Hitachi SJ100 Series Instruction Manual page 116

4–12
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 (F02 and
F03) to use the second set of acceleration/
deceleration values. When the terminal is
turned off, the equipment is returned to the
original acceleration and deceleration time
(F02 acceleration time 1, and F03 decelera-
tion time 1). Use A92 (acceleration time 2)
and A93 (deceleration time 2) to set the
second stage acceleration and deceleration
times.
In the graph shown above, the [2CH] becomes active during the initial acceleration. This
causes the inverter to switch from using acceleration 1 (F02) to acceleration 2 (A92).
Option Terminal
Code Symbol
09 2CH
Valid for inputs:
Required settings:
Notes:
•
Function A94 selects the method for second stage
acceleration. It must be 00 to select the input
terminal method in order for the 2CH terminal
assignment to operate.
Input
Function Name
State
Two-stage Accelera- ON
tion and Deceleration
OFF
C01, C02, C03, C04, C05, C06
A92, A93, A94=0
Output
frequency
second
initial
Switches
[2CH]
FW, RV
(Run)
Description
Frequency output uses 2nd-stage acceleration
and deceleration values
Frequency output uses the initial acceleration 1
and deceleration 1 values
Example:
2CH
L 6 5 4 3
See I/O specs on page 4–5.
target frequency
time
FW
P24
2 1