NOVUS AUTOMATION
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Indicator N1500LC
UNIVERSAL INDICATOR – INSTRUCTIONS MANUAL – V2.3x E
SAFETY ALERTS
The symbols below are used on the equipment and throughout this
document to draw the user’s attention to important operational and
safety information.
CAUTION:
Read this manual carefully prior to
installation and operation of the
unit.
CAUTION OR DANGER:
Electric shock hazard
All safety related instructions that appear in the manual must be
observed to ensure personal safety and to prevent damage to either the
instrument or the system. If the device is used in a manner not
specified in this manual, its safety features may be impaired.
INTRODUCTION
The N1500LC is an indicator designed for weighing system with load
cells. It accepts a wide variety of electrical signals. It has a display
with six-digit LED display for the measured value and device
parameters.
The whole device configuration is done through the keyboard without
any change in the circuit. Thus, the selection of input type and the
type of alarms action, besides other special functions are all
accessed and programmed through the front keypad.
It is important that you read this manual carefully before using the
instrument. This is an electronic device that requires care in handling
and operation, and if properly used, it will be very efficient in the work
required.
The main features of the basic version of N1500LC are as follows:
•
Input: 4-20 mA, 0-20 mA, 0-50 mV, 0-20 mV e -20 a 20 mV;
•
Increasing or decreasing display;
•
10 Vdc (or 5 Vdc) power supply for load cells;
•
Memory for maximum and minimum values;
•
Hold, peak hold, tare, zero tare and automatic zero functions;
•
Digital input;
Optionally can have:
•
Process Variable (PV) retransmission in 0-20 mA ou 4-20 mA;
•
RS485 MODBUS RTU serial communication;
•
3rd and 4th alarm relays.
The front panel is shown below, with a description of its elements.
Figure 1 -
Identification of the elements of the front panel
Display
: Displays the value of the measured variable (PV) and the
mnemonics of the device programming parameters.
A1, A2, A3
and
A4
: show active alarms.
Rx
and
Tx
: indicate RS485 communication line is active.
P
key
- This key is used to access different displays with the
programmable parameters of the device.
BACK key
- This key is used to go back to the previous
parameter displayed in the menu display.
INCREMENTS/ZERO key and
DECREMENTS/ZERO
key
-
They make possible the change the parameter values.
They are also used to display maximum and minimum
values stored in memory.
Key Special FUNCTION
- This special function key is used for
programmed functions as explained in the SPECIAL FUNCTION KEY
section of this manual.
PROCESS VARIABLE INPUT - PV
The type of input to be used by the indicator must be set by the user
via the keyboard, among types established in
Table 1
.
All input types available are factory calibrated and require no further
adjustment by the user, except the definition of range of indication.
Type
Code
Measurement Range
Non-linear 4-20 mA
c.4-20
Programmable indication range.
Three
maximum
range options:
-32000 to +32000
0 to +60000
0 to +120000 (only even values)
Nonlinear signals will be
linearized according to the
programmed linearization.
Non-linear 0-20 mA
c.0-20
Linear 4-20 mA
4-20 a
Linear 0-20 mA
0-20 a
Non-linear 0-50 mV
c. 50
Non-linear -20 a 20 mV
c. -20
Non-linear 0-20 mV
C. 20
Linear 0 – 50 mV
50
Linear -20 a 20 mV
-20 . 20
Linear 0-20 mV
20
Table 1
- Input types accepted by the indicator
