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Honeywell MC-GHAO11 51309540-175 Analog Output Field Termination Assembly

Configured for 16-channel analog current output execution in Honeywell DCS I/O architectures, the Honeywell MC-GHAO11 51309540-175 (MC-GHAO11 Analog Output Field Termination Assembly) provides direct physical and electrical output interface control for 4-20 mA field signals.

Hardware Specifications

Parameter	Specification
Model	MC-GHAO11 51309540-175
Brand	Honeywell
Product Type	Analog Output Field Termination Assembly
Origin	USA
Weight	2 kg
Dimensions	30.7 x 12.4 x 12.5 cm
Output Channels	16 channels
Output Type	4-20 mA analog current output
Absolute Max Current Output for AO Value Digital Input Code	24 mA
Output Readback Accuracy	+/- 4%
Output Current Linearity	+/- 0.05% nominal
Output Resolution	+/- 0.05%
Directly Settable Output Current Range	0 mA, 2.9 mA to 21.1 mA
Output Ripple	100 mV peak-to-peak at power line frequency
Gap (0 mA) of Output to Field on Failover	20 ms maximum
Switching Hardware Diagnostic Frequency	Once per minute
Tariff Code	8537101190

Process Control Current Loop Interface

The MC-GHAO11 51309540-175 handles analog output termination between the Honeywell control system and field devices. The module supports sixteen independent 4-20 mA output channels for actuator commands, valve positioning signals, and analog control references.

In addition, the assembly provides output monitoring functions through readback measurement. The system compares commanded output values with field-side feedback signals to identify output deviations. The analog current circuit maintains nominal linearity within +/- 0.05% under specified operating conditions.

For Honeywell process control applications, the module supports standard instrumentation interfaces based on current loop transmission. Channel-to-channel isolation design and controlled output switching behavior help maintain signal separation during normal operation and failover conditions.

Frequently Asked Questions

Q: How many analog output channels does the MC-GHAO11 51309540-175 provide?
A: The MC-GHAO11 provides 16 analog output channels, with each channel supporting 4-20 mA current output signals.

Q: What output current range can the module directly set?
A: The module can directly set output values at 0 mA and within the 2.9 mA to 21.1 mA range.

Q: What is the failover switching response time of the output circuit?
A: The output transition from a 0 mA condition to the field interface during failover occurs within 20 ms maximum.

Field Installation Guidelines

Install the MC-GHAO11 51309540-175 according to the Honeywell I/O cabinet configuration requirements and approved wiring diagrams.

Verify the following installation conditions:

• Confirm that the module connector and termination points match the designated Honeywell I/O hardware configuration.
• Separate analog signal wiring from high-voltage power cables to reduce electromagnetic interference.
• Use shielded instrumentation cables for 4-20 mA field connections where required by the installation design.
• Connect cable shields according to the site grounding standard to prevent signal noise and ground loop effects.
• Check field polarity and loop continuity before applying system power.
• Verify output channel addressing and control system configuration before commissioning.

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