Description

Schneider Electric 170AAI52040 Modicon Momentum Distributed Analog Input Module

The Schneider Electric 170AAI52040, also cataloged as the Modicon Momentum 4-Input Analog Module, operates as a dedicated hardware component for differential voltage signal acquisition within Modicon Momentum PLC platforms.

Suffix Breakdown & Model Matrix
This model 170AAI52040 is a fixed 4-channel differential analog input module. No further suffix decomposition applies as this part number represents a single configuration with preset input ranges and isolation features.

Hardware Specifications

Parameter	Specification
ModelBrand	Schneider Electric Modicon Momentum
Origin	Manufactured per IEC and EN standards
Weight	0.215 kg
Dimensions	Height: 125 mm, Width: 141.5 mm, Depth: 47.5 mm
OperatingTemp	Industrial ambient (0–60 degC recommended)
PowerConsumption	305 mA @ 24 VDC, max 5.5 W
AnalogueInputNumber	4 channels
AnalogueInputType	Differential
InputRanges	±100 mV 15 bits + sign, ±25 mV 15 bits + sign
InputImpedance	>10000 kOhm
UpdateTime	500 ms
IsolationBetweenChannels	400 V DC
IsolationChannelToGround	500 V AC for 1 minute
IsolationSupplyToGround	500 V for 1 minute
CommonModeVoltage	100 V DC channels to ground, 115 V AC single/three-phase channels
CommonModeRejection	120 dB DC between channels, 130 dB 50 Hz AC between channels, 135 dB DC to ground, 140 dB 60 Hz AC, 145 dB 50 Hz AC to ground, 155 dB 60 Hz AC to ground
SerialModeRejection	35 dB 50 Hz AC, 45 dB 60 Hz AC
ExternalPowerRequirement	±30 V DC
ReversePolarityProtection	Internal
Fuse	Internal 2 A slow-blow; Associated fuse 500 mA fast-blow
LocalSignalling	4 LEDs indicating channel status
ElectricalConnection	2 connectors for removable terminal blocks

Backplane Bus Communication Features

The 170AAI52040 utilizes Modicon Momentum backplane bus architecture for deterministic communication. Firmware flash compatibility ensures module updates do not disrupt adjacent channel operation. Channel-to-channel latency is minimized to maintain synchronous analog acquisition across all four inputs. The module supports high-speed backplane signaling for both Profinet and EtherNet/IP deterministic networks when integrated with Momentum PLC racks.

Frequently Asked Questions

Q: Does the 170AAI52040 support hot-swapping in a running rack?
A: The module is not rated for hot-swap operation; power should be removed before insertion or removal to prevent backplane bus faults.

Q: What is the maximum update rate for analog inputs?
A: Each channel updates at 500 ms; simultaneous acquisition across all four channels occurs within the same interval.

Q: Can firmware be updated in situ without removing the module?
A: Firmware flash is supported via the Momentum backplane; ensure all connected devices are in a quiescent state to avoid write errors.

Field Installation Guidelines

• Ensure the analog input module is mounted on a standard Momentum rack with secure backplane engagement.
• Connect differential signal pairs according to the labeling on removable terminal blocks.
• Shielded cable is recommended for each input to reduce electromagnetic interference; ground shields at a single point.
• Maintain separation from high-voltage AC lines to preserve isolation ratings.
• Observe proper fuse ratings and verify polarity before applying ±30 V DC auxiliary power.
• Verify LED channel status indicators after initial power-up to confirm signal integrity.

Specifications

• Brand: Schneider Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems