Omron RX Series - Overload Warning Function

7 Detailed Functions
7 - 74
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
• The overload warning function can be set so that the inverter outputs an overload warning if the load
is too large, before it causes an overload trip.
This helps prevent mechanical damage to transfer machines etc. due to overweighed loading, or
stoppage of transfer lines due to an overload.
• Setting the Multi-function Output P1 to P5 Selection (C021 to C025), or the Multi-function Relay
Output (MA, MB) Function Selection (C026), to 03 (OL: Overload warning) or 26 (OL2: Overload
warning 2) enables the inverter to output two types of overload warning signals.
Overload Warning Function
Parameter
No.
Function name Data
Default
data
Unit
C040
Overload Warning
Signal Output Mode
Selection
00: Enabled during acceleration/deceleration and
constant speed
01: Enabled only during constant speed
01 –
C041
Overload Warning
Level
Heavy
load
(CT)
0.00: Function disabled
0.01 x Rated current to
2.00 x Rated current (0.4 to 55 kW)
0.01 x Rated current to
1.80 x Rated current (75 to 132 kW)
Heavy load
Rated
current [A]
A
Light
load
(VT)
0.00: Function disabled
0.01 x Rated current to
1.50 x Rated current (0.4 to 55 kW)
0.01 x Rated current to
1.50 x Rated current (75 to 132 kW)
Light load
Rated
current [A]
A
C111
Overload Warning
Level 2
Heavy
load
(CT)
0.00: Function disabled
0.01 x Rated current to
2.00 x Rated current (0.4 to 55 kW)
0.01 x Rated current to
1.80 x Rated current (75 to 132 kW)
Heavy load
Rated
current [A]
A
Light
load
(VT)
0.00: Function disabled
0.01 x Rated current to
1.50 x Rated current (0.4 to 55 kW)
0.01 x Rated current to
1.50 x Rated current (75 to 132 kW)
Light load
Rated
current [A]
A
Related functions C001 to C008, C021 to C025, C026
Overload limit level
b022/b025
Overload warning level
C041/C111
Output current
Overload warning
OL/OL2 output