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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)-PC
· Frequency command by terminal RH, RM, RL and STR-PC
· [EXT] must be lit. (When [PU] is lit, switch it to [EXT] with
· The initial values of the terminals RH, RM, RL are 50Hz, 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
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 "40Hz" in Pr. 4 Multi-speed setting (high speed) and turn on terminal RH and STF (STR)-SD to
operate.
Operation
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.
Press
to choose the parameter
setting mode.
3.
Turn
until
4.
Press
to read the currently set value.
"
"(initial value) appears. (50.00Hz)
5.
Turn
to change it to
the setting value "
6.
Press
to set.
Inverter
R/L1
U
Motor
S/L2
V
T/L3
W
STF
STR
RH
RM
RL
PC
ON
to change to the
(Refer to page 56.)
(Pr. 4) appears.
". (40.00Hz)
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
The parameter number
read previously appears.
Flicker ··· Parameter setting complete!!
(external operation)
Speed 5
Speed 6
Speed 4
Speed 7
Time
ON
ON
ON
ON
ON
ON
ON
ON
43
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