1

D

P

A2

A1

O1

MN

DV

%P

13

14

12

11

10

9

8

7

6

5

4

3

2

1

(49.5)

(49.5)

1.95

1.95

4.17 (105.9)

0.37

(9.4)

(44.7)

1.76

1.76 (44.7)

1.772

(45

)

1.772

(45

)

+0.024

-0.000

+0.6

-0.0

+0.024

-0.000

+0.6

-0.0





PID CONTROL WITH REDUCED OVERSHOOT





ACCEPTS 0 to 10 VDC or 0/4 to 20 mA DC INPUTS





OPTIONAL TWO LINEAR DC OUTPUTS (0 to 10 V, 0/4 to 20 mA)





OPTIONAL DUAL ALARM OUTPUTS





OPTIONAL REMOTE SETPOINT INPUT (0/4 to 20 mA)





OPTIONAL RS485 SERIAL COMMUNICATIONS





SECOND SETPOINT SETTING





SETPOINT RAMPING FOR PROCESS STARTUP





PROGRAMMABLE USER INPUT (Digital) FOR ADDED FLEXIBILITY





PARAMETER SECURITY VIA PROGRAMMABLE LOCKOUTS





MANUAL/AUTOMATIC CONTROL MODES





ON DEMAND AUTO-TUNING OF PID CONTROL SETTINGS





DUAL LED DISPLAYS FOR SIMULTANEOUS INDICATION OF

PROCESS AND SETPOINT





STATUS INDICATORS FOR OUTPUTS AND CONTROL MODES





PC SOFTWARE AVAILABLE FOR CONTROLLER CONFIGURATION





NEMA 4X/IP65 BEZEL

DESCRIPTION

The P48 Controller accepts either a 0 to 10 VDC or a 0/4 to 20 mA DC signal,

precisely displays the input process signal according to the programmable

scaling points, and provides an accurate output control signal (time proportional

or linear DC) to maintain the process at the desired control point. The

controller’s comprehensive yet simple programming allows it to meet a wide

variety of application requirements.

In the PID control mode the controller operates with on-demand auto-tune,

which will establish the tuning constants. The PID tuning constants may be fine-

tuned by the operator at any time and then locked out from further modification.

The controller employs a unique overshoot suppression feature, which allows

the quickest response without excessive overshoot. The unit can be transferred

to operate in the manual mode, providing the operator with direct control of the

output. The controller may also operate in the ON/OFF control mode with

adjustable hysteresis. a second setpoint is available to allow quick selection of

a different setpoint setting.

Dual 4-digit displays allow viewing of the process and setpoint simultaneously.

Front panel indicators inform the operator of the controller and output status. On

some models, the main control output and the alarm outputs are field

replaceable.

Optional alarm(s) can be configured to activate according to a variety of

actions (Absolute HI or LO, Deviation HI or LO, and Band IN or OUT) with

adjustable hysteresis. A standby feature suppresses the alarm during power-up

until the process stabilizes outside the alarm region. The second alarm can be

configured as a secondary PID output (heat/cool applications).

Optional Main Linear DC output (10 V or 20 mA) can be used for control or

process re-transmission purposes. Programmable output update time reduces

valve or actuator activity. The output range can be scaled independent of the

input range.

Optional Second Linear DC output (10 V or 20 mA) provides an independent

process re-transmission, while the main Linear DC output is being used for

control. The output range can be scaled independent of the input range.

Optional Remote Setpoint input (0/4 to 20 mA) allows for cascade control

loops; and allows for remotely driven setpoint signal from computers or other

similar equipment. Straightforward end point scaling with independent filtering

and local/remote transfer option expand the controller’s flexibility.

The optional RS485 serial communication interface provides two-way

communication between a P48 and other compatible equipment such as a printer,

PLC, HMI, or a host computer. In multipoint applications (up to thirty-two), the

address number of each P48 on the line can be programmed separately from 0 to

99. Data from the P48 can be interrogated or changed, and alarm output(s) may

be reset by sending the proper command code via serial communications. PC

software, SFCRM, allows for easy configuration of controller parameters. These

settings can be saved to disk for later use or used for multi-controller down

loading. On-line help is provided within the software.

The unit is constructed of a lightweight, high impact plastic case with a tinted

front panel. The front panel meets NEMA 4X/IP65 specifications when properly

installed. Multiple units can be stacked horizontally or vertically. Modern surface-

mount technology, extensive testing, plus high immunity to noise interference

makes the controller extremely reliable in industrial environments.

MODEL P48 - 1/16 DIN PROCESS CONTROLLER

DIMENSIONS In inches (mm)

PANEL CUT-OUT

CAUTION: Risk of Danger.

Read complete instructions prior to

installation and operation of the unit.

CAUTION:

Risk of electric shock.

UL Recognized Component,

File # E156876

Bulletin No. P48-E

Drawing No. LP0464

Released 03/11

Tel +1 (717) 767-6511

Fax +1 (717) 764-0839

www.redlion.net