Mitsubishi Electric FR-S500 Series Instruction Manual page 35

Operation by the start command of the terminal block
(external operation)
4.4.2 Use switches to give a start command and a frequency
command (multi-speed setting)
POINT
•Start command by terminal STF (STR)-SD
•Frequency command by terminal RH, RM, RL-SD.
•[EXT] must be lit. (When [PU] is lit, switch it to [EXT] with
•The initial values of the terminals RH, RM, RL, are 60Hz, 30Hz, and 10Hz. (Use
Pr. 4, Pr. 5, and Pr. 6 to change.)
•Operation at 15-speed can be performed by turning two (or three) terminals
simultaneously. (Refer to the instruction Manual(detailed).)
[Connection diagram]
Three-phase
AC power supply
Forward
rotation start
Reverse
rotation start
High speed
Middl speed
Low speed
Changing Set "50Hz" in Pr. 4 "Multi-speed setting (high speed)" and turn on terminal
example RH and STF (STR)-SD to operate.
Operation
1.
Power on operation mode check
For the factory setting, the inverter operates
in the external operation mode [EXT] when
powering on. Check that the operation
command indication is [EXT].
If not displayed, press
external [EXT] operation mode. If the operation
mode still does not change, set Pr. 79 to change
to the external operation mode.
2.
Press to choose the parameter
MODE
setting mode.
3.
Turn until
4.
Press to read the currently set value.
SET
" " (factory setting) appears. (60.0Hz)
Inverter
R
U
S V
W
T
STF
STR
RH
RM
RL
SD
to change to the
(Refer to page 46)
. (Pr. 4) appears.
Speed 1
(High speed)
Motor
ON
RH
ON
RM
RL
ON
MODE
SET
30
PU
.)
EXT
Speed 5
Speed 2
Speed 6
(Middle speed)
Speed 4
Speed 3
(Low speed)
Speed 7
ON ON ON
ON ON ON
ON ON ON
Display
RUN
PU
EXT
The parameter
number read
previously appears.
Time