Hitachi L200 Series Instruction Manual page 158

4–30
Using Intelligent Input Terminals
It is possible for the inverter to retain the frequency set from the [UP] and [DWN] termi-
nals through a power loss. Parameter C101 enables/disables the memory. If disabled, the
inverter retains the last frequency before an UP/DWN adjustment. Use the [UDC]
terminal to clear the memory and return to the original set output frequency.
Option Terminal
Code Symbol
27 UP
28 DWN
29 UDC
Valid for inputs:
Required settings:
Notes:
•
This feature is available only when the frequency
command source is programmed for operator
control. Confirm A001 is set to 02.
•
This function is not available when [JG] is in use.
•
The range of output frequency is 0 Hz to the value
in A004 (maximum frequency setting).
•
The minimum ON time of [UP] and [DWN] is 50 ms.
•
This setting modifies the inverter speed from using F001 output frequency setting as a starting point.
Input
Function Name
State
Remote Control ON
UP Function (motor-
ized speed pot.)
OFF
Remote Control ON
DOWN Function
(motorized speed
OFF
pot.)
Remote Control Data ON
Clear
OFF
C001, C002, C003, C004,
C005
A001 = 02
Description
Accelerates (increases output frequency) motor
from current frequency
Output to motor operates normally
Decelerates (decreases output frequency) motor
from current frequency
Output to motor operates normally
Clears the Up/down frequency memory
No effect on Up/down memory
Example (requires input configuration—
see page 3–42):
DWN UP
L 5 4
See I/O specs on page 4–6.
3 2 1 PCS