5-18
·
These parameter settings are effective for smooth operation of the Inverter if the ana-
log input signal changes too rapidly or the signal is interfered with by noise.
·
The larger the set value is, the slower the response will be.
n070
Multi-function Analog Voltage
Input Filter Time Constant
Register
0146
Hex
Changes during
operation
Yes
Setting
range
0.00 to 2.00 (s)
Unit of
setting
0.01 s
Default setting
0.10
n073
Multi-function Analog Current
Input Filter Time Constant
Register
0149
Hex
Changes during
operation
Yes
Setting
range
0.00 to 2.00 (s)
Unit of
setting
0.01 s
Default setting
0.10
H
Frequency Reference Loss Detection (n064)
This function is provided for 5.5- and 7.5-kW Inverters only. If the frequency reference
from the control circuit drops by more than 90% within 400 ms, this function detects it
and determines that the reference has been lost (e.g., from some cause such as discon-
nected wiring).
·
When operating in remote mode, the setting for the frequency reference loss detection
function is enabled when either an analog reference or a pulse train reference is se-
lected for n004 (frequency reference selection).
Note 1.
If “frequence reference agree” (set value: 2) is preset for multi-function outputs 1 to 3
(n057 to n059), the frequency reference loss status can be checked. When using this
output, implement external error processing.
Note 2.
When the frequency reference loss detection is enabled and a loss is detected, op-
eration will continue at 80% of the frequency reference prior to the loss.
Note 3.
If the frequency reference is restored during a frequency reference loss, and the fre-
quency returned to at least the level of the continuing operation, the frequency refer-
ence loss detection will be cleared and the Inverter will return to normal operation
.
Note 4.
Frequency reference loss detection does not operate for multi-function analog inputs.
n064
Frequency Reference Loss
Detection
Register Changes during
operation
0140
Hex
No
Setting
range
0, 1
Unit of
setting
1
Default
setting
0
Value
Description
0
Loss detection disabled. (Operation according to frequency reference;
frequency reference loss detection disabled.)
1
Loss detection enabled. (After loss detection, operation continues at 80% of
the frequency reference prior to the loss; frequency reference loss detection
enabled.)
Basic Operation
Chapter 5
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...