u
Setting 5: Cooling Tower Fan with PI Control Application
Table 4.12 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
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)
u
Setting 6: Pump (Secondary) Application
Table 4.13 Pump (Secondary): Parameter Settings
No.
Parameter Name
Default Setting
b1-04
Reverse Operation Selection
1: Reverse operation disabled
C1-01
Acceleration Time 1
20 s
d2-03
Master Speed Reference Lower Limit
20%
L5-01
Number of Auto Restart Attempts
10
L6-01
Stall Prevention Selection during Deceleration
5: UL3 at speed agree (Alarm)
u
Setting 7: Pump with PI Control Application
Table 4.14 Pump with PI Control: Parameter Settings
No.
Parameter Name
Default Setting
b1-04
Reverse Operation Selection
1: Reverse operation disabled
b5-01
PI Function Setting
1: Enabled (PI output becomes output frequency reference)
b5-03
Integral Time Setting (I)
15 s
b5-08
PI Primary Delay Time Constant
10.0 s
b5-13
PI Feedback Low Detection Level
2%
b5-14
PI Feedback Low Detection Time
25 s
b5-15
PI Sleep Function Start Level
72%
b5-16
PI Sleep Delay Time
25.5 s
C1-01
Acceleration Time 1
20 s
d2-03
Master Speed Reference Lower Limit
20%
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
126
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual