Red Lion GMPID Single and Dual PID Modules User Manual

Model gmpid – graphite™ series pid modules, General description, Dimensions in inches (mm)

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DEDICATED SINGLE AND DUAL PID MODULES FOR THE

GRAPHITE SERIES

FULLY ISOLATED DESIGN PROVIDES RELIABLE OPERATION

PID CONTROL WITH REDUCED OVERSHOOT

UNIVERSAL INPUTS ACCEPT TC, RTD, 0-10 V and 0/4-20 mA

SIGNALS

ON DEMAND AUTO-TUNING OF PID SETTINGS

DC ANALOG OUTPUT (OPTIONAL, GMP1 ONLY)

HEATER CURRENT INPUT (OPTIONAL) ENSURES DETECTION

OF HEATER CIRCUIT FAILURE

WINDOWS

®

CONFIGURATION SOFTWARE

GENERAL DESCRIPTION

The Model GMPID series modules are full featured PID controllers designed

for use with the Graphite Series. The GMP1 is a single loop controller, while the

GMP2 is a dual loop controller. The design of the system provides a true

modular PID control platform for multi-zone control applications. The modules

can accept a wide range of thermocouple, RTD, 0-10 V, 0/4-20 mA signals. With

multiple discrete outputs, plus an optional analog output (GMP1 only), the

GMPID modules can perform virtually any combination of time-proportioning

or linear control for heat, cool, or heat/cool applications. The discrete outputs

may also be assigned to one of seven internal soft alarms. The GMP1’s optional

linear output can be assigned to transmit virtually any internal variable.

The modules connect and communicate via proprietary USB connection to

the various Graphite host devices. The Graphite host devices, equipped with

serial ports as well as an Ethernet port(s), allows the system to share data with

PCs, PLCs, and SCADA systems. The maximum number of modules various for

each Graphite host device, see specific models for details.

Once programmed, the module will continue to operate/control independent

of the Graphite host device as long as power is applied. Remove power from the

host device before installing or replacing any modules.

The GMPID modules are available with various discrete output combinations,

including relays, and open drain MOSFETs. For applications requiring large

loads to be controlled, several DIN rail mount relays are available.

The modules can operate in On/Off, P, PI, or PID control mode, and use an

on-demand Auto-Tune that establishes the tuning constants. The PID constants

may be fine-tuned through the serial or Ethernet interface. The modules employ

a unique overshoot suppression feature, which allows the quickest response

without excessive overshoot. The modules can also be operated in manual mode,

providing the operator with direct control of the output.

CONFIGURATION

The Graphite Series is configured with Windows

®

compatible Crimson

®

software. The software is an easy to use, graphical interface which provides a

means of communication configuration, as well as commissioning and

calibration of new systems.

ALARMS

Each loop within the modules has seven internal “soft” alarms, which can be

assigned to trigger any output. This includes four process alarms, two heater

current, and one input fault alarm.

ANALOG OUTPUT OPTION (GMP1 ONLY)

The optional DC Analog Output (10 V or 20 mA) can be independently

configured and scaled for control or re-transmission purposes.

HEATER CURRENT MONITOR OPTION

The optional Heater Current Monitor input is useful for early warning of

heater degradation, or heater circuit failure. The input connects to a current

transformer with an output of 100 mA AC to ensure that proper heater current is

present when the control output is on, and that little or no current is present when

the output is off. This provides immediate warning of a circuit short or open,

instead of waiting for a high or low temperature shutdown alarm.

MODEL GMPID – GRAPHITE™ SERIES PID MODULES

Bulletin No. GMPID-C
Drawing No. LP0922
Released 04/14

Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net

4.65

(118)

2.97 (76)

1.25 (32)

This terminal

GMP2 only

DIMENSIONS In inches (mm)

CAUTION: Risk of Danger.

Read complete instructions prior to

installation and operation of the unit.

CAUTION: Risk of electric shock.

C

US LISTED

UL

R

IND. CONT. EQ.

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