184
Frequency setting by analog input (terminal 2, 4)
Refer to the following table and set
Pr. 73
and
Pr. 267
.
(
indicates main speed setting)
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.
Terminal 4 Input
Pr.73
Setting
Terminal 2
Input
Reversible
Operation
AU signal
OFF
—
0
0 to 10V
Not function
1
(initial value)
0 to 5V
10
0 to 10V
Yes
11
0 to 5V
ON
According to the
Pr. 267
setting
0
—
Not function
0: 4 to 20mA (initial value)
1
(initial value)
1: 1 to 5V
10
—
Yes
2: 2 to 10V
11
- : invalid
* 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. (
)
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.
Setting Causing Component Damage
Operation
Switch setting
Terminal input
I
(current input)
Voltage input
This could cause component damage to the analog signal output circuit of
signal output devices.
(electrical load in the analog signal output circuit of signal output devices
increases)
V
(voltage input)
Current input
This could cause component damage of the inverter signal input circuit.
(output power in the analog signal output circuit of signal output devices
increases)
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Страница 346: ...341 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...