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Input terminals
REMARKS
*1. The "starting frequency" in Pr. 13 (factory-set to 0.5Hz) may be set between 0 and 60Hz.
*2. If the next start signal is given during DC injection brake operation, the DC injection brake
is disabled and restart is made.
*3. The "DC injection brake operation time" in Pr. 11 (factory-set to 0.5s) may be set between
0 and 10s.
*4. The frequency at which the motor is coasted to a stop is not more than the "DC injection
brake operation frequency" set in Pr. 10 (factory setting = 3Hz; may be set between 0 and
120Hz) or not more than 0.5Hz.
*5. The "starting frequency" in Pr. 13, "DC injection brake operation time" in Pr. 11 and "DC
injection brake operation frequency" in Pr. 10 are the factory-set values.
(2) Three-wire type connection (STF, STR, STOP)
A three-wire type connection is shown on
the right. Assign the start self-holding
signal (STOP) to any of the input terminals.
To make a reverse rotation start, set Pr. 63
to "- - -" (factory setting).
1) Turning the STOP signal on makes start
self-holding function valid. In this case,
the forward/reverse rotation signal
functions only as a start signal.
(Note) Assign the stop signal to any of
Pr. 60 to Pr. 62 (input terminal
function selection).
2) Even if the start signal STF (STR) is
turned on once then off, the start signal
is kept on and starts the inverter. When
changing the direction of rotation, turn
the start signal STR (STF) on once and
then off.
3) To stop the inverter, turning off the STOP
signal once decelerates it to a stop.For
the frequency setting signal and the
operation of DC injection brake at a stop
time, refer to paragraphs 2) to 4) in (1)
Two-wire type connection. The right
diagram shows 3-wire type connection.
4) When the JOG signal is on, the STOP signal is invalid and the JOG signal has
precedence.
5) When the output stop signal MRS is turned on, the inverter output is shutoff.
However, self-holding function is not deactivated and the start signal is held.
Reverse
rotation start
MCCB
Time
STF
STR (Pr.63= "- - -" )
STOP
Start
Stop
ON
ON ON
OFF
Power
supply
Inverter
Output frequency
Stop
Forward
rotation start
3-wire type connection example
SD
R, S, T