Omron SYSDRIVE 3G3MV User Manual page 170

Advanced Operation
Voltage
3G3MV-
Single-phase Single-phase
AB001
200 V 200 V
AB002
AB004
AB007
AB015
AB022
AB040
3-phase 3-phase A4002
400 V 400 V
A4004
A4007
A4015
A4022
A4030
A4040
A4055
A4075
n175 Low Carrier Frequency at
Low Speed
Setting 0, 1
range
For 5.5- and 7.5-kW Inverters, the default setting is "1" (enable).
Note
Set Values
Value
0 Low carrier frequency at low speed disabled.
1 Low carrier frequency at low speed enabled.
·Normally set n175 to 0 (except for 5.5 and 7.5kW Inverters).
·When the output frequency is 5 Hz or less and the output current rate is 110% or more,
the carrier frequency will be automatically reduced to 2.5 kHz with n175 set to 1. If the
load is heavy at low speed, the Inverter will withstand higher overcurrent by suppres-
sing the heat radiation of the Inverter caused by the carrier frequency.
·This function is enabled with 2, 3, or 4 set in n080 for carrier frequency.
6-28
Model Default
setting
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
4 (10 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
3 (7.5 kHz)
Rated
output
current (A)
0.8
1.6
3.0
5.0
8.0
11.0
17.5
1.2
1.8
3.4
4.8
5.5
7.2
9.2
14.8
18
Register 01AF
Hex
Unit of 1
setting
Description
Chapter 6
Set to 3 Set to 4
Reduced Reduced
rated output rated output
current (A) current (A)
¬ ¬
¬ ¬
¬ ¬
¬ ¬
7.0
¬
10.0
¬
16.5
¬
1.0
¬
1.6
¬
3.0
¬
4.0
¬
4.8
¬
6.3
¬
8.1
¬
¬ ¬
17
¬
Changes during
operation
Default setting
No
0