6-51
Set Values
·
For the input open-phase detection level (n166), set the main-circuit DC voltage fluc-
tuation level for detecting an input open phase. Set the level as a percentage, as fol-
lows:
200-V-class Inverters:
Take 400 V as 100%.
400-V-class Inverters:
Take 800 V as 100%.
·
For the input open-phase detection time (n167), set the time (in seconds) for detecting
an input open phase.
Note 1.
The following values are recommended for detecting an input open phase:
n166 = 7 (%); n167 = 10 (s)
Note 2.
If either n166 or n167 is set to 0, the input open-phase detection function will be
disabled.
6-10-11
Output Open-phase Detection (n168, n169)
·
The output open-phase detection function is provided for 5.5-kW and 7.5-kW Inverters
only.
·
This function detects the occurrence of an output terminal open phase. The detection
is performed at the current flowing at each output phase.
·
If the current in any of the Inverter output phases becomes less than the output open-
phase detection level (n168) and persists at this level for longer than the output open-
phase detection time (n169), an output open-phase fault (LF) will be detected
.
n168
Output Open-phase
Detection Level
Register
01A8
Hex
Changes during
operation
No
Setting
range
0 to 100
Unit of
setting
1 %
Default setting
0
n169
Output Open-phase
Detection Time
Register
01A9
Hex
Changes during
operation
No
Setting
range
0.0 to 2.0
Unit of
setting
0.1 s
Default setting
0.0
Set Values
·
For the output open-phase detection level (n168), set the current for detecting an out-
put open phase. Make the setting as a percentage, taking the Inverter’s rated output
current as 100%.
·
For the output open-phase detection time (n169), set the time in seconds for detecting
an output open phase.
Note 1.
The following values are recommended for detecting an output open phase:
n168 = 5 (%); n169 = 0.2 (s)
Advanced Operation
Chapter 6
Summary of Contents for SYSDRIVE 3G3MV A2002
Page 1: ...USER S MANUAL SYSDRIVE 3G3MV Multi function Compact Inverter Cat No I527 E2 02...
Page 15: ...Chapter 1 Overview 1 1 Function 1 2 Nomenclature 1 3 New Features 1...
Page 24: ...Chapter 2 Design 2 1 Installation 2 2 Wiring 2...
Page 89: ...Chapter 4 Test Run 4 1 Procedure for Test Run 4 2 Operation Example 4...
Page 286: ...Chapter 9 Specifications 9 1 Inverter Specifications 9 2 Option Specifications 9...
Page 311: ...Chapter 10 List of Parameters 10...
Page 342: ...Chapter 11 Using the Inverter for a Motor 11...
Page 348: ...Appendix A Standard Models...