Chapter 3 – Operation
3-6 ACS 600 Master/Follower Application Macro
Follower Supervision
There are two analogue outputs and three relay outputs in the ACS 600
for the external supervision purposes. By default, analogue output AO1
gives the motor speed and AO2 the motor current as 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.
It is possible to supervise the M/F Link with Parameters 30.18 COMM
FAULT FUNC and 30.19 COMM FAULT TIMEOUT. Parameter 30.18
defines the action (NO/FAULT/WARNING) when an error is detected on
the M/F Link. Parameter 30.19 sets the time between the detection and
the action defined by Parameter 30.18. For more information, see the
Firmware Manual, Appendix C
.
CAUTION! The Follower does not send any feedback data to the
Master. Therefore it is recommended to separately wire the fault
information of the Follower to the Master. See
Chapter 2 – Installation
and M/F Link Specification
.
Pulse Encoder
Connection
If speed measurement is required with Master or Follower stations, the
NTAC-02 Pulse Encoder Interface Module must be connected to
channel CH1. The following parameter values must also be set:
• 50.04 ENCODER CHANNEL: CHANNEL1
• 70.03 CH1 BAUDRATE: 4 Mbit/s.
Note that the new parameter values take effect only after the power to
the drive and the NTAC-02 module are switched off and on.
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