Siemens 6ES7633-2SA02-0AD0 Complete Unit

This Siemens complete unit integrates a power supply, CPU, and basic I/O in one housing. The Siemens 6ES7633-2SA02-0AD0 offers a ready-to-use solution for small automation systems. Its all-in-one design reduces installation time and complexity. This unit suits standalone machine control and simple process applications. The Siemens 6ES7633-2SA02-0AD0 provides dependable performance for continuous industrial operation.

Physical Dimensions and Housing Specifications

The complete unit measures 310 mm in height and 220 mm in width. Its overall depth reaches 120 mm including all connectors and handles. This unit weighs approximately 4.5 kilograms for robust panel mounting. The housing features a rugged metal enclosure with forced ventilation. The Siemens 6ES7633-2SA02-0AD0 supports both rack and panel mounting options. A front cover protects the programming and communication interfaces.

Power Supply and Electrical Characteristics

The integrated power supply accepts 120 V AC or 230 V AC input voltages. The input frequency range covers 47 Hz to 63 Hz for global use. The unit provides 5 V DC at 8 A for logic circuits. A separate 24 V DC output delivers 1.5 A for field devices. The Siemens 6ES7633-2SA02-0AD0 includes an internal 1500 µF capacitor for energy storage. This capacitor provides a hold-up time of approximately 15 milliseconds. Efficiency reaches 87% under typical load conditions.

CPU and Memory Specifications

An integrated 16-bit microprocessor executes user programs with high speed. The processor operates at a clock frequency of 10 MHz. This unit includes 64 KB of RAM for user program and data storage. A separate 128 KB EPROM holds the operating system firmware. The Siemens 6ES7633-2SA02-0AD0 provides 32 KB of retentive memory for critical parameters. An integrated lithium battery maintains memory for up to 4 years.

I/O Configuration and Communication Ports

This complete unit provides 32 digital inputs for direct sensor connection. It includes 24 digital outputs for actuator control applications. Each output drives loads up to 0.5 A at 24 V DC. The unit offers one RS-232 port for programming device connection. A second RS-485 port supports operator panel and inter-controller communication. The Siemens 6ES7633-2SA02-0AD0 includes two analog inputs for process monitoring.

Detailed Specification Table

Parameter	Specification
Dimensions (H x W x D)	310 mm x 220 mm x 120 mm
Weight	Approx. 4.5 kg
Input Voltage	120/230 V AC (selectable)
Input Frequency	47 Hz to 63 Hz
5 V DC Output	8 A
24 V DC Output	1.5 A
Efficiency	87% (typical)
Energy Storage Capacitance	1500 µF
Hold-up Time	Approx. 15 ms
Processor Type	16-bit microprocessor
Clock Frequency	10 MHz
RAM Capacity	64 KB
EPROM Capacity	128 KB
Retentive Memory	32 KB
Battery Backup Life	4 years
Digital Inputs	32
Digital Outputs	24 (0.5 A @ 24 V DC)
Analog Inputs	2
Communication Ports	RS-232, RS-485

Application and Commissioning Guidelines

Mount this unit vertically in a control panel with adequate clearance. Ensure proper ventilation around the unit for heat dissipation. Connect field devices to the designated terminal blocks carefully. The Siemens 6ES7633-2SA02-0AD0 operates effectively between 0°C and 50°C. Select the correct input voltage using the selector switch before power-on. Download the user program via the RS-232 interface from a programming device. Monitor the front-panel LEDs for system status and fault indicators.