Chapter 3 - Operation; Master Station; Control And Supervision; Master/Follower Connection Activation - ABB ACS 600 Supplement To Firmware Manual

Master Station

Control and Supervision

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Master/Follower
Connection Activation
ACS 600 Master/Follower Application Macro
The default settings of the Master/Follower macro parameters meet the
requirements of a typical Master station. The Master station follows
speed reference. The reference and the control commands are given
through the standard input/output signal interface (NIOC board) of the
ACS 600.
The default settings of parameters define the external control of the
master as follows (see Figure 2-2):
• Speed reference is given through analogue input AI1 (0 to 10 V).
• Start, Stop commands are given through digital input DI1.
• Direction command is given through digital input DI2.
• Run enable signal is given through digital input DI6.
• A constant speed is activated through digital input DI4
(the speed value is defined with Parameter 12.05).
The control commands and the reference can also be given from the
Control Panel. To switch between local (i.e. Control Panel) and external
control, use the LOC/REM key on the Panel. "L" on the first row of the
display indicates that the ACS 600 is in local control.
There are two analogue outputs and three relay outputs for external
supervision purposes. By default, analogue output AO1 indicates the
motor speed and AO2 the motor current as a 0 to 20 mA current signal.
The relay outputs give the indications Ready (RO1), Running (RO2)
and No fault (RO3).
The actual signals shown on the Control Panel display are speed,
torque and control location.
A fieldbus adapter connected to Channel CH0 on the NAMC board can
be used for controlling the Master-Follower drive system.
To activate the connection to the Follower stations, Parameter 60.01
MASTER LINK MODE must be changed to MASTER. Parameters
60.07 and 60.08 define the references (EXT1/EXT2) to be sent to the
Follower(s).
Chapter 3 – Operation
3-1