Schneider 140DDM39000C Discrete I/O Module

Product Overview

The 140DDM39000C combines digital inputs and outputs in one Quantum rack slot. You will find this module in space-constrained control panels and remote I/O stations. It provides 24 input channels and 16 output channels on a single unit. Furthermore, this module reduces backplane slots compared to separate I/O cards. Therefore, you save valuable rack space for other functions.

Technical Specifications

The table below lists all key parameters for this discrete I/O module.

Parameter	Value / Description
Full Model	140DDM39000C
Category	Discrete I/O Module
Dimensions (W x H x D)	12.0 cm x 12.5 cm x 8.5 cm (4.72 in x 4.92 in x 3.35 in)
Weight	0.48 kg (1.06 lb)
Input Channels	24, 24V DC sink/source
Output Channels	16, 24V DC sink (0.5A per channel)
Input Current	7 mA typical at 24V
Input Response	3 ms typical
Output Response	< 1 ms turn-on, < 2 ms turn-off
Main Connector	One 40-pin removable terminal block
Onboard Components	48 resistors, 24 optocouplers, 16 transistors, 12 capacitors
Energy Storage	None (no capacitors above 10 µF)
Operating Voltage	24V DC ±20% (from backplane)
Field Supply	24V DC ±20% (external for outputs)
Current Draw	0.12 A (logic) + up to 8A (output loads)
Isolation	1500V RMS between field and logic
Status Indicators	One green LED per input and output channel
Mounting	Quantum rack slot

The 140DDM39000C stores no energy that requires any discharge procedure. Therefore, you can handle this module immediately after power removal. Use the 40-pin terminal block for all field device connections. Meanwhile, the outputs share two common return pins for external supply wiring.

Installation and Compatibility

You can mount this module in any Quantum rack slot. Insert the 140DDM39000C into the chosen slot until the backplate locks securely. Then connect the external 24V supply to the output common terminals. Always verify the input voltage polarity matches your sensor type.

This module works with all Quantum processors and remote I/O adapters. It auto-detects input and output configurations on power-up. The 140DDM39000C replaces older 140DDM39000 models with higher channel density.

Environmental and Safety Data

The 140DDM39000C operates from 0°C to +60°C. It withstands 2g vibration per IEC 60068-2-6 testing. The circuit board has a full conformal coating. Consequently, you can use this module in harsh industrial environments. Do not exceed 0.5A per output channel or 8A total per common.