Use Switches To Give A Start Command And A Frequency Command (Multi-Speed Setting) (Pr. 4 To Pr. 6) - Mitsubishi Electric FR-A700 Instruction Manual

3.5.2 Use switches to give a start command and a frequency command
(multi-speed setting) (Pr. 4 to Pr. 6)
POINT
· Start command by terminal STF (STR)-SD
· Frequency command by terminal RH, RM, RL and STR-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 7-speed can be performed by turning two (or three) terminals simultaneously. (Refer to section 4 of
Instruction Manual (applied).)
[Connection diagram]
Three-phase
AC power supply
Forward
rotation start
Reverse
rotation start
High speed
Middle speed
Low speed
Changing example Set "50Hz" in Pr. 4 Multi-speed setting (high speed) and turn on terminal RH and STF (STR)-SD to
operate.
1.
Power on → operation mode check
For the initial 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.
Change the Pr. 4 setting to "
(Refer to page 43 for change of the setting.)
3.
Turn on the high speed switch (RH).
4.
Turn the start switch (STF or STR) on.
50Hz appears.
• 30Hz appears when RM is on and 10Hz
appears when RL is on.
5.
Stop
Turn the start switch (STF or STR) off.
The motor stops according to Pr. 8
Deceleration time.
Inverter
R/L1 U
Motor
S/L2 V
T/L3 W
STF
STR
RH
RM
RL
SD
Operation
to change to the
".
Make a start and stop with terminals
.)
Speed 1
(High speed)
Speed 2
(Middle speed)
Speed 3
(Low speed)
ON
RH
ON
RM
ON
RL
Display
ON
High speed
Middle speed
ON
Low speed
Forward rotation
Reverse rotation
ON
Forward
rotation Reverse
rotation
OFF
(external operation)
Speed 5
Speed 6
Speed 4
Speed 7
Time
ON ON ON
ON ON ON
ON ON
Stop
3
79