ABB TET106 11355-0-6050000 PR100 Portable Recorder
Parameter Group 50 The parameters in Group 50 define the encoder signal decoding and
the operation of the ACS 600 in encoder or NTAC module fault
conditions. These parameters are available only after the
communication between the ACS 600 and the NTAC module is
activated with Parameter 98.1.
50.1 PULSE NR This parameter sets the number of encoder pulses per one revolution.
128 … 4096
50.2 SPEED
MEAS MODE
This parameter defines how the encoder pulses are calculated.
- B DIR
Ch A: positive edges calculated for speed.
Ch B: direction.
Ch A: positive and negative edges calculated for speed.
Ch B: not used.
- B DIR
Ch A: positive and negative edges are calculated for speed.
Ch B: direction.
All edges of the signals are calculated.
50.3 ENCODER FAULT This parameter defines the operation of the ACS 600 upon a
communication loss between the pulse encoder and the NTAC module,
or between the NTAC module and the ACS 600.
WARNING
A Warning indication is displayed on the control panel.
FAULT
A Fault indication is displayed on the control panel and the ACS 600
stops the motor.
50.4 ENCODER DELAY This parameter defines the time (in milliseconds) for which
communication may be lost until the ACS 600 takes the action selected
with Parameter 50.3.
0 … 50000

Differences between
NDIO-01 and NDIO-02
All information about the NDIO-02 given elsewhere in this manual also
applies to the NDIO-01, with the exception of what is listed in this
section.
Setting the Module
Node Number
On the NDIO-01, the 7-way DIP switch is used for address setting only
(i.e., the NDIO-01 does not have the hardware filter suppression
feature found in the NDIO-02). Moreover, switch actuator position “ON”
corresponds to “0”. Here are the DIP switch settings for the NDIO-01:
DI1 Hardware Filter
Suppression
This feature is not supported by the NDIO-01.
Technical Data Hardware settings: NDIO-01 has seven DIP switches for address
number setting. See above.
Digital inputs 1 and 2: On the NDIO-01, the hardware filtering cannot
be disabled.