Remote Control Up And Down Functions - Hitachi SJ300 Series Instruction Manual

Remote Control
The [UP] [DWN] terminal functions can adjust the output frequency for remote control while
the motor is running. The acceleration time and deceleration time used with this function is the
Up and Down
same as for normal operation ACC1 and DEC1 (2ACC1,2DEC1). The input terminals operate
Functions
as follows:
• Acceleration - When the [UP] contact is turned ON, the output frequency accelerates from
• Deceleration - When the [DWN] contact is turned ON, the output frequency decelerates
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.
It is possible for the inverter to retain the frequency set from the [UP] and [DWN] terminals
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.
Valid for inputs:
Required
settings:
Notes:
• This feature is available only when the
• This function is not available when [JG] is in
• The range of output frequency is 0 Hz to the
• The Remote Control Up/Down function
the current value. When it is turned OFF, the output frequency maintains its current value.
from the current value. When it is turned OFF, the output frequency maintains its current
value.
Output
frequency
[UP]
[DWN]
[FW, RV]
Opt.
Symbol Function Name
Code
27 UP Remote Control
UP Function
28 DWN Remote Control
DOWN Function
29 UDC Remote Control
Data Clear
C001, C002, C003, C004,
C005, C006, C007, C008
A001 = 02
C101 = 01 (enables memory)
frequency command source is programmed
for operator control. Confirm A001 is set to
02.
use.
value in A004 (maximum frequency setting).
varies the inverter speed by directly writing to
the F001 output frequency setting.
SJ300 Inverter
Input
Description
State
ON Accelerates (increases output frequency)
motor from current frequency
OFF Output to motor operates normally
ON
Decelerates (decreases output frequency)
motor from current frequency
OFF Output to motor operates normally
ON Clears the Up/down frequency memory
OFF No effect on Up/down memory
Example: (Requires input configuration—
see page 3–47. Jumper position shown is
for –xFU/-xFR models; for –xFE models,
see page 4–12.)
UDC DWN
TH FW CM1
8
P24 PLC CM1
7
See I/O specs on page 4–9.
4–33
t
UP
5 3 1
6 4 2