Encoder SSI Input Module 2 Channel

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Basic Info

Model No.	CT-5122
Brand Name

Product description

CT-5122 Encoder SSI Input Module 2 Channel

Module features

In high-precision absolute positioning applications, incremental encoders risk position loss during power cycles, while SSI absolute encoders—though superior—are often hindered by complex configuration and poor interoperability.?

The CT-5122 SSI Encoder Input Module from Sichuan Odot Automation solves this challenge with a robust, flexible design. Supporting two independent SSI (Synchronous Serial Interface) absolute encoder channels, it operates at up to 2 MHz clock frequency, enabling rapid acquisition of single-turn or multi-turn absolute position data—ideal for CNC machine tool spindles, robotic joints, wind turbine pitch control, and precision rotary tables where position integrity is critical.?

The module offers full protocol customization: users can configure data bit length, start/end bit positions, and reading interval time to seamlessly integrate diverse SSI encoders. Each channel includes one digital input (5V/24V compatible), one 5V digital output, and features magnetic isolation between field signals and the internal bus for exceptional noise immunity. Sixteen LED indicators provide real-time visibility of communication status, power, and channel activity, streamlining commissioning and maintenance.?

As a key motion-sensing component of the ODOT open automation platform, the CT-5122 delivers a reliable, no-homing, power-loss-safe position feedback solution with unmatched flexibility and industrial robustness.?

Technical Parameters

General parameters
Power	Max.60mA @ 5.0Vdc
Isolation	I/O to internal bus: magnetic isolation (3KVrms)
Field Power	Nominal:24Vdc, Range: 19.2-28.8Vdc
Wiring	I/O Wiring： Max.1.5mm2(AWG 16)
Mounting Type	35mmDIN-Rail
Size	1151475mm
Weight	65g
Environment Specification
Operational Temperature	-35~70℃
Operational Humidity	5%~95% RH(No Condensation)
Protection Class	IP20
Input Parameters
Channel Number	2-channel encoder
LED Indicator	16 channel input LED indicator
Encoder signal type	Differential signal, 5V
Data frame length	10-40 bit
Position value length	Maximun of 32 bit
Position value format	Supports gray code or binary
Location value LSB/MSB	Settable
SSI encoder clock frequency	≤2MHz
DI turn-on voltage	Min.5Vdc to Max.28Vdc
DI turn-off voltage	Max.2.7Vdc
DI turn-on current	Max.5mA/channel@28V
DI input impedance	>10.0kΩ
DI input delay	OFF to ON: Max.3ms;ON to OFF: Max.2ms
DO output voltage	5V，range ±10%
DO output current	Max.500mA
DO output sink current	Max.5uA

Application scenarios:

FQA

Q：Encoder type?

A：SSI encoder input, 32-bit.

Q：Max clock frequency?

A：2MHz.

Q：Applications?

A：Shaft position monitoring, high-speed counting systems. ODOT Solutions

Certifications & Quality Assurance:

ODOT products comply with international industrial standards, including CE and RoHS, and undergo strict quality control to ensure long-term reliable operation in industrial environments.