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Frequency setting by analog input (terminal 2, 4)
NOTE
Set Pr. 267 and a voltage/current input switch correctly, then input an analog signal in accordance with the setting.
Incorrect setting as in the table below could cause component damage. Incorrect settings other than below can
cause abnormal operation.
Setting Causing Component Damage
Switch setting
I (current input)
V (voltage input)
Refer to the following table and set Pr. 73 and Pr. 267.
(
indicates main speed setting)
Terminal 4 Input
AU signal
OFF
ON
* If the input specification to terminal 4 is changed from the current input (Pr. 267 = "0") to the 0 to 5V or 0 to 10V voltage input (Pr.267 = "1
or 2"), calibrate the input with C6. (Refer to page 188)
REMARKS
Turn ON the AU signal to make the terminal 4 function valid. The AU signal is assigned to the terminal AU in the initial setting.
By setting "4" in any of Pr.178 to Pr.182 (input terminal function selection), the AU signal can be assigned to other terminals.
Use Pr. 125 (Pr. 126) (frequency setting gain) to change the maximum output frequency at input of the maximum output frequency
command voltage (current). At this time, the command voltage (current) need not be input.
Also, the acceleration/deceleration time, which is a slope up/down to the acceleration/deceleration reference frequency, is not
affected by the change in Pr. 73 setting.
The terminal 2 does not accept analog output frequency commands when Pr.561 PTC thermistor protection level "9999."
NOTE
Make sure that the parameter and switch settings are the same. Different setting may cause a fault, failure or
malfunction.
Always calibrate the input after changing the voltage/input input signal with Pr. 267 and the voltage/current input
selection switch.
Changing the terminal assignment using Pr. 178 to Pr. 182 (input terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
184
Terminal input
This could cause component damage to the analog signal output circuit of
signal output devices.
Voltage input
(electrical load in the analog signal output circuit of signal output devices
increases)
This could cause component damage of the inverter signal input circuit.
Current input
(output power in the analog signal output circuit of signal output devices
increases)
—
According to the Pr. 267 setting
0: 4 to 20mA (initial value)
1: 1 to 5V
2: 2 to 10V
Operation
Pr.73
Terminal 2
Setting
Input
0
0 to 10V
1
0 to 5V
(initial value)
10
0 to 10V
11
0 to 5V
0
1
—
(initial value)
10
—
11
Reversible
Operation
Not function
Yes
Not function
Yes
- : invalid
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