Specifications

2.8 Control Structures
2.8.1 Control Principle
130BC514.11
3 Phase
power
input
DC bus
Motor
Brake
resistor
88 (-)
89 (+)
95
PE
93 (L3)
92 (L2)
91 (L1)
(R-) 81
(R+) 82
(PE) 99
(U) 96
(V) 97
(W) 98
Illustration 2.17 Control Structure, 6-pulse
130BD462.10
3 Phase
power
input
Motor
Brake
resistor
95
PE
93-1 (L3-1)
92-1 (L2-1)
91-1 (L1-1)
(R-) 81
(R+) 82
(PE) 99
(U) 96
(V) 97
(W) 98
3 Phase
power
input
95
PE
93-2 (L3-2)
92-2 (L2-2)
91-2 (L1-2)
Y
Illustration 2.18 Control Structure, 12-pulse
The frequency converter is a high-performance unit for
demanding applications. It can handle various motor
control principles including:
•
U/f special motor mode
•
VVC
plus
•
Squirrel cage asynchronous motors
Short circuit behaviour on this frequency converter
depends on the 3 current transducers in the motor phases.
In H-40 Configuration Mode, it can be selected if using
open or closed loop.
Introduction VLT® HVAC Drive FC 102 Design Guide
30 MG16C102 - Rev. 2013-08-20
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