ABB ACH 501 User Manual

Chapter 6 – Parameters
6-22 ACH 500 Programming Manual
6 DECEL TIME 2 Refer to Parameter 20.3.4.
7 ACCEL REF2 TIME Corresponds to the time required for the reference to change from 0 to 100
percent and vice versa, if the PI-Controller is not used.
8 DECEL REF2 TIME Refer to Parameter 20.3.7.
Group 20.4
Motor Control
These parameter values can only be altered with the ACH 500 stopped, except
those marked with (I). The Range/Unit column in Table 6-13 shows parameter
values. The text following the table explains parameter values in detail.
Table 6-13 Group 20.4
Parameter Range/Unit Description
1 SWITCHING FREQ 1.0 – 12.0 kHz
(ACH 501)
3.0 kHz (ACH 502)
Carrier frequency selection.
2 MAX OUT VOLTAGE 0.15 – 1.05 times
drive output
voltage
Maximum motor voltage selection.
3 V/Hz RATIO LINEAR/
SQUARED/
AUTOMATIC
Voltage to frequency relationship in
region below Field Weakening Point.
4 FIELD WEAK POINT 30 – 500 Hz Threshold for nominal voltage.
5 IR COMPENSATION NO/MANUAL/
AUTOMATIC
Low speed torque boost function.
6 IR COMP VOLTAGE 0.01 – 0.15 times
drive output
voltage
Voltage level in manual IR
Compensation.
7 IR COMP RANGE 0 Hz – FWP Zero point in manual IR
Compensation.
8 SLIP
COMPENSATION (I)
OFF/ON Automatic slip reduction.
9 NOMINAL SLIP (I) 0.1 – 10% Nominal slip of the motor.
10 VOLTAGE LIMIT (I) OFF/ON Over-/Undervoltage Controller.

ABB ACH 501 Specifications

General

Brand	ABB
Model	ACH 501
Category	Controller
Language	English