Vacon 20 SERIES User Manual

vacon • 55 Parameter description
3
P10.9 MOTOR THERMAL FAULT
0: No action
1: Warning
2: Fault
This is a software protection, based on time integral of current.
P10.10 M
OTOR AMBIENT TEMPERATURE FACTOR
Change if environment is not standard.
P10.11 M
OTOR THERMAL ZERO SPEED COOLING
Defines the cooling factor at zero speed in relation to the point where the motor is running at
nominal speed without external cooling. See Figure 12.
The default value is set assuming that there is no external fan cooling the motor. If an external
fan is used this parameter can be set to 90% (or even higher).
Setting this parameter does not affect the maximum output current of the drive which is deter-
mined by parameter P1.6 alone.
The corner frequency for the thermal protection is 70% of the motor nominal frequency (P1.2).
Set 100% if the motor has independent fan or cooling. Set 30-40% if the fan is on motor shaft.
Figure 12. Motor thermal current I
T
curve.
f
f
n
Par.
P10.11=40%
0
I
T
100%
Overload area
P
cooling
Corner freq

Vacon 20 SERIES Specifications

General

Output Voltage	0 to Input Voltage
Storage Temperature	-40°C to +70°C
Dimensions	Varies by model
Weight	Varies by model
Power Range	0.25 kW to 18.5 kW
Voltage Range	200 V to 480 V
Control Method	Sensorless vector control
Protection Class	IP20
Ambient Temperature	-10°C to +50°C
Communication Options	Modbus, CANopen
EMC Filter	Integrated
STO (Safe Torque Off)	Yes
Input Voltage	208-240 V, 380-480 V
Protection Features	Overvoltage, Undervoltage, Overcurrent, Overtemperature
Operating Temperature	-10°C to +50°C
Humidity	5% to 95% non-condensing