Lenze 520 Series - English

4Q - DC Chopper 520 series
35
CONTENTS
SAFETY INFORMATION 37
1. FEATURES 38
2. TECHNICAL DATA 39
2.1.1 Dimensions 40
2.2 Internal fuses 40
2.3 External fuses 40
2.3 Mains and armature chokes 41
2.3.1 Mains chokes 41
2.4.2 Armature choke 41
O 3. INSTALLATION AND OPERATION 42
3.1 Installation 42
3.2 Radio interference suppression 43
4. CHOPPER CONNECTIONS 44
4.1 Mains and motor connections 44
4.2 Control connections 45
4.2.1 Speed reference (input 1) 45
4.2.2 Speed reference (input 2) 45
4.2.3 Current reference (Torque control) 46
4.2.4 Operation with external current limitation (Torque limit) 47
4.2.5 Actual value feedback 47
4.2.6 Controller enable (RFR) 48
4.2.7 Quick stop QSP 48
5. INTEGRATED BRAKE CHOPPER 49
5.1 Technical data (r.m.s. values) 49
5.2 Operating modes 50
5.3 Operating diagram of brake choppers for stationary operation 51
5.4 Selection of the external brake resistors 52
5.4.1 Stationary generator mode 52
5.4.2 Reversing and braking mode 52
5.4.3 Qvercurrent release 54
6. DC BUS CONNECTION 55
6.1 External fuses 55
6.2 Mains chokes for DC bus connection 55
6.3 Installation 56
6.4 Operation with brake chopper 56
6.5 Connection for DC bus connection 57
Lenze