No.
(Addr.
Hex)
Name LCD Display Description Values Page
P4-03
(0CFC)
Pre-Charge Time Pre-Charge Time
Sets the time at which the drive will spend at the Pre-Charge
Frequency 1 during pre-charge. Maximum pre-charge time is
P4-03 + P4-07.
When P1-01 is set to 3 (MEMOBUS network), the function is
active only on the first drive to run in the network.
Setting this parameter to 0.0 disables the function.
Default: 0.0 min
Min.: 0.0
Max.: 3600.0
229
P4-05
(0CFE)
Pre-Charge Loss of
Prime Level
Pre-Charge LOP
Detects loss of prime in the pump during Pre-charge 1.
When the measured quantity determined by P1-18 drops below
this level for the time set in P1-20 and the output frequency is
at the level set in P4-02, a “Loss of Prime” condition occurs.
The drive responds to the “Loss of Prime” condition depending
on the setting of P1-22, Loss of Prime Selection.
Default: 0.0 A
<2>
Min.: 0.0
Max.: 1000.0
232
P4-06
(0CFF)
Pre-Charge Frequency 2 Pre-Charge Freq2
Sets the frequency reference used when the Pre-Charge function
2 is active.
Setting this parameter to 0.0 disables the function.
Default: 0.0 Hz
Min.: 0.0
Max.: [E1-04]
232
P4-07
(0D00)
Pre-Charge Time 2 Pre-Charge Time2
Sets the time at which the drive will spend at the Pre-Charge
frequency 2 during pre-charge. Maximum pre-charge time is
P4-03 + P4-07.
Default: 0.0 min
Min.: 0.0
Max.: 3600.0
232
P4-08
(0D01)
Pre-Charge Loss of
Prime Level 2
Pre-Charge LOP 2
Detects loss of prime in the pump.
When the measured quantity determined by P1-18 drops below
this level for the time set in P1-20 and the output frequency is
at the level set in P4-06, a “Loss of Prime” condition occurs.
The drive responds to the “Loss of Prime” condition depending
on the setting of P1-22, Loss of Prime Selection.
Default: 0.0 A
<2>
Min.: 0.0
Max.: 1000.0
232
P4-10
(0D03)
AUTO Mode Operator
Run Power Down
Storage
AMO PwDn-Storage
0: Disabled
1: Enabled
Stores the run status in AUTO Mode when operating from the
HOA keypad (b1-02 = 0).
0: Disabled
1: Enabled
WARNING! Sudden Movement Hazard. If the drive is
powered down while running, it will automatically initiate
an internal Run command upon power-up.
Default: 0
Range: 0, 1
232
P4-11
(0D04)
Thrust Bearing
Acceleration Time
Thrust Acc. Time
Sets the time at which the drive output frequency will ramp up
to the reference frequency set in P4-12.
Default: 1.0 s
Min.: 0.0
Max.: 600.0
232
P4-12
(0D05)
Thrust Bearing
Frequency
Thrust Freq.
The drive will accelerate to this frequency in the time set to
P4-11. The drive will decelerate from the frequency in the time
set to P4-13.
Default: 30.0 Hz
Min.: 0.0
Max.: [E1-04]
233
P4-13
(0D06)
Thrust Bearing
Deceleration Time
Thrust Dec Time
Sets the amount of time it takes to bring the drive from the Thrust
Frequency set in P4-12 to stop when Thrust Mode is active.
When the Run command is removed while the drive is operating
in Thrust Mode above the Thrust Frequency, the time set in this
parameter is used when the frequency reference is at or below
the thrust frequency.
Default: 5.0 s
Min.: 0.0
Max.: 600.0
233
P4-17
(0D0A)
Utility Start Delay Utility Delay
Sets the amount of time that the drive will delay starting if a Run
command is present at power-up.
When P1-01, Pump Mode, is set to 3 (MEMOBUS network),
the drive is unavailable to the network (Pump Off Network)
when the function is active.
Setting this parameter to 0.0 disables the function.
Default: 0.2 min
Min.: 0.0
Max.: 1000.0
233
P4-21
(0D0E)
Low City Input Select
Low City In Sel
0: Normally Open
1: Normally Closed
Selects the type of pressure switch connected to the “Low City
Press” digital input (H1-0o = 73).
0: Normally open (closed indicates the Low City Pressure
condition)
1: Normally closed (open indicates the Low City Pressure
condition)
Default: 1
Range: 0, 1
233
P4-22
(0D0F)
Low City On-Delay
Time
Low City On Dly
Sets the amount of time a Low City Pressure condition needs to
be present before the drive will stop.
Default: 10 s
Min.: 1
Max.: 1000
233
P4-23
(0D10)
Low City Off-Delay
Time
Low City Off Dly
Sets the amount of time a Low City Pressure condition needs to
be absent before the drive will restart.
Default: 5 s
Min.: 0
Max.: 1000
234
B.12 P: Pump Parameters
360
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
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