NOVUS AUTOMATION
1/7
NC400-6 Counter
ELECTRONIC PROGRAMMABLE COUNTER – INSTRUCTIONS MANUAL – V1.2x E
SAFETY ALARMS
The following symbols appear in the device and throughout this
manual to call the user’s attention as to important information related
to safety and device use.
CAUTION:
Read manual carefully before
installing and operating the device
CAUTION OR DANGER:
Risk of electrical shocks
All safety recommendations must be followed as to warrant the
individual’s safety and prevent damage to the instrument or system. If
the instrument is used in another way other than that specified in this
manual, the equipment safety protections may not work properly.
Over Temperature Protection
When a system is designed, it is fundamental that one considers the
consequence of any failure in any component of such system. In
temperature control application, danger is even higher when heating
remains constantly on. In applications where physical damage or
device destruction may occur, the installation of an independent
protection device is recommended, which has its own temperature
sensor and can turn off the heating circuit in case of over heating. Note
that the counter output relays of NC400-6 do not offer protection to all
failure conditions.
INTRODUCTION
NC400-6 is an advanced 6-digit counter that also performs batch and
totalizer counting operations. It has two outputs with independent and
configurable presets that can be triggered based on counting, batch
or totalization values. Its 2 outputs allow for an independent timed
triggering.
The counting input can be configured to read dry-contact, voltage
pulse, NPN our PNP sensor connections. Sensors may be powered
by an internal power supply.
Counting mode can be configured as progressive, regressive,
quadrature, ADD or SUB. Several reset modes — automatic or
manual — can be configured. Manual reset can be generated by a
digital input or key from the front panel.
DESCRIPTION
The NC400-6 counter and its configuration parameters are divided in
the following blocks:
•
Inputs
•
Main counter
•
Batch counter
•
Totalizator counter
•
OUT1
•
OUT2
Each of these blocks has its own set of configuration parameters,
which together determine how the device works. A summary of the
operation of each block is presented below as well as their
parameters.
INPUTS
NC400-6 has three inputs that can be configured to read contacts,
NPN sensors, PNP sensors or voltage pulse connections. All inputs
must receive the same type of input signal. Functions of each input
are:
COUNT1:
Main counting input
HOLD/COUNT2: Input to hold counting or second counting input. The
second counting input is required when the NC400-
6 counter increases or decreases actions are
determined by an external signal (quadrature
signals, for example).
RESET:
Input for external
reset
of counters and/or outputs.
The following configuration parameters are directly related to the
operation of inputs:
SEnS.tY
Selection of type of signal (contact, pulse,
NPN, PNP).
Coun.tY
Selection of counting speed (slow or fast).
Coun.UP
Progressive or regressive counting choice
and use of COUNT2 input.
MAIN COUNTER
It counts pulses from inputs, showing the value in the display after
multiplying it by a configurable scaling factor. Manual or automatic
reset. Two Set points can be defined (presets); when they are
reached they produce configurable actions (enable output, increment
batch counter, reset counter etc.) The following configuration
parameters are directly related to the main counter operation.
FActor
Factor that multiplies the number of input
pulses (
0.00001
to
9.99999
).
SP1 C
Set point 1 for the main counter.
SP2 C
Set point 2 for the main counter.
OPt.SP.C
Condition for Set point 1 reached (main
counter higher or lower than Set point 1).
OFF.C
Initial value (O
ffset
) for main counter.
rES.C
Reset
options in the main counter (input,
key, Set point, output, etc.).
