CHAPTER 3 – CONTROL SYSTEM 54
3.3 I/O interfaces
3.3.1 IOEC I/O modules
Overview
Internal and external, analog and binary I/O signals
are connected to the control system by IOEC mod-
ules.
The standard I/O includes one external module
(IOEC 2) and one module that is internal to the
drive operation (IOEC 1). The standard I/O pro-
vides standard control and supervision functional-
ities sufficient for most applications.
The drive can include optional expansion I/O that
includes an external module (IOEC 4) and an inter-
nal module (IOEC 3). These expansion modules pro-
vide extra inputs and outputs for control and
supervision as may be required by ABB or the cus-
tomer to support various control options.
3-6 IOEC modules
overview
3-7 IOEC modules
location
3-6
IOEC 4
IOEC 1
IOEC 2
IOEC 3
AMC circuit board
Standard Standard Option Option
3-7
Standard internal IOEC 1 (A3401)
Standard external IOEC 2 (A3411)
Optional internal IOEC 3 (A3421)
Optional external IOEC 4 (A3431)
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