Yaskawa E7 Drive User Manual - Manual (Page 189)

Parameters A - 21
Ref Detection
L4-01
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 to 200.0 0.0Hz Programming
L4-02
Speed Agreement Detection Width
Spd Agree Width
0.0 to 20.0 2.0Hz Programming
L4-05
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.
0 or 1 1 Programming
L4-06
Frequency Reference Level at
Loss Frequency
Fref at Floss
If Frequency Reference loss function is enabled
(L4-05=1) and Frequency Reference is lost, then the
drive will run at reduced frequency reference deter-
mined by L4-06. New Fref =Fref at time of loss x L4-06.
0 to 100.0% 80.0% Programming
Fault Restart
L5-01
Number of Auto Restart Attempts
Num of Restarts Determines the number of times the drive will perform
an automatic restart.
0 to 10 0 Quick Setting
L5-02
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 or 1 0 Programming
L5-03
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 L5-03 seconds before attempting another restart.
0.5 to 600.0 180.0sec Quick Setting
Torque Detection
L6-01
Torque Detection Selection 1
Load Detection
Determines the drive's response to an overtorque /
undertorque condition. Overtorque and Undertorque are
determined by the settings in parameters L6-02 and
L6-03.
0: Disabled
1: OL@SpdAgree - Alm (Overtorque Detection only
active during Speed Agree and Operation continues
after detection).
2: OL At RUN - Alm (Overtorque Detection is always
active and operation continues after detection)
3: OL@SpdAgree - Flt (Overtorque Detection only
active during Speed Agree and drive output will shut
down on an OL3 fault).
4: OL At RUN - Flt (Overtorque Detection is always
active and drive output will shut down on an OL3
fault.)
5: LL@SpdAgree - Alm (Undertorque Detection is
only active during Speed Agree and operation contin-
ues after detection).
6: LL at RUN - Alm (Undertorque Detection is always
active and operation continues after detection)
7: LL @ SpdAgree - Flt (Undertorque Detection only
active during Speed Agree and drive output will shut
down on an OL3 fault).
8: LL At RUN - Flt (Undertorque Detection is always
active and drive output will shut down on an OL3
fault).
0 to 8 0 Programming
L6-02
Torque Detection Level 1
Load Det Lvl Sets the overtorque/undertorque detection level as a
percentage of Drive rated current.
0 to 300 15% Programming
L6-03
Torque Detection Time 1
Loss Det Time
Sets the length of time an overtorque / undertorque
condition must exist before being recognized by the
drive. OL3 is then displayed.
0.0 to 10.0 10.0sec Programming
Table A.1 Parameter List (Continued )
Parameter
No.
Parameter Name
Digital Operator Display
Description
Setting
Range
Factory
Setting
Menu
Location
TM_E7_01_07182008.book Page 21 Wednesday, July 23, 2008 2:35 PM