Two-Stage Acceleration And Deceleration - Hitachi L300P Series Instruction Manual

4–18
Using Intelligent Input Terminals
Two-stage
Acceleration and
Deceleration
When terminal [2CH] is turned ON, the
inverter changes the rate of acceleration and
deceleration from the initial settings (F002
and F003) to use the second set of accelera-
tion/deceleration values. When the terminal
is turned OFF, the inverter is returned to the
original acceleration and deceleration time
(F002 acceleration time 1, and F003 decel-
eration time 1). Use A092 (acceleration
time 2) and A093 (deceleration time 2) to
set the second stage acceleration and decel-
eration times.
In the graph shown above, the [2CH] signal becomes active during acceleration. This causes the
inverter to switch from using acceleration 1 (F002) to acceleration 2 (A092).
Opt.
Symbol Function Name
Code
09 2CH Two-stage Accelera-
tion and Decelera-
tion
C001, C002, C003, C004,
Valid for inputs:
C005
A092, A093, A094=0
Required
settings:
Notes:
• Function A094 selects the method for second
stage acceleration. It must be set = 00 to
select the input terminal method in order for
the 2CH terminal assignment to operate.
Output
frequency
second
initial
Input
signals
[2CH]
[FW, RV]
Input
Description
State
ON Frequency output uses 2nd-stage accelera-
tion and deceleration values
OFF Frequency output uses the initial accelera-
tion 1 and deceleration 1 values
Example: (Requires input configuration—
see page 3–43. Jumper position 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.
target frequency
t
2CH
4 3 2 1