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Basic Functions
3
INVERTER FUNCTIONS
3.3.4 Multi-speed operation (Pr. 4, Pr. 5, Pr. 6)
<Setting>
•Set the running frequencies in the corresponding parameters.
Each speed (frequency) can be set as desired between 0 and 120Hz during inverter
operation.
•Assign the terminals used for signals RH, RM and RL using Pr. 60 to Pr. 63, Pr. 65
and Pr. 505. (*)
Parame
ter
Name
Factory
Setting
Setting
Range
4 3-speed setting (high speed) 60Hz 0 to 120Hz
5 3-speed setting (middle speed) 30Hz 0 to 120Hz
6 3-speed setting (low speed) 10Hz 0 to 120Hz
CAUTION
1. The multi-speeds can also be set in the PU or external operation mode.
2. For 3-speed setting, if two or more speeds are simultaneously selected,
priority is given to the frequency setting of the lower signal.
3. The parameter values be changed during operation.
REMARKS
* When terminal assignment is changed using Pr. 60 to Pr. 63, Pr. 65 and Pr. 505, the other
functions may be affected. Check the functions of the corresponding terminals before
making setting.
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Related parameters
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♦♦
♦
•Maximum, minimum speed setting ⇒Pr. 1 "maximum frequency", Pr. 2 "minimum frequency"
(Refer to page 57.)
•Assignment of signals RH, RM, RL to terminals ⇒Pr. 60 to Pr. 63, Pr. 65, Pr. 505
(input terminal function assignment)
(Refer to page 68.)
•External operation mode setting ⇒ Pr. 79 "operation mode selection" (Refer to page 75.)
•CC-Link mode ⇒ Pr. 79 "operation mode selection" (Refer to page 75.),
Pr. 340 "link start up mode selection" (Refer to page 75.)
•Speed command source ⇒ Pr. 339 "speed command source" (Refer to page 75.)
Used to switch between the predetermined
running speeds.
! Any speed can be selected by merely
switching on/off the corresponding contact
signals (RH, RM, RL, signals).
! Using these functions with Pr. 1 "maximum
frequency" and Pr. 2 "minimum frequency",
up to five speeds can be set.
! Valid in the external operation mode.
ON
ON
ON
RH
RM
RL
Output frequency (Hz)
Speed 1
(high speed)
Speed 2
(middle speed)
Speed 3
(low speed)
Time
Priority: RL > RM > RH