SIEMENS CU230P-2 6SL3243-0BB30-1HA2 BOP-2 6SL3255-0AA00-4CA1 Product Description

Overview

SIEMENS CU230P-2 6SL3243-0BB30-1HA2 is a SINAMICS G120 CU230P-2 HVAC control unit, paired here with the BOP-2 6SL3255-0AA00-4CA1 Basic Operator Panel. The CU230P-2 HVAC control unit is the drive controller for SINAMICS G120 modular converters in pumps, fans, compressors, water systems and building automation applications. It provides onboard communication, digital and analog I/O, PID and pump-control functions, and interfaces to the compatible G120 power module. The BOP-2 panel mounts directly on the drive or in a control cabinet door to support local commissioning, parameter entry, status monitoring and fault diagnosis. Together, the unit and panel form a replacement drive control and operator interface set for existing SINAMICS G120 HVAC installations.

Features

CU230P-2 HVAC, order number 6SL3243-0BB30-1HA2, supports RS485 / USS, Modbus RTU and BACnet MS/TP communication. Its I/O configuration comprises 6 digital inputs, 3 digital outputs, 4 analog inputs and 2 analog outputs, plus one motor temperature sensor input. The control unit provides two PSU outputs, 10 V DC and 24 V DC, one 24 V DC PSU input, and USB and MMC interfaces. Degree of protection for the control unit is IP20. The CU230P-2 series is specialized for pumps, fans, compressors, water and buildings, with free function blocks, four PID controllers, pump staging, hibernation, essential service mode and two-zone control functions according to the Siemens selection data.

BOP-2, order number 6SL3255-0AA00-4CA1, is the SINAMICS G120 Basic Operator Panel. It provides a two-line monochrome LCD and operator keys for local drive operation, parameter setting, monitoring and alarm or fault diagnosis. The panel can be mounted directly on the inverter; direct mounting protection is IP20. With the appropriate door mounting kit, it can be installed in a control cabinet door, achieving IP55 / UL Type 12 enclosure protection. The BOP-2 is compatible with supported SINAMICS G-series control units, including CU230P-2, CU240B-2, CU240E-2, CU250S-2 and G120C drives as listed in Siemens compatibility documentation.

Specs

Control unit brand: SIEMENSControl unit family: SINAMICS G120Control unit model: CU230P-2 HVACControl unit order number: 6SL3243-0BB30-1HA2Control unit communication: RS485 / USS, Modbus RTU, BACnet MS/TPDigital inputs: 6Digital outputs: 3Analog inputs: 4Analog outputs: 2Motor temperature sensor input: 1PSU outputs: 10 V DC, 24 V DCPSU input: 24 V DCControl unit interfaces: USB, MMCControl unit protection: IP20Control unit functions: Free function blocks, 4 PID controllers, pump staging, hibernation, essential service mode, two-zone control Operator panel family: BOP-2 Basic Operator PanelOperator panel order number: 6SL3255-0AA00-4CA1Operator panel display: Two-line monochrome LCD Operator panel mounting: Direct on inverter, or cabinet door with mounting kit Operator panel direct mounting protection: IP20Operator panel door-mounted protection: IP55, UL Type 12Operator panel weight: Approximately 0.14 kgOperator panel compatibility: Supported SINAMICS G120 and G120C control units per Siemens documentation Product status: Siemens SINAMICS G120 replacement control unit and operator panel set for existing drive installations

Principle

The CU230P-2 HVAC control unit connects to a compatible SINAMICS G120 power module and processes drive commands from fieldbus communication, digital inputs, analog inputs or the local operator panel. It executes the selected drive control, PID, pump staging or building automation function, calculates motor output commands, and exchanges setpoints, actual values, status words and fault messages with the upper-level PLC, building controller or automation system. The onboard analog and digital terminals connect pushbuttons, sensors, pressure or temperature transducers, valve or contactor signals and motor temperature feedback.

The BOP-2 panel connects to the control unit for local human-machine interface operation. It displays drive status, current process or motor values, parameters and fault alarms, while its keys allow commissioning, parameter editing, start and stop control, or local monitoring without requiring an engineering PC. Door mounting places the panel at the cabinet exterior for operator access while retaining enclosure protection. Replacement should match the original control-unit version, communication protocol, I/O wiring, panel compatibility, firmware version and parameter backup before installation.

Applications

CU230P-2 HVAC with BOP-2 is used in variable-speed drive applications for HVAC, building management, water and wastewater, pumps, fans, blowers, compressors, circulation pumps, booster stations, heating and ventilation, air handling, cooling towers, irrigation, industrial process loops and general plant motor control. The control unit's PID, pump staging and BACnet or Modbus communication fit building automation and water-system supervision, while the BOP-2 supports local commissioning and maintenance at the drive or cabinet. In existing SINAMICS G120 installations originally equipped with this CU230P-2 control unit and BOP-2 panel, the set serves as a direct replacement drive controller and operator interface spare matched to the original power module, wiring, network and parameter configuration.