WEG CFW08 Vector inverter Plus User Manual

77
DETAILED PARAMETER DESCRIPTION
Range
[Factory Setting]
Parameter Unit Description / Notes
Figure 6.7 - Block diagram of the automatic torque boost function
Compensation
Zone
Maximum
(P142)
Output Voltage
Output
Frequency
Field Weakening
(P145)
4H z
0
Figure 6.8 - V/F curve with automatic torque boost
(automatic IxR compensation )
Speed
Reference (F*)
Output Active
Current (I
a
)
Filer
Automatic
Torque Boost
P137
Manual
Torque Boost
P136
P007
Motor
Voltage
P138 0.0...10.0%
Slip Compensation [0.0]
0.1%
This parame-
ter is only available
in V/F control
(P202=0 or 1)
The parameter P138 is used in the motor slip compensation function.
This function compensates the drop of the motor speed due to
load, which is a inherent characteristic relating to the operation
principle of the induction motor.
This speed drop is compensated by increasing the output frequency
(and voltage) (applied to the motor) as a function of the increase of
the active motor current, as shown in the block diagram and in the
V/F curve below.
Slip
Compensation
Output Active
Current (I
a
)
Frequency
Reference (F*)
Ramp Input
Frequency (Fe)
F
Filter
P138
Figure 6.9 - Block diagram of the slip compensation function

WEG CFW08 Vector inverter Plus Specifications

General

Frequency	50/60 Hz
Output Frequency	0-400 Hz
Overload Capacity	150% for 60 seconds
Protection Degree	IP20
Protection Features	Overcurrent, Overvoltage, Undervoltage, Short Circuit
Braking	Dynamic braking (with optional braking resistor)
Communication Interface	RS-485 (Modbus RTU)
Ambient Temperature	-10°C to +50°C
Humidity	5 to 95% non-condensing
Cooling Method	Fan Cooled
Dimensions	Varies depending on model (refer to specific model datasheet)
Power Range	0.75-15 kW
Input Voltage	200-240V AC
Storage Temperature	-25°C to 65°C (-13°F to 149°F)