Honeywell CC-PDOD51 Series C Digital Output Module

Product Overview

The Honeywell CC-PDOD51 module switches reliable 24V digital signals. It controls solenoids, interposing relays, and other process equipment. This unit uses a bussed output architecture. All channels share a common return path to ground.

Manufactured by Honeywell, the CC-PDOD51 belongs to the Series C I/O family. It features a conformal coating for harsh environments. The module supports both internal and external field power excitation. Users can achieve galvanic isolation from the Series C power system. A wiring option on the IOTA determines the power source reference.

Technical Specifications

The CC-PDOD51 operates as a SINK (Open Drain) output type. It drives loads directly to ground. Below are the core technical parameters.

• Output Channels: 32 independent channels

• Output Type: SINK (Open Drain)

• Load Voltage: 30 VDC Maximum

• Load Current: 0.1 A per channel (Max)

• Galvanic Isolation: 1000 VAC RMS for system-to-field isolation

• On-State Voltage: 0 VDC (at 0.1A max load current)

• Off-State Voltage: 24 VDC typical

• Off-State Leak Current: 100 µA maximum

• Turn-On/Turn-Off Time: 10 ms maximum

• Switchover Gap (Redundancy): None (0 milliseconds)

The CC-PDOD51 requires a user-supplied field power source for isolation. The off-state leakage remains very low at 100 µA. This prevents false triggering of sensitive loads. The fast 10 ms response suits time-critical applications.

IOTA Termination Assemblies

This module mates with specific Honeywell IOTA bases. Choose the correct base for your system.

• CC-TDOD51: Non-redundant, 9-inch form factor

• CC-TDOD61: Redundant, 12-inch form factor

The IOTA determines field wiring and power referencing. Always verify compatibility before installation.

Installation Guidance

Follow these steps for a safe installation.

1. Power Down: Disconnect all system power before handling.

2. Mount IOTA: Secure the CC-TDOD51 or CC-TDOD61 base to the rack.

3. Seat Module: Insert the CC-PDOD51 firmly into the IOTA.

4. Apply Power Source: Connect either system 24VDC or an external supply.

5. Wire Field Devices: Connect each load between the output channel and common return.

6. Test Isolation: Verify external power source for 1000VAC isolation.

Use copper conductors only. Tighten terminals to the specified torque. Do not hot-swap the module during operation.

Environmental & Quality Features

The Honeywell CC-PDOD51 includes a coated circuit board. This coating resists dust, moisture, and airborne contaminants. The module operates reliably in industrial control rooms. Its high noise immunity prevents false outputs.

Package Contents

• One Honeywell CC-PDOD51 Series C Digital Output Module

• One conformal coated circuit board assembly

• One product identification label

• One anti-static protective bag

• Installation and wiring guide (digital format available)

Frequently Asked Questions (FAQ)

Q1: Can the CC-PDOD51 drive a 24V solenoid valve directly?
A1: Yes, the CC-PDOD51 drives solenoids up to 0.1A per channel. Check your valve’s inrush current first.

Q2: What is the difference between CC-TDOD51 and CC-TDOD61?
A2: The CC-TDOD51 supports non-redundant 9″ IOTA bases. The CC-TDOD61 supports redundant 12″ IOTA bases.

Q3: Is external power mandatory for the CC-PDOD51?
A3: No, the CC-PDOD51 uses internal system power or an external 24V supply. External power enables full galvanic isolation.

Q4: What happens if I exceed 0.1A on one channel?
A4: Exceeding 0.1A may damage the output transistor. Use an interposing relay for higher current loads.

Q5: Does the CC-PDOD51 support output status feedback?
A5: No, this module provides no read-back of field status. Use separate inputs for load verification.