-6-
Drawing No. LP0932
Released 2018-01-12
GENERAL DESCRIPTION
The PXU controller accepts signals from a variety of temperature
sensors including thermocouple or RTD. The controller can also be
configured for process inputs including 0 to 5/10 VDC, 0/4 to 20 mA DC,
or 0 to 50 mV DC. The PXU can provide an accurate output control signal
(time proportional or DC Analog Output) to maintain a process at a
determined setpoint value. Dual 4-digit display readings allow viewing of
the temperature/process and setpoint value simultaneously. Front panel
indicators inform the operator of alarm and control output status.
Comprehensive programming features allow this controller to meet a
wide variety of application requirements.
MAIN CONTROL
The PXU allows the user to select between PID, On/Off and Manual
control mode. The PXU has the ability to provide 2 control outputs. The
control outputs can be individually configured for Reverse or Direct
(heating or cooling) applications. The PID tuning constants can be
established via on-demand auto-tune. The PID constants can also be
programmed, or fine-tuned, through the front panel or a PC and then
locked out from further modification.
ALARMS
Alarm(s) can be configured independently for absolute high or low
acting with balanced or unbalanced hysteresis. They can also be
configured for deviation and band alarm. In these modes, the alarm
trigger values track the setpoint value. Adjustable alarm hysteresis can
be used for delaying output response. The alarms can be programmed
for Automatic or Latching operation. A selectable standby feature
suppresses the alarm during power-up until the temperature stabilizes
outside the alarm region.
CONSTRUCTION
The PXU is constructed of a lightweight, high impact, black plastic
textured case with a clear display window. Modern surface-mount
technology, extensive testing, plus high immunity to noise interference
makes the controller extremely reliable in industrial environments.
z
PID AND PROFILE CONTROL
z
ACCEPTS TC and RTD
z
ACCEPTS 0-10 V, 0/4-20 mA or 0-50 mV SIGNALS
z
ASSIGNABLE 4 TO 20 MA OUTPUT
z
CURRENT TRANSFORMER INPUT (OPTIONAL)
z
REMOTE SETPOINT INPUT (OPTIONAL)
z
FUNCTIONS AS A DIGITAL POT
z
ON DEMAND AUTO-TUNING OF PID SETTINGS
z
DC ANALOG CONTROL OUTPUT (OPTIONAL)
z
2 USER PROGRAMMABLE FUNCTION BUTTONS
z
PC (MODELS WITH RS 485) OR FRONT PANEL PROGRAMMING
z
1/16, 1/4 or 1/8 DIN
z
CONTROLLERS MEET IP65 REQUIREMENTS
(48.0)
1.89
1.89
(48.0)
(45.0)
1.77
1.77
(45.0)
6
5
4
3
2
1
12
11
10
9
8
7
15
14
13
16
17
18
0.26
(6.70)
3.14 (79.70)
0.31
(7.80)
0.47 (11.88)
0.83 (21.0)
DIMENSIONS In inches (mm) - 1/16 DIN
PANEL CUT-OUT
Introduction
