Danfoss VACON NX, Инструкция по применению

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•
•
•
•
A B
f
out
REV
t
DIN4
Start
DIN5
Stop
e
3
0
b
h
0
5
8
.1
0
Illustration 57: Start Pulse/ Stop Pulse
A
Stop function ( ID 506 ) = coasting.
B If Start and Stop pulses are simultaneous the Stop pulse overrides the Start pulse.
10.122 (ID 364) Reference Scaling, Minimum Value
Location in the menu:
P2.2.18
(Local/Remote Control Application)
Use this parameter to set extra reference scaling.
See parameters
ID 303 and ID 304 .
10.123 (ID 365) Reference Scaling, Maximum Value
Location in the menu: P2.2.19 (Local/Remote Control Application)
Use this parameter to set extra reference scaling.
See parameters
ID 303 and ID 304 .
10.124 (ID 366) Easy Changeover
Location in the menu: P2.2.37 (PID Control Application)
Use this parameter to select copy reference function.
If Copy reference has been selected, it is possible to switch from direct control to PID control and back without scaling the reference
and actual value.
For example: The process is driven with direct frequency reference (Control place I/O B, fieldbus, or keypad) to some point. Then the
control place is switched to one where the PID controller is selected. The PID control starts to maintain that point.
It is also possible to change the control source back to direct frequency control. In this case, the output frequency is copied as the
frequency reference. If the destination place is Keypad, the run status (Run/Stop, Direction, and Reference) is copied.
The changeover is smooth when the reference of the destination source comes from the Keypad or an internal motor potentiome-
ter (parameter
ID 332 [PID Ref.] = 2 or 4, ID 343 [I/O B Ref] = 2 or 4, parameter ID 121 [Keypad Ref] = 2 or 4 and ID 122 [Fieldbus Ref]= 2
or 4).
10.125 (ID 367) Motor Potentiometer Reset
Location in the menu:
P2.2.23
(Local/Remote Control Application)
P2.2.28 (PID Control Application)
P2.2.1.3 (Multi-purpose Control Application)
P2.2.1.16 (Pump and Fan Control Application)
Use this parameter to set the logic for the resetting of the frequency reference of the motor potentiometer.
AB296635287482en-000301 / DPD00903 | 209 Danfoss A/S © 2023.02
Parameter Descriptions
VACON® NX All-in-One
Application Guide