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Noisy
signal
H3-13 Master Frequency Reference Terminal Selection
Setting
0
Main Fref= A1(factory default)
1
Main Fref= A2
Parameter H3-13 allows the programmer to select which analog input will serve as the Speed Command input when
"Terminals" are selected as the Auto Mode Speed source (b1-01= "1: Terminals"), or Terminal is selected as the reference
source for the Hand mode (b1-12= "1: Terminals"). For the A2 analog input to be an effective selection for the
H3-13 parameter, parameter H3-09 must be configured as Aux Reference (H3-09= "2: Aux Reference").
If H3-09 ≠ 2, then the A1 analog input will be used regardless of the setting of parameter b1-12.
L2 Momentary Power Loss Ride-thru Function
When momentary power loss recovery is enabled (L2-01 ≠0), a speed search is executed to catch the potentially spinning
motor shaft. This speed search will occur regardless of the setting of b3-01 "Speed Search Selection".
L2-01 Momentary Power Loss Detection Selection
Setting
0
Disabled
1
PwrL Ride Thru t
2
CPU Power Active (factory default)
L2-02 Momentary Power Loss Ride-Thru Time
Setting Range:
0.0 to 25.5 Seconds
Factory Default: Model Dependent
The Drive allows different responses to momentary power losses. The setting of L2-01 determines whether the Drive attempts
to restart after a short loss of incoming AC power and for what length of time this capability remains active.
If L2-01= "0: Disabled", the Drive detects a UV1 fault 15ms after power loss and automatic restarting is disabled. The Drive
cannot restart until the external run command is removed and the UV1 fault is reset.
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input
Fig 5.31 Analog Input Filter Time Constant Effect on "Noisy" Signal
Description
Description
Programming 5 - 40
Analog
Input
Filter
Internal Analog Input Valve
(Filtered)
Analog
input post
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