & Operation