Yaskawa iQpump Controller Programming Manual - Manual (Page 223)

YASKAWA TM.iQp.07 iQpump Controller Programming Manual 223
Figure 1.169
Figure 173. De-Scale Function Enabled (P7-01 = 2)
Table 96 Related Parameters <0034>
Table 97 Function Text
Table 98 Faults <0034>
Parameter
No.
Addr.
Hex
Parameter Name
Digital Operator Display
Description
Setting
Range
Factory
Setting
Menu
Location
P7-01 84F
Anti-Jam / De-Scale Operation
Selection
Anti-Jam / De-Scale
Selects if the Anti-Jam or De-Scale functions are enabled.
0: Disabled
1: Anti-Jam Enabled
2: De-Scale Enabled
3: Force De-Scale
0 ~ 3 0 Programming
P7-02

850
Anti-Jam / De-Scale Cycle
Count
AJ / DeScaleCycles
Sets the current level (at start) that will trigger the Anti-Jam function.
Set as a percentage of motor rated current.
1 ~ 100 1 Programming
P7-03

851
Anti-Jam Detection Current
Level
A-J Detection 1
Sets the current level (at start) that will trigger the Anti-Jam function.
Set as a percentage of motor rated current.
50 ~ 200% 120% Programming
P7-04

852
Anti-Jam Detection Time
A-J Det. Time Sets the amount of time the current has to be above the P7-03 level to
trigger the Anti-Jam function.
0.1 ~ 2.0 s 0.3 s Programming
P7-05

853
Anti-Jam / De-Scale Frequency
Reference
AJ / DeScale Freq
Sets the speed during the De-Scale operation and during reverse
operation of the Anti-Jam function. 0.00 ~
120.00 Hz 25.00 Hz Programming
P7-06

445
De-Scale Forward Run Time
DeScale Fwd Run Sets the amount of time the drive will run in forward each cycle
during the De-Scale function.
1 ~ 6000 s 10 s Programming
P7-07

855
De-Scale Reverse Run Time
DeScale Rev Run Sets the amount of time the drive will run in reverse each cycle
during the De-Scale function.
1 ~ 6000 s 10 s Programming
P7-08

856
De-Scale Acceleration Time
DeScale Accel
Sets the amount of time it will take the drive to accelerate from zero
to the De-Scale frequency reference P7-05. (internally limited 0.1 ~
6000.0 s)
0.0 ~ 600.0
s
2.0 s Programming
P7-09

857
De-Scale Deceleration Time
DeScale Decel
Sets the amount of time it will take the drive to decelerate from zero
to the De-Scale frequency reference P7-05. (internally limited 0.1 ~
6000.0 s)
0.0 ~ 600.0
s
2.0 s Programming
P7-10

858
De-Scale Pump Run Time
DeScale Time Sets the number of pump operating hours (pump speed > 0) before a
De-Scale routine will run. 0.1 ~
2000.0 hr.
168.0 hr. Programming
P7-11

859
Anti-Jam Release Time
Anti-Jam Release Sets the amount of time that the current must be below the P7-03
level in order to resume normal operation. 0.5 ~ 10.0
s
2.0 s Programming
 Denotes that parameter can be changed when the drive is running.
Function Number
Function Name
Digital Operator Display
P7
Anti-Jam / De-Scale
Anti-Jam / De-Scale
Fault Display Description Cause Countermeasures
AJF
Anti-Jam Fault
Anti-Jam Fault
The drive was not able to clear the debris from the impeller in less
than the P4-22 attempts.
Check for proper pump operation
Adjust the P4-23 level or the P4-
22 counts.
Run
Command
P7-05
De-scale Freq.
-P7-05
De-scale Freq.
P
7-
08 P7
-0
9
P
7-0
8 P7
-0
9
P7-06
De-Scale Fwd Run
P7-07
De-Scale Rev Run
P7-06
De-Scale Fwd Run
P7-07
De-Scale Rev Run
P7-06
De-Scale Fwd Run
P7-07
De-Scale Rev Run
P4-04
Thrust
C
1-
01
Output
Frequency
De-Scale
Alarm
Normal Operation
Resumes
Cycle
1
Cycle
2
Cycle
3
Run command issued
for the number of times
programmed into P7-10
.
During the de-scale operation, all other iQPump functions are disabled:
PI Control, Pre-Charge, Thrust, etc...
De-scale Function Enabled: P7-01 = 2
P7-02 = 3
A-J Cycle Count
C1-02
P4-06
Thrust