631 Digital Servo Drive

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by any means to persons not employed by a Eurotherm group company without ... Eurotherm Drives cannot accept responsibility for damage, injury, or expenses.
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5HDFWLRQV#RI#6XSSO\#9ROWDJH#6XSHUYLVLQJ#)XQFWLRQV The following diagram refers to the internal dc bus voltage (rectified from an ac voltage). Note that voltage ripple effects have to be taken in to account, refer to Chapter 11: “Technical Specifications” - Derating of Output Voltage. Variations of internal DC Bus Voltage

DC 400 V DC 380 V DC 373 V Nominal Area DC 280 V

DC 100 V*

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Display Drive Status

Precharge 2 seconds

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Fail Low Voltage

Reset by ok Dynamic power down Braking

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Fail High voltage

* Default value, may be changed using EASYRIDER 964#'LJLWDO#6HUYR#'ULYH

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+LVWRU\#6WDWXV#0HPRU\ When the unit is powered down, a set of important indicators is stored in to dedicated memory. This allows the last eight status conditions to displayed by the EASYRIDER ? diagnostic menu Thus important failure information, for instance, is not lost when the unit is powered down.

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5RXWLQH#0DLQWHQDQFH Periodically inspect the Servo drive for build-up of dust or obstructions that may affect ventilation of the unit. Remove this using dry air.

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