LEESON SM-Plus Series Sub-Micro Inverters - Manual (Page 53)

17.0 SM-Plus ™ DISPLAY MESSAGES
The following describes the various displays and messages that can appear on the SM-Plus ™ drive.
17.1 SPEED DISPLAY
If the drive is in a STOP state (indicated by “_ _ _” on the display), and the commanded speed is
changed, the display will show the commanded speed, and the upper left decimal point will turn on solid.
About five seconds after a change is made, the display will begin to alternate between the commanded
speed value and the “_ _ _” display. If the Mode button is pressed, the display will stop alternating and
show the “_ _ _” display only.
When the drive is given a START command, the displayed speed will start increasing as the drive
accelerates up to the commanded speed. If the commanded speed is changed while the drive is
running, the display will show the commanded speed rather than the actual speed, until the actual
speed reaches the commanded speed.
If the commanded speed is changed faster than the drive can accelerate or decelerate, the upper left
decimal point will blink to indicate that the drive is accelerating or decelerating to the new speed. Once
the actual speed reaches the commanded speed, the upper left decimal point will turn on solid for 5
seconds and then turn off to indicate that the commanded speed has been reached, and that the display
is now showing the actual speed.
17.2 CHANGING THE SPEED REFERENCE SOURCE
When the speed source is changed while the drive is running, the display will flash the message for
the new speed source to indicate that the new speed source is active. Also, if the drive is being controlled
from a speed source other than the
▲ and ▼ buttons (0-10 VDC, 4-20 mA, etc), and one of the ▲ or
▼ buttons is pressed, the display will flash the present speed source message to indicate that the ▲ and
▼ buttons are invalid.
Example 1: The drive is running and the present speed source is the keypad. TB-13A is programmed to
select a 4-20 mA signal as the speed source. When TB-13A is closed to TB-2, the display will flash “EI”
to indicate that the speed source has changed to the 4-20 mA signal. If the contact between TB-13A and
TB-2 is opened, the display will flash “CP” to indicate that the speed source has changed back to the
▲
and ▼ buttons.
Example 2: The speed source is a 0-10 VDC signal. If the ▲ or ▼ button is pushed, the display
will flash “EU” to indicate that the present speed source is the 0-10 VDC signal and that the ▲ and ▼
buttons are invalid.
Refer to the table on the next page for the possible speed reference source displays:
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