Hyundai N700E Instruction Manual page 74

N700E INSTRUCTION MANUAL N700E INSTRUCTION MANUAL N700E INSTRUCTION MANUAL N700E INSTRUCTION MANUAL
Analog Input Current / Voltage Select [AT]
• The [AT] terminal selects whether the inverter uses the voltage [O] or current [OI] input terminals for
external frequency control.
When the switch between the terminals [AT] and [CM1] is on, it is possible to set the output frequency by
applying a current input signal at [OI]-[L].
When the terminal is turned off, the voltage input signal at [O]-[L] is available.
Note that you must also set parameter A 01 = 1 to enable the analog terminal set for controlling
the inverter frequency.
Option Terminal
Code Symbol
13 AT
Valid for inputs:
Required setting
Notes:
• If the [AT] option is not assigned to any
intelligent input terminal, then inverter uses the
algebraic sum of both the voltage and current
inputs for the frequency command(and A01=01)
• When using either the analog current and
voltage input terminal, make sure that the
[AT] function is allocated to an intelligent
input terminal.
• Be sure to set the frequency source setting
A01=01 to select the analog input terminals.
Input
Function Name
State
Analog Input
Voltage/current
select
OFF
C01,C02,C03,C04,C05
A01=01
Terminal OI is enabled for current input.
ON
(uses terminal L for power supply return)
Terminal O is enabled for voltage input.
(uses terminal L for power supply return)
Example:
C M 1
14
Description
AT
5 4 3 2
SW 5
1 P2 4