ABB ACS850-04 Hardware Manual page 31

Drive modules (160 to 560 kw, 200 to 700 hp)
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The control unit layout is shown below (cover assembly and protective coverings of
the slots removed).
Slots 1 and 2 for
optional I/O extension
and encoder/resolver
interface modules
Slot 3 for optional
fieldbus adapter
module
External 24 V power input
Relay outputs
+24VD
Digital inputs
Digital input/outputs
Analog inputs
Analog outputs
Drive-to-drive link
Safe torque off connection
Control panel / PC connection
Memory unit (JMU) connection
Operation principle and hardware description
31

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