TC-OAV081 Honeywell Analog Output Module

Overview

The Honeywell TC-OAV081, also cataloged as the TC-OAV081 Analog Output Module, provides eight analog output channels for voltage and current signal generation in Honeywell process control systems. The module supports voltage outputs from -10.4 V to +10.4 V and current outputs from 0 to 21 mA, with a 25 ms update rate for all channels.

Hardware Specifications

Analog Signal Output and DCS Interface Characteristics

The TC-OAV081 converts controller output commands into analog voltage or current signals for external field devices. Its eight channels support analog signal generation, with a specified module update rate of 25 ms across all channels.

The voltage output range extends from -10.4 V to +10.4 V, while the current output range extends from 0 to 21 mA. Electronic current limiting protects against open- and short-circuit conditions by limiting output current to 21 mA or less. The module also specifies continuous protection against 24 VAC/VDC overvoltage at room temperature.

The user-to-system isolation test voltage is 2550 VDC for 1 s. This specification describes the stated isolation test and does not independently establish channel-to-channel isolation.

Frequently Asked Questions (FAQ)

Q: How many analog output channels does the TC-OAV081 provide?

A: The TC-OAV081 provides eight analog output channels with voltage and current output capability.

Q: What load resistance does the TC-OAV081 support?

A: The specified voltage drive capability is greater than 2000 ohms. The current output supports loads from 0 to 750 ohms.

Q: Which terminal block is specified for the TC-OAV081?

A: The specified connection terminal block is the Honeywell TC-TBNH, with 20 positions.

Field Installation Guidelines

• Verify the module model and terminal block type before installation.
• Confirm the field device input type and signal range before connecting voltage or current output wiring.
• Check the field load resistance against the specified voltage or current drive capability.
• Route analog signal cables separately from high-voltage and high-current wiring to reduce electromagnetic interference.
• Apply cable shielding and grounding according to the Honeywell system installation documentation.
• Verify field wiring polarity and terminal assignments against the applicable module wiring diagram before energizing the circuit.
• Confirm that external overvoltage conditions remain within the specified protection limits.

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