YASKAWA Varispeed L7 User Manual

Speed Detection and Speed Limitation
5-23
5
Speed Detection and Speed Limitation
 Speed Agreement Function
There are eight different types of frequency detection methods available. The digital outputs M1 to M6 can be
programmed for this function and can be used to indicate a frequency detection or agreement to any external
equipment.
Related Parameters
Multifunction Output Settings: H2-01 to H2-03 (M1 – M6 function selection)
The table below shows the necessary H2-01 to H2-03 parameter setting for each of the speed agreement func-
tions. Refer to the timing charts on the following page for details.
Setting Precautions
• With L4-01 an absolute speed agreement level is set, i.e. a speed agreement is detected in both directions
(Up and Down).
• With L4-03 a signed speed agreement level is set, i.e. a speed agreement is detected only in the set direc-
tion (positive level → Up direction, negative level → Down direction).
Parameter
No.
Name
Factory
Setting
Change
during
Opera-
tion
Control Methods
V/f
Open
Loop
Vector
Closed
Loop
Vector
L4-01 Speed agreement detection level 0.0 Hz No A A A
L4-02 Speed agreement detection width 2.0 Hz No A A A
L4-03 Speed agreement detection level (±) 0.0 Hz No A A A
L4-04 Speed agreement detection width (±) 2.0 Hz No A A A
Function Setting
f
ref
/f
out
Agree 1
2
f
out
/f
set
Agree 1
3
Frequency detection 1 4
Frequency detection 2 5
f
ref
/f
out
Agree 2
13
f
out
/f
set
Agree 2
14
Frequency detection 3 15
Frequency detection 4 16
http://nicontrols.com

YASKAWA Varispeed L7 Specifications

General

Brand	YASKAWA
Model	Varispeed L7
Category	Inverter
Language	English