Hitachi SJ700D-004L, Instruction Manual

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Chapter 3 Operation
3-19
Setting frequency command
(A) A001=02: Digital operator
With this setting, the value set in the parameter F001 defines the target frequency of the inverter.
The procedure below shows an example of a procedure to set F001=40Hz.
Procedure Key operation Indication Details
2-1

.

After powering up of the inverter, the operator displays
0.00, output frequency monitor (d001)
2-2

Indication changes from data (0.00) to parameter (d001).
2-3
or

Push the key and select F001 (setting frequency).
2-4

.

Push the key and indication changes setting frequency.
2-5
or

.

(Example) Set the frequency to 40Hz.
2-6

Push the key and indication goes back to F001 (Data save).
note)
2-7

.

By pushing the key for more than three seconds,
the indication changes to the output frequency data.
note) In case of the setting A001=02, on displaying the output frequency, the setting frequency can change by the up
and down keys.
(B) A001=01: Control terminal
The frequency command can be changed in accordance with the analog input given to the O/OI terminal on the
control terminal by using a potentiometer (connected to H/O/L terminal) or an analog voltage / current supply. With
this setting, the parameter F001 indicates the frequency command value given via the control terminal. Please refer
to
4.2.11 External analog inputsetting (O, OI, and O2) or 4.2.14 Start/end frequency setting for external analog input.
(C) Multi-speed selection – Binary operation
The inverter can store several target frequencies (up to 16), which is useful to define such low / middle / high
frequencies and those frequencies are switched by external signals. The actual target frequency is selected from
those pre-set frequencies in accordance with the signal status of the multi speed inputs. This part describes an
example using 3 frequency sets.
Parameters Condition Setting
A001 Operator

*1)
A020 Multi speed 1 and 2 are not active.

.

*2)
A021
Multi speed 1is active and
multi speed 2 is not active.

.

*2)
A022
Multi speed 1is not active and
multi speed 2 is active.

.

*2)
*1) In case multi speed 1 and 2 are not active, the setting of A001 defines the frequency command source.
In case of A001=02, and if multi speed 1 and 2 are not active, F001 adopts the A020 value.
*2) Initial settings are 0.00Hz. You should set the appropriate data.
1 2
1 2
STR
FUNC
FUNC
FUNC