Vacon 20 SERIES User Manual

vacon • 35 Parameter description
3
The parameter sets the speed variation (as % of nominal speed) when the motor is at 100%
load. Normally droop action is decreased when the motor is running at low speed. Parameter
P9.9 allows to set a speed independent droop.
P1.10 M
OTOR IDENTIFICATION
This procedure measures motor stator resistance and automatically sets U/f characteristic, to
obtain good torque also at low speed.
0: not active
1: standstill identification
Run command must be given and hold high within 20s after programming the value 1. The mo-
tor does not rotate and the drive will automatically exit run state at the end of the measure-
ments.
Procedure sets the following parameters: P9.3, P9.4, P9.5, P9.6, P9.7.
Also speed control (P1.8 =1) is activated.
Note: optimized U/f settings will cause motor current values comparable to nominal one, also
at very low speed. External cooling of the motor is needed if the motor works in this condition
for significant time.

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