Omega PLATINUM Series, PLATINUM CN32Pt / CN16Pt / CN8Pt Manual

Introduction

The PLATINUM™ Series controller offers unparalleled flexibility in process measurement. While the controller is extremely powerful and versatile, great care has gone into designing a product that is easy to set up and use. Automatic hardware configuration recognition eliminates the need for jumpers and allows the unit's firmware to automatically simplify itself, eliminating all menu options that do not apply to your configuration.

Each unit allows the user to select the input type from 9 thermocouple types (J, K, T, E, R, S, B, C, and N), Pt RTDs (100, 500, or 1000 Ω, with a 385, 392, or 3916 curve), thermistors (2250 Ω, 5K Ω, and 10K Ω), DC voltage, or DC current. The analog voltage inputs are bidirectional and both voltage and current are fully scalable to virtually all engineering units with a selectable decimal point that is perfect for use with pressure, flow, or other process inputs.

Control is achieved using the PID, on/off, or heat/cool control strategy. PID control can be optimized with an autotune feature; and in addition, a fuzzy logic Adaptive Tuning Mode allows the PID algorithm to be continuously optimized. The instrument offers up to 16 Ramp and Soak segments per Ramp and

Soak program (eight each), with auxiliary event actions available with each segment. Up to 99 Ramp and Soak programs can be stored, and multiple Ramp and Soak programs can be chained, creating unmatched ramp and soak programming capability. Multiple Alarms can be configured for above, below, hi/lo, and band triggering using either absolute or deviation Alarm trigger points.

The PLATINUM™ Series controller features a large, three-color, programmable display with the capability to change color every time the Alarm is triggered. Various configurations of mechanical relay, SSR, DC pulse, and analog voltage or current outputs are available. Every unit comes standard with USB communications for firmware updates, configuration management, and data transfer. Optional Ethernet and RS-232 / RS-485 Serial communications are also available. The Analog Output is fully scalable and may be configured as a proportional controller or retransmission to follow your display. The universal power supply accepts 90–240 Vac. The low-voltage power option accepts 24 Vac or 12–36 Vdc.

Additional features usually found only on more expensive controllers make these the most powerful products in their class. Some additional standard features are remote Setpoint for cascaded control setups, High-high/Low-low Alarm functionality, external latch reset, external Ramp and Soak program initiation, combination Heat/Cool Control Mode, configuration save and transfer, and configuration password protection.

Wiring Instructions

Back Panel Connections

Figure 1 – CN8Pt Models: Back Panel Connections

Figure 2 – CN16Pt and CN32Pt Models: Back Panel Connections

Connecting Power

Connect the main power connections to pins 7 and 8 of the 8-pin power / output connector as shown in Figure 3.

Figure 3 – Main Power Connections

Do not connect power to your device until you have completed all input and output connections. Failure to do so may result in injury!

For the low-voltage power option, maintain the same degree of protection as the standard high voltage input power units (90–240 Vac) by using a Safety Agency Approved DC or AC source with the same Overvoltage Category and pollution degree as the standard AC unit (90–240 Vac).
The Safety European Standard EN61010-1 for measurement, control, and laboratory equipment requires that fuses must be specified based on IEC127. This standard specifies the letter code "T" for a Time-lag fuse.

Connecting Inputs

The 10-pin input connector assignments are summarized in Table 1. Table 2 summarizes the universal input pin assignments for different sensor inputs. All sensor selections are firmware-controlled and no jumper settings are required when switching from one type of sensor to another. Figure 4 provides more detail for connecting RTD sensors. Figure 5 shows the connection scheme for process current input with either internal or external excitation.

Table 1 – 10-Pin Input Connector Wiring Summary

Table 2 – Interfacing Sensors to the Input Connector

*For Remote Setpoint with an RTD, Pin 1 on the Output Connector must be used for the RtN instead of Pin 1 on the Input Connector. Remote Setpoint is not available if you are using an RTD sensor and you have an SPDT (Type 3) Output installed.

** Requires external connection to pin 4

Figure 4 – RTD Wiring Diagram

Figure 5 – Process Current Wiring Hookup with Internal and External Excitation

Connecting Outputs

The PLATINUM™ Series supports 5 different types of outputs with the model number numeric designations summarized in Table 3. Your unit comes preconfigured with up to 3 outputs. Table 4 shows the output connector connections for the different configurations offered. Your output configuration is the 3 numeric digits following the first dash in your model number. Table 5 defines the abbreviated codes used in Table 4. Please note that the SPST and SPDT mechanical relays have snubbers built in but only on the normally open contact side.

