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ABB ACS850 series User Manual

ABB ACS850 series
28 pages
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ABB MACHINERY DRIVES
Application guide
ATEX-certified Safe disconnection function,
Ex II (2) GD for ACS850 drives (+Q971)
+24 V
Control
circuit
Drive
33
3
~
Ex
motor
Control
circuit
XSTO
XSTO
1
2
3
4

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ABB ACS850 series Specifications

General IconGeneral
Frequency50/60 Hz
Output Voltage0 to Input Voltage
Output Frequency0 to 500 Hz
Control MethodScalar control, Vector control
Communication ProtocolsCANopen
Protection ClassIP21, IP55
I/ODigital and Analog Inputs/Outputs, Relay Outputs
Voltage Range380 to 690 V AC

Summary

Introduction to the guide

Safety instructions

Read and follow all safety instructions. Ignoring them can cause injury, death, or equipment damage.

The ATEX-certified Safe disconnection function

The Safe torque off (STO) function (+Q971) is certified as a Safe disconnection function for potentially explosive atmospheres.

Implementing a Safe disconnection function

Two-channel connection to drive STO terminals

Describes implementing an ATEX-compliant motor thermal protection circuit using a two-channel (redundant) connection to drive STO terminals.

Thermal motor protection with two-channel connection

Implementation of ATEX-compliant thermal motor protection circuit with a two-channel connection, monitoring motor temperature with a protection relay.

Technical data

ATEX certificates

Details of the EC-Type Examination Certificate for the ATEX certified safe disconnection function.

Declaration of Conformity

The EU Declaration of Conformity stating that products meet all relevant requirements of the EU Directive for Equipment for Explosive Atmospheres.

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