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34
Operations and Monitoring
Standard 3-wire control – By default, the
L100DN inverter comes with [STP] (Stop
Motor) assigned to terminal [2]. The Stop
command causes the motor to decelerate to
a stop when the inverter is in Run Mode.
When the inverter is controlled via keypad,
an operator will normally use the Stop/
Reset key on the front panel.
The diagram below shows the use of 3-wire control. STA (Start Motor) is an edge-sensi-
tive input; an OFF-to-ON transition gives the Start command. The control of direction is
level-sensitive, and the direction may be changed at any time. STP (Stop Motor) is also a
level-sensitive input, and the Stop signal has priority over the Start signal.
Frequency
When both STA and STP signals are ON, the STP signal has priority (motor output will
be OFF). However, the motor output resumes after STP signal is no longer active if the
STA input is still ON.
Output
Frequency
STA
STP
F/R
Output
STA
STP
F/R
Example (default input configuration shown—
see Chapter 3 in L100 Instruction Manual):
STP
L
3
2
1
P24
t
t
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