I.4.4
Digital servo amplifier concept
Operation and parameter setting
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With our user-friendly software for setup through the serial interface of a PC
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Direct operation by means of two keys on the servo amplifier and a 3-character LED display
for status display in case there is no PC available
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Fully programmable via RS232 interface
Power section
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Power supply:
B6 rectifier bridge, directly off 3-phase earthed (grounded)
supply system, integral power input filter and inrush circuit
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All shielding connections directly on the amplifier
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Output stage:
IGBT- module with isolated current measurement
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Regen circuit:
with dynamic distribution of the regen power between several
amplifiers on the same DC-link circuit. Internal regen resistor as
standard, external regen resistors if required
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DC-link voltage 260 — 900 VDC, can be switched in parallel
Completely digital control
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Digital current controller (space vector pulse-width modulation, 62.5 µs)
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Freely programmable digital speed controller (65µs or 250 µs)
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Integral position controller with adaptation possibilities for customer needs (250 µs)
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Pulse direction interface integrated for connection of a servomotor to a stepping motor
control
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Evaluation of the resolver signals and sine-cosine signals of a high-resolution encoder
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Encoder simulation (incremental or SSI)
Auxiliary functions
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Adjustable setpoint ramps
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2 analog monitor outputs
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4 programmable digital inputs (normally, two are defined as limit-switch inputs)
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2 programmable digital outputs
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Freely programmable combinations of all digital signals
Integrated safety
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Safe electrical separation to EN 50178 between the power input / motor connections and the
signal electronics, provided by appropriate insulation/creepage distances and complete elec-
trical isolation
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Soft-start, overvoltage recognition, short-circuit protection, phase-failure monitoring
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Temperature monitoring of servo amplifier and motor
(when using our motors with our pre-assembled cables)
SERVO
STAR
®
601...620 Installation Manual
13
Seidel
06/02
General
