Hitachi SJ2002 Series Instruction Manual page 161

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 decelera-
tion time 1). Use A092 (acceleration time 2)
and A0093 (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 (F002) to acceleration 2 (A092).
Option Terminal
Code Symbol
09 2CH Two-stage Accelera-
tion and Deceleration
C001, C002, C003, C004,
Valid for inputs:
C005, C006
A092, A093, A094=00
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.
Input
Function Name
State
ON
OFF
SJ200
Output
frequency
second
initial
1
[2CH]
0
[FW], 1
[RV] 0
Description
Frequency output uses 2nd-stage acceleration
and deceleration values
Frequency output uses the initial acceleration 1
and deceleration 1 values
Example (default input configurations
shown—see page 3–45):
2CH
L 6 5 4
–FE
models
See I/O specs on page 4–6.
4–19
Inverter
2
target
frequency
t
3 2 1 PCS
–FU and FR
models