Siemens YSU C32353ADDAGS C98043 PC Board
This Siemens printed circuit board (PCB) carries multiple part identifiers: YSU/C32353ADDAGS, C98043-A7002-L1-13, and C98040-A7002-C1-6. It is a control board originally used in Siemens SIMODRIVE or SIMOVERT drive systems and other industrial automation equipment. The board serves as a logic and interface module between the main controller and power electronics.
Component and Layout
The board measures approximately 180 mm x 130 mm and is fabricated on 2.0 mm FR-4 with 2 oz copper traces. Key components: a 16/32-bit Infineon C167CR microcontroller (40 MHz), 512 KB flash memory (Siemens PSD813F1), 128 KB SRAM, and a Xilinx CPLD (XC95144) for glue logic. There are 5 optocoupler arrays for galvanic isolation of I/O lines. The board has 4 multi-turn trim potentiometers for calibration of analog circuits.
Interfaces and Connectors
1 x 50-pin header for ribbon cable to power stage.
1 x 26-pin header for encoder feedback (TTL/HTL).
1 x 9-pin D-sub for RS-232 (service/programming).
2 x 6-pin headers for digital I/O (24V, optically isolated).
1 x 4-pin terminal for +24V supply and ground.
Edge connectors: one 96-pin DIN 41612 (type C) for backplane bus (likely PROFIBUS).
Power Requirements
The board requires +5V DC (1.2 A) and ±15V DC (0.2 A each) from an external supply. A built-in linear regulator generates the 3.3V for the microcontroller. Onboard LED indicators: PWR (green), RUN (yellow), ERR (red), and BUS (green).
Firmware and Function
The board stores drive parameters and firmware in the flash memory. It handles speed and torque setpoints, monitors temperature and current limits, and communicates with the higher-level automation PLC via PROFIBUS DP or USS protocol. The C98043-A7002-L1-13 identifier refers to the firmware variant (for asynchronous motor control).
Environmental and Physical
Operating temperature: 0 to 55°C; storage: -25 to 70°C. Humidity: 10% to 90% non-condensing. The board is coated with a protective lacquer (conformal coating) to resist dust and moisture. Vibration resistance: 1 g (10–150 Hz). Weight: 0.3 kg.
Compatibility
This board is a direct replacement for Siemens part numbers: 6SC9830-0A... and 6SE7031... It is used in SIMOVERT MASTERDRIVES (6SE70 series) and SIMODRIVE 611 (6SN1118). It can be installed in control cabinets with appropriate cooling.
Repair and Spare Use
This PCB is intended as a spare part for legacy drive systems. Before installation, verify that the firmware version matches the drive’s requirements. The board has no user-serviceable components. Static-sensitive; handle with ESD precautions.
Ordering Documentation
Part numbers: YSU/C32353ADDAGS (Siemens ordering code), C98043-A7002-L1-13, and C98040-A7002-C1-6. Manual: Siemens MASTERDRIVES Control Board Manual (6SE7087-6XX).
