Control Structures; Control Structure Open Loop - Danfoss VLT DriveMotor FCP 106 Design Manual

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2.3 Control Structures

In parameter 1-00 Configuration Mode, select whether open loop or closed-loop control applies.
2 2

2.3.1 Control Structure Open Loop

In the configuration shown in Illustration 2.13, parameter 1-00 Configuration Mode is set to [0] Open loop. The resulting
reference from the reference handling system or the local reference is received and fed through the ramp limitation and
speed limitation. After that, it is sent to the motor control. The output from the motor control is then limited by the
maximum frequency limit.
Reference
handling
Remote
reference
Auto mode
Hand mode
Local
reference
scaled to
Hz
LCP Hand on,
o and auto
on keys
Illustration 2.13 Open-loop Structure
16
®
VLT DriveMotor FCP 106
P 4-14
Motor speed
high limit [Hz]
Remote
Reference
Local
P 4-12
Motor speed
low limit [Hz]
Danfoss A/S © 12/2018 All rights reserved.
100%
0%
P 3-4* Ramp 1
P 3-5* Ramp 2
Ramp
100%
-100%
To motor
control
P 4-10 P 4-19
Motor speed Max output
direction frequency
MG03M302