Troubleshooting

Table 11-2I/O problems and remedies continued

Symptom

Possible cause

Possible remedy

 

 

 

mA reading correct at low

mA loop resistance may be too high

Verify that mA output load resistance is below

currents but wrong at higher

 

maximum supported load (see installation

currents

 

manual for your transmitter).

 

 

 

Cannot zero with Zero

Not pressing Zero button for sufficient

Button must be pressed for 0.5 seconds to be

button

interval

recognized. Press button until LED starts to

 

 

flash yellow, then release button.

 

 

 

 

Core processor in fault mode

Correct core processor faults and retry.

 

 

 

Cannot connect to terminals

Terminals not in service port mode

Terminals are accessible in service port mode

33 & 34 in service port mode

 

ONLY for a 10-second interval after power-up.

 

 

Cycle power and connect during this interval.

 

 

 

 

Leads reversed.

Switch leads and try again.

 

 

 

 

Transmitter installed on multidrop

All Model 1500 and 2500 devices on network

 

network

default to address=111 during 10-second

 

 

service port interval. Disconnect or power down

 

 

other devices, or use RS-485 communications.

 

 

 

Cannot establish Modbus

Incorrect Modbus configuration

After 10-second interval on power-up, the

communication on terminals

 

transmitter switches to Modbus

33 & 34

 

communications. Default settings are:

 

 

• Address=1

 

 

• Baud rate=9600

 

 

• Parity=odd

 

 

Verify configuration. Default settings can be

 

 

changed using ProLink II v2.0 or higher.

 

 

 

 

Leads reversed

Switch leads and try again.

 

 

 

DI is fixed and does not

Possible internal/external power

Internal means that the transmitter will supply

respond to input switch

configuration error

power to the output. External means that an

 

 

external pull-up resistor and source are

 

 

required. Verify configuration setting is correct

 

 

for desired application.

 

 

 

11.9Transmitter status LED

The Model 1500 transmitter includes a LED that indicates transmitter status. See Table 11-3. If the status LED indicates an alarm condition:

1.View the alarm code using ProLink II.

2.Identify the alarm (see Section 11.10).

3.Correct the condition.

Table 11-3Model 1500/2500 transmitter status reported by the status LED

Status LED state

Alarm priority

Definition

 

 

 

Green

No alarm

Normal operating mode

 

 

 

Flashing yellow

No alarm

Zero in progress

 

 

 

Yellow

Low severity alarm

• Alarm condition: will not cause measurement error

 

 

• Outputs continue to report process data

 

 

• May indicate that the fill is not completely

 

 

configured

 

 

 

Red

High severity alarm

• Alarm condition: will cause measurement error

 

 

• Outputs go to configured fault indicators, unless

 

 

the output is configured for valve control

 

 

 

94

Micro Motion® Model 1500 Transmitters with the Filling and Dosing Application

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Emerson Process Management 1500 manual Transmitter status LED, Status LED state Alarm priority Definition
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1500 specifications

Emerson Process Management 1500 is a cutting-edge distributed control system designed to enhance operational efficiency, safety, and reliability in industrial processes. Renowned for its robust architecture and scalable features, the 1500 system caters to various sectors, including oil and gas, pharmaceuticals, chemicals, and utilities.

One of the standout features of the Emerson 1500 is its modular design, allowing users to customize and scale the system according to their specific needs. This flexibility ensures that operations can grow and adapt without requiring a complete system overhaul. The control system supports a range of I/O modules, enabling integration with various field devices and technologies.

The Emerson 1500 employs advanced control algorithms to optimize process performance. This includes model predictive control (MPC) and multivariable control, which enhance the ability to manage complex processes through predictive analytics. This predictive capability not only improves operational efficiency but also reduces downtime and maintenance costs.

In addition to its advanced control features, the 1500 system is known for its user-friendly interface. Operators can easily navigate the system through intuitive graphics and dashboards, allowing them to monitor processes in real time. This ease of use significantly reduces training time and improves response times during operational changes or emergencies.

Security is a critical concern for modern industrial control systems, and the Emerson 1500 addresses this with a multi-layered security framework. This includes secure communications, robust authentication, and access controls, ensuring that only authorized personnel can interact with the system.

The Emerson Process Management 1500 also emphasizes interoperability, supporting various communication protocols such as Ethernet/IP, Modbus, and HART, facilitating seamless integration with existing infrastructure. This capability is particularly advantageous for organizations looking to modernize their systems without entirely replacing legacy equipment.

Furthermore, the system supports advanced data analytics and cloud connectivity, allowing organizations to leverage big data for predictive maintenance, performance benchmarking, and decision-making processes. By harnessing the power of data, users can achieve greater efficiencies and drive continuous improvement across their operations.

In summary, the Emerson Process Management 1500 is a versatile and advanced distributed control system characterized by modularity, advanced control features, user-friendliness, robust security, interoperability, and data analytics capabilities. Its comprehensive approach ensures that industries can not only meet current operational demands but also prepare for future challenges in an ever-evolving landscape.
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