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3 Operating the SAMMS-MV Device
1.Press the LIST key to view the sensor in use for overload
relay #2. If standard SAMMS sensors are used, the display
will read OFF. If 5A secondary CTs are in use, the CT
primary current will be displayed.
2.To change the setting, you must be in program mode.
3.Press the UP or DOWN key to scroll through the range of
settings, until the selected setting appears on the display.
4.Press the ENTER key to change the active setting to the
selected setting. The display becomes blank while you hold
down the ENTER key and the SAMMS-MV device stores the
new setting.
5.To exit the program mode, press and hold the (F)unction key
for several seconds. The display will show Prog. Press the
UP or DOWN key to change to the display mode.
6.Press the (F)unction key to step through to another function.
F6 - Service Factor
1.Press the LIST key to view the active service factor, 1.0 or
1.15. The factory default is 1.15. A service factor of 1.15
adjusts the overload trip thresholds up by 15% over their
values for a service factor of 1.0. This results in more margin
before tripping.
2.To change the setting, you must be in program mode.
3.To change the setting, press the UP or DOWN key to
alternate between the two choices until the selected value
is displayed.
4.Press the ENTER key to change the active setting to the
selected value. The display becomes blank while you hold
down the ENTER key, and the SAMMS-MV device stores
the new setting. (If you make an incorrect selection, repeat
steps 3 and 4.)
5.To exit the program mode, press and hold the (F)unction key
for several seconds. The display will show Prog. Press the
UP or DOWN key to change to the display mode.
6.Press the (F)unction key to step through to another function.
F6A - Motor Type
1.Press the LIST key to view the motor type in use. The factory
default is OdP for open drip proof. EFC designates
totally enclosed fan cooled.
2.To change the setting, you must be in program mode.
3.To change the setting, press the UP or DOWN key to
alternate between the two choices until the selected value
is displayed.
4.Press the ENTER key to change the active setting to the
selected value. The display becomes blank while you hold
down the ENTER key, and the SAMMS-MV device stores
the new setting. (If you make an incorrect selection, repeat
steps 3 and 4.)
5.To exit the program mode, press and hold the (F)unction key
for several seconds. The display will show Prog.Press the
UP or DOWN key to change to the display mode.
6.Press the (F)unction key to step through to another function.
F7 - Overload Trip Class
The trip class is the time in seconds that it takes the overload
relay to trip for a starting current of 600% of the full-load current
setting. The range of possible values is 2-23.
1.Press the LIST key to view the active trip class.
2.To change the setting, you must be in program mode.
3.To change the setting, press the UP or DOWN key to scroll
through the range of settings until the selected setting
appears.
4.Press the ENTER key to change the active setting to the
selected value. The display becomes blank while you hold
down the ENTER key, and the SAMMS-MV device stores
the new setting. (If you make an incorrect selection, repeat
steps 3 and 4.)
5.To exit the program mode, press and hold the (F)unction key
for several seconds. The display will show Prog.Press the
UP or DOWN key to change to the display mode.
6.Press the (F)unction key to step through to another function.
F7A - Cold Stall Time
1.Press the LIST key to view the active cold stall time in use.
(The range of possible values is between 5 and 100 seconds
in increments of one second. The factory default value is 10
seconds. If the cold stall time is more than 100 seconds,
enter 100.
2.To change the setting, you must be in program mode.
3.To change the setting, press the UP or DOWN key to scroll
through the range of settings until the selected setting
appears.
4.Press the ENTER key to change the active setting to the
selected value. The display becomes blank while you hold
down the ENTER key, and the SAMMS-MV device stores
the new setting. If the overload class selected exceeds the
cold stall time, the word SUrE appears on the display
requiring reentry before accepting the data.
Important: The word SUrE is used as a reminder that
supplemental protection is required if the motor acceleration
time (overload class) exceeds the allowable stall time for the
motor. A speed switch should be used as an input source to
open the contactor if the switch senses a locked rotor or stall
condition.
5.To exit the program mode, press and hold the (F)unction key
for several seconds. The display will show Prog. Press the
UP or DOWN key to change to the display mode.
6.Press the (F)unction key to step through to another function.