Avr Function - Omron SYSDRIVE MX SERIES User Manual

4-2 Function Mode
PID Comparison Function
•This function outputs a signal when detecting that the PID feedback value exceeds the set range.
•Allocate 07 (FBV) to any of multi-function output terminals P1 and P2 (C021 and C022) or relay
output terminals MA and MB (C026).
•Set the upper limit in C052, and the lower limit in C053. When the PID feedback value falls below
the lower limit, the terminal is turned on. The ON status remains until the value exceeds the upper
limit.
•The output signal is turned off while output is shut off (during stop or FRS, etc.).
•Helps control the number of fans and pumps.

AVR Function

4
•This function outputs voltage to the motor correctly even if the incoming voltage to the Inverter
fluctuates. With this function, output voltage to the motor is based on that set in the motor voltage
selection.
Parameter No.
A081
A082
Related functions
•With A081 (AVR selection), set whether to enable or disable this function.
•Note that the Inverter cannot output voltage beyond that of the incoming voltage.
•To avoid a possible overcurrent trip during deceleration, set the AVR selection to "Always ON"
(A081: 00).
Parameter No.
A081
4-21
Function name
00: Always ON
AVR selection 01: Always OFF
02: OFF during deceleration
AVR voltage 200-V class: 200/215/220/230/240
selection 400-V class: 380/400/415/440/460/480
Data Description
00 Always ON
01 Always OFF
OFF during
02
deceleration
Data
d004, A001, A005
Note
Enabled during acceleration, constant speed, and
deceleration.
Disabled during acceleration, constant speed, and
deceleration.
Disabled only during deceleration in order to reduce the
energy regenerated to the Inverter by increasing the motor
loss. This will avoid a possible trip due to regeneration during
deceleration.
Default setting Unit

02

200/400