Yaskawa iQpump Controller Programming Manual User Manual

Page 274

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274

YASKAWA TM.iQp.07 iQpump Controller Programming Manual

Stall Prevention

L3-01

048F

Stall Prevention
Selection During Accel
StallP Accel Sel

0: Disabled (Motor accelerates at active acceleration, C1-01 or C1-03.
The motor may stall if load is too heavy or accel time is too short.)
1: General Purpose (When output current exceeds L3-02 level,
acceleration stops. It starts to accelerate at current value recovery.)
2: Intelligent (The active acceleration rate, C1-01 or C1-02, is ignored.
Acceleration is completed in the shortest amount of time w/o
exceeding the current value set in L3-02.

0 ~ 2

1

Programming

119

L3-02

0490

Stall Prevention Level
During Accel
StallP Accel Lvl

This function is enabled when L3-01 is “1” or “2”. Drive rated current
is 100 %. Decrease the set value if stalling occurs at factory setting.

0 ~ 200 %

120 %

Programming

119

L3-04

0492

Stall Prevention
Selection During Decel
StallP Decel Sel

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 ~ 3

1

Programming

120

L3-05

0493

Stall Prevention Level
During Decel
StallP Run Sel

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.

0 ~ 2

1

Programming

121

L3-06

0494

Stall Prevention Level
During Running
StallP Run Level

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.

30 ~ 200 %

120 %

Programming

121

Reference Detection

L4-01

0499

Speed Agreement
Detection Level
Spd Agree Level

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.

0.0 ~

200.0 Hz

0.0 Hz

Programming

122

L4-02

049A

Speed Agreement
Detection Width
Spd Agree Width

0.0 ~

20.0 Hz

2.0 Hz

Programming

122

L4-05

049D

Frequency Reference
Loss Detection Selection
Ref Loss Sel

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).

0 ~ 1

0

Programming

123

L4-06

04C2

Frequency Reference
Level at Loss Frequency
Fref at Freq loss

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)

0 ~ 1

0

Programming

123

Fault Restart

L5-01

049E

Number of Auto Restart
Attempts
Num of Restarts

Determines the number of times the drive will perform an automatic
restart.

0 ~ 10

5

Programming

123

L5-02

049F

Auto Restart Operation
Selection
Restart Sel

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.

0 ~ 1

0

Programming

123

L5-03

04A0

Maximum Restart Time
After Fault
Max Restart Time

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.

10.0 ~

3600.0 s

<0032>

20.0 s

Programming

123

Parameter

No.

Addr.

Hex

Parameter Name

Digital Operator

Display

Description

Setting

Range

Factory

Setting

Menu

Location

Page

No.

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