Hitachi SJ100 Series Instruction Manual page 124

4–20
Using Intelligent Input Terminals
Remote Control Up and Down Functions
The [UP] [DWN] terminal functions can adjust the output frequency for remote control
while the motor is running. The acceleration time and deceleration time of this function
is same as normal operation ACC1 and DEC1 (2ACC1,2DEC1). The input terminals
operate according to these principles:
• Acceleration - When the [UP] contact is turned On, the output frequency accelerates
from the current value. When it is turned Off, the output frequency maintains its
current value at that moment.
• Deceleration - When the [DWN] contact is turned On, the output frequency deceler-
ates from the current value. When it is turned Off, the output frequency maintains its
current value at that moment.
In the graph below, the [UP] and [DWN] terminals activate while the Run command
remains On. The output frequency responds to the [UP] and [DWN] commands.
Inverter output frequency
RUN command [FW, RV]
Option Terminal
Code Symbol
27 UP
28 DWN
Valid for inputs:
Required settings:
Notes:
•
This feature is available only when the frequency
command source is programmed for operator
control. Confirm A01 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 A04 (maximum frequency setting).
•
The minimum ON time of [UP] and [DWN] is
50 ms.
•
This setting modifies the inverter speed from using
F01 output frequency setting as a starting point.
[UP] terminal
[DWN] terminal
Input
Function Name
State
Remote Control ON
UP Function
OFF
Remote Control ON
DOWN Function
OFF
C01, C02, C03, C04, C05, C06
A01 = 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
Example:
DWN UP
L 6 5 4 3
See I/O specs on page 4–5.
time
RV FW
P24
2 1