Omron SYSDRIVE RV Series User Manual page 271

Multi-Function Outputs (H2-01 to H2-03)
Setting
Value
Motor overload (OL1, including OH3) pre-alarm (ON: 90% or more of the detection
1F
level)
Setting Motor Rated Current
Set the rated current value on the motor nameplate in parameters E2-01 (for motor 1) and E4-01 (for motor 2).
This set value is the electronic thermal base current.
Setting Motor Overload Protection Characteristics
Set the overload protection function in L1-01 according to the applicable motor.
The induction motor's cooling abilities differ according to the speed control range. Consequently, you must
select the electronic thermal protection characteristics to match the applicable motor's tolerance load charac-
teristics.
The following table shows the motor type and tolerance load characteristics.
L1-01
Set Motor Type
Value
General-purpose
1 motor (standard
motor)
Inverter motor
2 (constant torque)
(1:10)
Function
Tolerance Load Characteristics
Rated rotation speed
= 100% speed
Short time 60 s.
Continuous
Frame
number
Max.
Frame number Max. speed
speed
of 160 MJ to 160 LJ min.
of 200
LJ min.
Frame number Max.
speed of 132 MJ
Rotation speed (%)
Rated rotation speed
Short time 60 = 100% speed
Continuous
Frame number Max.
speed of 200 LJ min.
Frame number Max. speed
of 160 MJ to 180 LJ
Frame number Max.
speed of 132 MJ
Rotation speed (%)
Control Methods
V/f
V/f with
PG
Yes Yes
Electronic Thermal Operation
Cooling Ability
(at 100% Motor Load)
Use this motor for
When operating continu-
operations using a
ously at 50/60 Hz or less,
commercial power
motor overload detection
supply. This motor
(OL1) is detected. The
construction yields
Inverter outputs the error
best cooling effect
contact, and the motor
when operating at 50/
coasts to a stop.
60 Hz.
This motor yields a
cooling effect even
Operates continuously at 6
when operating at
to 50/60 Hz.
low speeds (approx.
6 Hz).
Machine Protection
Open
Flux
Loop
Vec-
Vec-
tor
tor
Yes Yes
63
6-