Hitachi SJ Series, User Manual

Page: 469 / 786

13-6
Chapter 13 Monitor Functions
13.3 Checking the Acceleration Time
or Deceleration Time
13.3.1 Monitoring the acceleration time or
deceleration time
• Want to check the acceleration or deceleration time
of the inverter.
• The time of acceleration or deceleration currently
underway can be shown, when, with 2-step
acceleration/deceleration function or multi-speed
function, the acceleration or deceleration time is
switched or when you are using the inverter while
changing the acceleration/deceleration time setting.
• The time that it takes to rise from 0 Hz to the
maximum frequency will be displayed as the
acceleration time.
• The time that it takes to fall from the maximum
frequency to 0 Hz will be displayed as the
deceleration time.

Parameter
• The acceleration time and deceleration time
monitors are affected by the following functions:
- Acceleration/deceleration function
- 2-step acceleration/deceleration function
- Multi-speed function
- PID soft-start function
- Acceleration/deceleration cancellation [LAC]
function
- Second setting [SET] function
• The acceleration time and deceleration time
monitors are enabled only under the frequency
control. A correct value may not be displayed when
the acceleration or deceleration time fluctuates
depending on the torque under the torque control.
• When the frequency is accelerated or decelerated
after the acceleration or deceleration pattern is
changed, the time to change between 0 Hz and
maximum value will be displayed.
Item Parameter Data Description
Acceleration time
monitor
[FA-10] 0.00~3600.00 (s)
Monitors the enabled acceleration time.
Deceleration time
monitor
[FA-12] 0.00~3600.00 (s)
Monitors the enabled deceleration time.
Q
A
!