28
Overview of 17D Internal Electronics, continued
Internal Power
Section
The Internal power section of the 17D drive includes the following:
l
Power input: A rectifier bridge directly connected to the three-phase earthed
supply system, integral power input filter and inrush current limiting circuit.
l
Motor power output: PWM current-controlled voltage source IGBT-inverter with
isolated current measurement
l
Regen circuit: Dynamic distribution of Regen power between several drives on
the same DC Link circuit. An internal Regen resistor is standard; external
Regen resistors are available as required by your application.
l
DC Link voltage: 300...700 V dc, nominal (900 Vdc, intermittent) and can be
operated in parallel.
DC Link
Capacitor
Reconditioning
If the servo drive has been stored for longer than one year, then the DC Link
capacitors will have to be reconditioned as follows:
Integrated Safe
Electrical
Separation
The 17D drive ensures safe electrical separation (in accordance with EN 50178)
between the power input/motor connections and the signal electronics through the
use of appropriate insulation-creepage distances and electrical isolation. The drive
also provides soft-start characteristics, overvoltage and overtemperature detection,
short-circuit protection and input phase-failure monitoring. When using BPH and
SER series servo motors in conjunction with Schneider’s pre-assembled cables,
the drive also monitors the servo motor for overtemperature.
Continued on next page
Step
Action
1
Ensure that all electrical connections to the drive are disconnected.
2
Provide 230 Vac, single-phase power to connector XO
A
(terminals
L1 / L2) on the servo drive for about 30 minutes to recondition the
capacitors.
Summary of Contents for MHDA1004
Page 1: ...Version 2 0 June 2003 31001643_K01_000_04 Lexium Servo Drive 17D Series User Guide...
Page 2: ......
Page 4: ...Preface iv 890 USE 120 00...
Page 14: ...Contents xiv 890 USE 120 00...
Page 28: ...14...
Page 46: ...32...
Page 56: ...42...
Page 112: ...Chapter 5 System Operation 98 890 USE 120 00...
Page 130: ...116 Continued on next page...
Page 148: ...134...
Page 172: ...158...
Page 198: ...184...
Page 204: ...Index 190 890 USE 120 00...