Chapter 6 - Parameter Description [APP]
6-61
6.5 Applicationgroup[APP]
APP-00: Jump to Desired Parameter
Jumping directly to any parameter can be
accomplished by programming the desired parameter
number.
APP-01: Application Mode Selection
This parameter sets the desired application mode.
LCD
Setting Range
Description
None Application mode is not selected.
MMC
MMC (Multi-Motor Control) mode is
selected in application group. Related
parameters (APP-40~72) are
displayed. Relay parameters I/O-
76~79 are automatically set to
“MMC” for controlling multiple
motors via across the line starting. If
less than 4 auxiliary motors are
connected, the remaining relays can
be used for other functions.
Caution: When APP-01 is set to “MMC”, then set
back to “None”, parameters I/O-76 ~ 79 need to be
programmed to their desired function. They do
not automatically return to their previous setting.
APP-02: PID Operation Selection
This function can be used for process control. It can
control flow, pressure, temperature or other process
variables. To use this function, set APP-02 [proc PI
mode] to “Yes”. PID control detects the amount of
feedback from a sensor and compares it with the
target value. If the values differ, this function
produces an output to eliminate the deviation. In
other words, this control matches the target value
with the feedback amount.
For HVAC or Pump applications, the PID control can
be used to adjust the actual output by comparing a
feedback signal with a ‘Set-point’ given to the drive.
This ‘Set-point’ can be in the form of Speed,
Temperature, Pressure, Flow, Level, etc. The ‘Set-
point’ can be entered via the keypad or via the analog
input terminals. See APP-04 and APP-05. The
feedback signal is provided externally to the drive via
the analog input terminals. The drive compares the
signals to calculate ‘total-error’ which is reflected in
the drive's output.
Note: PID control can be bypassed to manual
operation temporarily by defining one of the
multifunction input terminals (M1~M8) to “Open-
loop”. The drive will change to manual operation
from PID control when this terminal is ON, and
change back to PID control when this terminal is
OFF.
[P Control] The P gain is the proportional part of the
feedback loop. The higher the P value, the faster the
drive will respond to process error. When P control is
used alone, the system could become unstable. The I
Control parameter should also be used.
[I Control] The I Control is the integral part of the
feedback loop. This is used to compensate the steady
state error by accumulating them. Using this control
alone makes the system unstable. The P control
should also be used.
APP
► Proc PI mode
02 No
Factory Default: No
APP►
Jump code
00 1
Factory Default: 1
APP►
App. mode
01 None
Factory Default: None
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