6 Technical description
6.1 The digital servo amplifiers of the series SERVOSTAR 640/670
Standard version
l
2 current ratings (40 A, 70 A)
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Wide range of rated voltage (3x208V
–10%
to 3x480V
+10%
)
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Overvoltage category III acc. to EN 61800-5-1
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Shield connection directly at the servo amplifier
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Integrated CANopen (default 500 kBaud), for integration into CANbus systems and for
setting parameters for several amplifiers via the PC-interface of one amplifier
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Integrated RS232, electrically isolated, integrated pulse-direction interface
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-AS- built-in safety relay (personnel-safety starting lock-out), (ð p.70)
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Slot for an expansion card
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Synchronous servomotors, linear motors and asynchronous motors can be used
Power supply
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With external mains filter and mains choke directly off grounded 3~ system,
230V
-10%
... 480V
+10%
,50Hz,
208V
-10%
... 480V
+10%
,60Hz,
TN-system, TT-system with earthed (grounded) neutral point, not more than 42,000 rms
symmetrical amperes, 480VAC maximum; when protected by fuses type Fusetron FRS-R-80
(Class RK5), manufactured by Bussman, or equivalent 480VAC min
Connection to other mains supply networks only with insulating transformer ð p. 46
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BB6 rectifier bridge, off 3-phase earthed (grounded) supply, integral inrush circuit
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Fusing (e.g. fusible cutout) provided by the user
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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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Brake circuit: with dynamic distribution of the brake power between several
amplifiers on the same DC bus link circuit, external brake resistor
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DC bus link voltage 260 ... 900 VDC, can be switched in parallel
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Interference suppression filter for the 24V aux. supply (to category C2) is integrated
External interference suppression filter for the supply input (to category C2)
required. External mains choke required.
Integrated safety
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Safe electrical separation between the power input / motor connections and the signal elec
-
tronics, provided by appropriate insulation/creepage distances and complete electrical isola
-
tion
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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)
Auxiliary supply voltage 24VDC
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Electrically isolated, internal fusing, from an external 24VDC psu, e.g. with isolating transfor
-
mer
SERVOSTAR
®
640/670 Instructions Manual 19
Kollmorgen
12/2010 Technical description
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