User manual
3U Servo Amplifier
Table of Contents
Copyright Information................................................................................................................................................i
Operating Conditions .................................................................................................................................................i
Safety Instructions.................................................................................................................................................... ii
INTRODUCTION .......................................................................................................................................................1
Compatible Motors....................................................................................................................................................2
Maximum Speed....................................................................................................................................................2
Torque...................................................................................................................................................................2
Motor Poles ..........................................................................................................................................................3
Motor Inductance..................................................................................................................................................3
Motor Resistance ..................................................................................................................................................3
Motor Back EMF ..................................................................................................................................................3
Motor Torque Constant ........................................................................................................................................4
Motor Inertia ........................................................................................................................................................4
Motor Cabling ......................................................................................................................................................4
RECEIVING AND UNPACKING.............................................................................................................................5
Use of Equipment......................................................................................................................................................5
Environmental Specifications....................................................................................................................................5
Electrical Specifications............................................................................................................................................6
Recommended Fusing and Wire Gauge ....................................................................................................................6
Wire Sizes .............................................................................................................................................................6
Physical Specifications..............................................................................................................................................7
MOUNTING ................................................................................................................................................................8
SYSTEM WIRING......................................................................................................................................................9
Fuse and Circuit Breaker Selection......................................................................................................................9
Use of GFI Breakers.............................................................................................................................................9
Transformer and Filter Sizing ..............................................................................................................................9
Noise Problems...................................................................................................................................................10
Operating Temperature ......................................................................................................................................10
Amplifier Cooling Considerations ......................................................................................................................11
Single Phase Operation ......................................................................................................................................11
Power Supply Considerations .................................................................................................................................11
Wiring AC Input......................................................................................................................................................11
Wiring Earth-Ground ..............................................................................................................................................12
Earth Grounding Paths.......................................................................................................................................12
Wiring 24 V Logic Control .....................................................................................................................................13
Regen (Shunt) Resistor Wiring ...............................................................................................................................13
Shunt Regulation.................................................................................................................................................14
Minimum Resistance Value.................................................................................................................................14
Maximum Resistance Value ................................................................................................................................14
Energy Transfer Equations.................................................................................................................................14
Bonding...................................................................................................................................................................18
Filtering...................................................................................................................................................................18
CE Filtering........................................................................................................................................................18
Input Power Filtering .........................................................................................................................................18
Motor Line Filtering...........................................................................................................................................18
3U DRIVE CONNECTIONS....................................................................................................................................21
PWM Input Connector ............................................................................................................................................21
Axis #1 PWM input connector ............................................................................................................................21
P1 (36-pin Mini-D Connector) ...........................................................................................................................21
Axis #2 PWM Input connector ............................................................................................................................22
P2 (36-pin Mini-D Connector) ...........................................................................................................................22
Motor Output Connector .........................................................................................................................................23
Table of Contents ii