Rockwell Automation 7763 Medium Voltage OneGear SMC Flex Motor Controller (10-15 kV) - Manual (Page 139)

Rockwell Automation Publication 7760-UM001D-EN-P - October 2014 139
SMC Flex Module Parameter Information Appendix B
Linear List I Shut Off 113 % current 0…37 0
This parameter adjusts the level of current at which
the SMC determines that the SCR has turned off.
Since this parameter has the potential to modify the
SCR control scheme, it is important that
adjustments be made with the help of Technical
Support.
Do not change
without factory
assistance.
Linear List UTS Level 114
% up to
speed
0…100 75
The SMC has the ability to automatically determine
if the motor is up to speed. If there is a problem with
detecting the up-to-speed condition, this
parameter can be modified to compensate. Rule of
thumb is this number should be increased on high
efficiency motors experiencing problems. If the
SMC is detecting the up-to-speed condition too late
(or not at all) this number should be decreased on
very low efficiency motors. Note: Be careful when
adjusting this level. Improper adjustment can cause
the SMC to start at full voltage.
All Parameter Mgmt 115
Ready Load
Default
Ready
Allows the user to load factory default values for all
parameters.
Basic Set Up Backspin Timer 116 Secs 0…999 0
(Only available with the Pump Control option)
Ensures that a specific amount of time passes
between a stop and start sequence.
Linear List V Shut Off Level 117 % V 0…100 25
This parameter provides the user with the ability to
manually adjust the level for the controller’s voltage
shut off detection. Since this parameter has the
potential to modify the SCR control scheme, it is
important that adjustments be made with the help
of Technical Support. It is important that you do not
disable both parameter 113 and this one at the
same time, otherwise SCR firing instability can
occur.
Linear List OL Reset Level 118 % 0…99 75
Sets the level at which the motor overload is
allowed to be reset. Once the TCU% has dropped
below the program level, the device can be reset
manually or will auto reset if programmed for auto-
reset operation.
Linear List
Ambient
Temperature
119 0…60 50
Provides the ability to compensate for a lower or
higher ambient temperature condition. The
ambient temperature programmed should be
representative of the actual nominal temperature
(or worst case condition) since improper
programming can result in nuisance tripping or SCR
damage due to true SCR overheating.
Not applicable to
MV applications
Linear List Notch Position 120 % 40.0…100.0 87.5
This parameter allows for the starting control
algorithm to be manually modified. It is
recommended that you do not make changes to this
parameter without specifically talking with
Technical Support.
Do not change
Linear List
Notch Maximum
(pump control)
121 50…70 70
This parameter allows for the pump stopping
control algorithm to be manually modified. It is
recommended that you do not make changes to this
parameter without specifically talking with
Technical Support.
Do not change
Linear List Start Delay 122 Sec 0…30 0
An internal on-delay timer. Ensures that a
subsequent start can not be initiated for a preset
amount of time.
Group Parameter
Name Parameter
Number Units Min./ Max. Default Settings Parameter Description User Settings