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Using Intelligent Input Terminals
Operations
and Monitoring
4–10
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).
time
[2CH]
Switches
Output
frequency
FW, RV
(Run)
target frequency
second
initial
Option
Code
Terminal
Symbol
Function Name
Input
State
Description
09 2CH Two-stage Accelera-
tion and Deceleration
ON Frequency output uses 2nd-stage acceleration
and deceleration values
OFF Frequency output uses the initial acceleration 1
and deceleration 1 values
Valid for inputs:
C01, C02, C03, C04, C05
Required settings:
A92, A93, A94=0
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.
Example:
FW
2CH
See I/O specs on page 4–5.
P24
123L 45
Technologies Inc.
Toll Free: voice: 1-877-539-2542 fax: 1-800-539-2542 www.mgitech.com