Table 3 – Output Type Designations

Table 4 – 8 Pin Output/Power Connector Wiring Summary by Configuration

Table 5 – Definitions for Abbreviations in Table 4

PLATINUM™ Series Navigation

Figure 6 – PLATINUM™ Series Display (CN8DPt Shown)

Description of Button Actions

The UP button moves up a level in the menu structure. Pressing and holding the UP button navigates to the top level of any menu (oPER, PRoG, or INIt). This can be a useful way of reorienting yourself if you get lost in the menu structure.

The LEFT button moves across a set of menu choices at a given level (up in the "Complete Menu Structure" Section menu structure tables). When changing numerical settings, press the LEFT button to make the next digit (one digit to the left) active.

The RIGHT button across a set of menu choices at a given level (down in the "Complete Menu Structure" Section menu structure tables. The RIGHT button also scrolls numerical values up with overflow to 0 for the flashing digit selected.

The ENTER button selects a menu item and goes down a level, or it enters a numerical value or parameter choice.

Menu Structure

The menu structure of the PLATINUM™ Series is divided into 3 main Level 1 groups, which are Initialization, Programming, and Operating. They are described in "Level 1 Menu" Section. The complete menu structure for levels 2-8 for each of the three Level 1 groups is detailed in Section "Initialization Mode Menu (INIt)", "Programming Mode Menu (PRoG)", and "Operating Mode Menu (oPER)". Levels 2 through 8 represent sequentially deeper levels of navigation. Values with a dark box around them are default values or submenu entry points. Blank lines indicate user-provided information. Some menu items include links to reference information elsewhere in this user manual. The information in the Notes column defines each menu choice.

Level 1 Menu

Initialization Mode: These settings are rarely changed after initial setup. They include transducer types, calibration, etc. These settings can be password-protected.

Programming Mode: These settings are frequently changed. They include Setpoints, Control Modes, Alarms, etc. These settings can be password-protected.

Operating Mode: This mode allows users to switch between Run Mode, Standby Mode, Manual Mode, etc.

Circular Flow of Menus

The following diagram shows how to use the LEFT and RIGHT buttons to navigate around a menu.

Figure 7 – Circular Flow of Menus

Complete Menu Structure

Initialization Mode Menu (INIt)

The following table maps the Initialization Mode (INIt) navigation:

Programming Mode Menu (PRoG)

The following table maps the Programming Mode (PRoG) navigation:

Operating Mode Menu (oPER)

The following table maps the Operating Mode (oPER) navigation:

Safety Considerations

This device is marked with the international caution symbol. It is important to read this manual before installing or commissioning this device as it contains important information relating to Safety and EMC (Electromagnetic Compatibility).

This instrument is a panel mount device protected in accordance with EN 61010-1:2010, electrical safety requirements for electrical equipment for measurement, control, and laboratory use. Installation of this instrument should be done by qualified personnel.

In order to ensure safe operation, the following instructions must be followed and warnings observed:

This instrument has no power-on switch. An external switch or circuit-breaker must be included in the building installation as a disconnecting device. It must be marked to indicate this function, and it must be in close proximity to the equipment within easy reach of the operator. The switch or circuit-breaker must comply with the relevant requirements of IEC 947–1 and IEC 947-3 (International Electrotechnical Commission). The switch must not be incorporated in the main supply cord.

Furthermore, to provide protection against excessive energy being drawn from the main supply in case of a fault in the equipment, an overcurrent protection device must be installed.

• Do not exceed the voltage rating on the label located on the top of the instrument housing.
• Always disconnect the power before changing the signal and power connections.
• Do not use this instrument on a work bench without its case for safety reasons.
• Do not operate this instrument in flammable or explosive atmospheres.
• Do not expose this instrument to rain or moisture.
• Unit mounting should allow for adequate ventilation to ensure that the instrument does not exceed the operating temperature rating.
• Use electrical wires with adequate size to handle mechanical strain and power requirements. Install this instrument without exposing the bare wire outside the connector to minimize electrical shock hazards.

EMC Considerations

• Whenever EMC is an issue, always use shielded cables.
• Never run signal and power wires in the same conduit.
• Use signal wire connections with twisted-pair cables.
• Install Ferrite Beads on signal wires close to the instrument if EMC problems persist.

Failure to follow all instructions and warnings is at your own risk and may result in property damage, bodily injury and/or death. Omega Engineering is not responsible for any damages or loss arising or resulting from any failure to follow any and all instructions or observe any and all warnings.

Omega Engineering, Inc:
Toll-Free: 1-800-826-6342 (USA & Canada only)

Customer Service: 1-800-622-2378 (USA & Canada only)

Engineering Service: 1-800-872-9436 (USA & Canada only)

Tel: (203) 359-1660
Fax: (203) 359-7700

e-mail: info@omega.com

Documents / Resources

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