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Thank you for choosing a NIVELCO instrument.
We are sure that you will be satisfied throughout its use!
1.
GENERAL DESCRIPTION
The UNICONT PMM-500 universal display and controller instruments are 1/16 DIN (48x48mm) size, panel
mountable, modern, easy of use microprocessor based devices supporting versatile functions. EEPROM
memory ensures data- and program protection during power outages.
The universal input can be connected with wide range of temperature sensors (Pt-100 RTD-s and most type
of thermocouples), or standard analogue current and voltage signals (mA, mV, V).
The instrument operates its control outputs in accordance to selected control algorithm generated from the
measured input values of various physical parameters.
The control algorithm can be ON-OFF, or PID, therefore it can provide differential control, or can realize
multiple control characteristics.
Using the Auto Tuning mode, the instrument provides optimal settings without entering any P-I-D
parameters.
The controller has multiple outputs: relay, SSR-driver, analogue current-, or voltage output, RS485
communication. The modular structure provides wide selection of output variations. In accordance to the
mechanical structure of the output boards (plug-in PCB-s) there is a possibility to order special (differing
from the standard) variations.
Inputs
Outputs
Thermocouple
Voltage signal
PMM-500
Universal
controller
Relay
SSR driver
RS485 communication
Power supply for
transmitters
ON
-O
FF
PI
D
Heat
/
Coo
l
oper
at
io
n
Manu
al
mode
Controls
The RS485 Modbus RTU serial output provides digital communication interface with PC and remote
programming possibility.
Some models have 24V DC output performing power supply for transmitters.
The large bi-coloured 2-line, 7-segmented, 4-digit LED display provides easy reading even from far distance.
It indicates the Process (PV) and a Set-point (SV) Value, as well the programming steps or other settings.
Operation modes and alarm signals are indicated with LED-s. The 4 push-buttons provide easy
programming.
