Analog Input Current/Voltage Select - Hitachi L300P Series Instruction Manual

Analog Input
The [AT] terminal operates in conjunction with parameter setting A005 to determine the analog
input terminals that are enabled for current or voltage input. Setting A006 determines whether
Current/Voltage
the signal will be bipolar, allowing for a reverse direction range. Note that current input signal
Select
cannot be bipolar and cannot reverse direction (must use [FW] and [RV] command with current
input operation). The following table shows the basic operation of the [AT] intelligent input.
Please refer to
configuration, and the operating characteristics of analog inputs.
"Analog Input Operation" on page 4–51
Opt.
Symbol Function Name
Code
16 AT Analog Input
Voltage/current
Select
C001, C002, C003, C004,
Valid for
C005
inputs:
A001 = 01
Required
A005 = 00 / 01
settings:
A006 = 00 / 01 / 02
Notes:
• Be sure to set the frequency source setting
A001=01 to select the analog input terminals.
L300P Inverter
for more information on bipolar input
Input
Description
State
ON • With A005 = 00, [AT] will enable
terminals OI–L for current input,
4 to 20mA
• With A005=01, [AT] will enable termi-
nals [O2]–[L] for voltage input
OFF Terminals [O]–[L] are enabled for voltage
input (A005 may be equal to 00 or 01) in
this case
Example: (Default input configuration
shown—see page 3–43. Jumper posi-
tion shown is for –xFU/-xFR models;
for –xFE models, see page 4–11.)
TH FW
5
P24 PLC CM1
See I/O specs on page 4–8.
4–25
AT
4 3 2 1