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Parameter Name
Parameter
Modbus
Digital Operator
No.
Address
Display
Stall Prevention
L3-04
0492H
Selection During Decel
StallP Decel Sel
Stall Prevention Level
L3-05
0493H
During Decel
StallP Run Sel
Stall Prevention Level
L3-06
0494H
During Running
StallP Run Level
Speed Agreement
L4-01
0499H
Detection Level
Spd Agree Level
Speed Agreement
L4-02
049AH
Detection Width
Spd Agree Width
Frequency Reference
L4-05
049DH
Loss Detection Selection
Ref Loss Sel
Frequency Reference
L4-06
04C2H
Level at Loss Frequency
Fref at Floss
Number of Auto Restart
L5-01
049EH
Attempts
Num of Restarts
Auto Restart Operation
L5-02
049FH
Selection
Restart Sel
Maximum Restart Time
L5-03
04A0H
After Fault
Max Restart Time
YASKAWA TM.iQp.02 iQpump Drive Programming Manual
Description
0: Disabled (The Drive decelerates at the active deceleration rate, C1-
02 or C1-04. If the load is too large or the deceleration time is too short,
an OV fault may occur.)
1: General Purpose (The Drive decelerates at the active deceleration
rate, C1-02 or C1-04, but if the main circuit DC bus voltage reaches the
stall prevention level the output frequency will clamp. Deceleration
will continue once the DC bus level drops below the stall prevention
level.)
2: Intelligent (The active deceleration rate is ignored and the Drive
decelerates as fast as possible w/o hitting OV fault level.)
0: Disabled (Drive runs a set frequency.) A heavy load may cause the
Drive to trip on an OC fault.
1: Decel Time 1 (In order to avoid stalling during heavy loading, the
Drive will start to decelerate at Decel time 1 (C1-02) if the output
current exceeds the level set by L3-06. Once the current level drops
below the L3-06 level the Drive will accelerate back to its set
frequency at the active acceleration rate.)
2: Decel Time 2 (Same as setting 1 except the Drive decelerates at
Decel Time 2 (C1-04).) For 6 Hz or less frequency, stall prevention
function during run is disabled regardless of L3-05 set.
This function is enabled when L3-05 is "1" or "2".
Drive rated current is set as 100%.
Normally, changing the setting is not required.
Decrease the set value if stalling occurs at factory setting.
Ref Detection
L4-01 and L4-02 are used in conjunction with the multi-function
outputs, (H2-01and H2-02) as a setpoint and hysteresis for a contact
closure.
Determines how the Drive will react when the frequency reference is
lost.
0: Stop (Disabled) - Drive will not run at the frequency reference.
1: Enabled @ % of PrevRef - Drive will run at a percentage (L4-06) of
the frequency reference level at the time frequency reference was lost.
Note: Only available in the Hand Mode (P5-01 = 0).
If Frequency Reference loss function is enabled (L4-05 = 1) and
Frequency Reference is lost, then the Drive will run at reduced
frequency reference determined by L4-06. New Fref=Fref at time of
loss x L4-06.
Note: Only available in the Hand Mode (P5-01 = 0)
Fault Restart
Determines the number of times the Drive will perform an automatic
restart.
Determines if the fault contact activates during an automatic restart
attempt.
0: No Flt Relay - fault contact will not activate during an automatic
restart.
1: Flt Relay Active - fault contact will activate during an automatic
restart.
If the restart fails (or is not attempted due to a continuing fault
condition, e.g. an OV fault) the Drive waits the Maximum Restart Time
After Fault (L5-03) before attempting another restart. This parameter is
not applicable to Loss of Prime Fault.
Setting
Factory
Menu
Range
Setting
Location
0 to 3
1
Programming
0 to 2
1
Programming
30 to 200
120%
Programming
0.0 to
0.0 Hz
Programming
200.0
0.0 to 20.0
2.0 Hz
Programming
0 or 1
0
Programming
0 or 1
0
Programming
Pump Quick
0 to 10
0
Setup
0 or 1
0
Programming
10.0 to
Pump Quick
3600.0
180.0 sec
Setup
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