Siemens SAMMS-MV Benutzerhandbuch
28
3 Operating the SAMMS-MV Device
function. Pressing the LIST key returns the active setting to the
display.
There is one occasion when the LIST key is disabled making the
corresponding functions inoperative. In a SAMMS-MV device
with autoreset disabled at the factory, the LIST key has no effect
for F8.
3.28.3 UP and DOWN Keys
Use the UP and DOWN keys to step through the functions while
the HHC is in the function mode. When the HHC is in the display
mode, use the UP and DOWN keys to step through the values
for a selected function. You can use the keys in three ways:
1. Single step - press the key and release it.
2. Slow scroll - press the key and hold the key down for no
longer than a two or three seconds.
3. Fast scroll - press the key and hold the key down long
enough for the HHC to step through more than five steps.
The following information discusses how to operate the UP and
DOWN keys in the function and display modes.
1. In the function mode, the UP key increases the function
number by one and the DOWN key decreases the function
number by one. If F0 appears on the display, pressing the
DOWN key rolls the function over to the highest-numbered
function, F27. If the highest-numbered function (F27) ap-
pears in the display, pressing the UP key rolls the function
over to the lowest-numbered function (F0).
2. In the display mode, use the UP and DOWN keys to step
through the range of settings for each set point function. You
also use the UP and DOWN keys to step through the
individual line currents and the average line current of F15.
Just as the UP and DOWN keys cause the function numbers
to roll over, they also cause the range of settings to roll over.
3.28.4 Using the ENTER Key
Use the ENTER key to change settings on the HHC display. The
SAMMS-MV device disables the ENTER key under the follow-
ing conditions:
1. The ENTER key is disabled while the device is in the function
mode.
2. The ENTER key is disabled for non-setting functions that
display a parameter.
3. The ENTER key is disabled while the motor is running to
prevent settings from being changed while the motor is
running.
Use the following procedure to change a setting. This example
shows you how to change the full-load current setting from
112A to 67A.
press the (F)unction key. The display shows the number of
the function most recently selected, (e.g. F9).
2. Use the UP or DOWN key (as described above) to step or
scroll to the desired function. The display shows the desired
function, (e.g. F4).
3. Press the LIST key. The display shows the active setting for
the selected function, (e.g. 112, representing a full-load
current setting of 112A for a motor controlled by a size H3B
contactor.)
4. Use the UP or DOWN key (as described above) to step or
scroll to the desired setting. The display shows the desired
setting, (e.g. 67 for 67A).
5. To view the active setting, press the LIST key. The number
112 appears on the display.
6. Repeat step 4 to return to the desired setting.
7. To enter the desired setting (67) which is displayed, press
the ENTER key. The display becomes blank while you hold
down the ENTER key and the SAMMS-MV device stores the
new setting.
8. Press the LIST key to show the new setting (67) on the
display.
9. To move to the other functions, press the (F)unction key. The
display shows, in the example, F4.
10. Press the UP and DOWN keys to step through the function
numbers. The SAMMS-MV device is in the function mode.
11. 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 display mode.
3.29 Using the SAMMS-MV Device Func-
tions
This section lists the 28 major motor control and protection
functions and several related functions (F0-F27, F6A, F9A,
F12A, F23A, and F24A) and how to use them. The functions
available for each version of the SAMMS-MV device are shown
and its associated range, step size, and default value.
To access a function perform the following steps:
1. Connect the HHCs cable to the communications port on
the front of the SAMMS-MV device.
2. Locate the desired function using the (F)unction and UP and
DOWN keys.
3. Then locate and follow the steps provided with the function
you wish to perform.