Inovance MD800 Series Function Guide

Function Applications
-520-
Related Parameters
Para. No. Name
Default
Value Range Description
F9-00
AC drive overload
protection
0
0: Disabled
1: Enabled
This parameter specifies whether to enable
or disable the motor overload protection
function. The AC drive determines whether
the motor is overloaded according to the
inverse time delay curve. When motor
overload is detected, the AC drive will
report an overload fault.
0: Disabled
The motor overload protection function is
disabled. If this parameter is set to 0, install
a thermal relay before the motor for
protection starts.
1: Enabled
The motor overload protection function is
enabled.
F9-01
Motor overload
protection gain
1.00 0.20 to 10.00
The motor overload protection gain is
calculated according to the percentage of
time during which the motor runs
continuously at a certain overload
threshold without reporting an overload
fault.
It is used to adjust the actual overload fault
report time of the AC drive when motor
overload occurs.
F9-02
Motor overload pre-
warning coefficient
80% 50% to 100%
The motor overload pre-warning
coefficient is calculated according to the
percentage of time during which the motor
runs continuously at a certain overload
threshold without reporting overload pre-
warning. A pre-warning signal is sent to the
control system through DO before motor
overload protection starts.
This signal is used to determine how early
to send the pre-warning signal before the
motor overload protection starts. The
larger the value is, the later the pre-
warning signal is sent.
When the accumulative output current of
the AC drive is greater than the overload
time (value Y of the motor overload
protection inverse time delay curve)
multiplied by the motor overload pre-
warning coefficient (F9-02), the multi-
functional DO terminal of the AC drive
outputs a motor overload pre-warning
signal.

Inovance MD800 Series Specifications

General

Brand	Inovance
Model	MD800 Series
Category	DC Drives
Language	English