Product Description:

Bosch Rexroth Indramat manufactures the CLC-D03.1M-FW, a control card in the CLC Motion Controllers series. Installed in modular drive racks, the board supervises axis movement by executing compiled motion programs and relaying setpoint values to servo amplifiers. Its role is to close the position loop at the controller level, enabling coordinated interpolation, homing, and fault monitoring tasks required for packaging machines, transfer lines, and other computer-controlled production equipment. The unit interfaces with both SERCOS fiber rings and conventional serial links to fit mixed network topologies.

Processing is handled by a Motorola 68EC020 CPU clocked at 25.0 MHz. A dedicated 68882 math coprocessor accelerates floating-point calculations used in kinematic transformations and spline interpolation. Program variables and system parameters reside in 512 Kbyte of battery-backed SRAM, and two EPROM sockets are provided for permanent code storage. Stable logic operation is maintained when the controller receives a regulated +5 Vdc supply, and undervoltage events trigger immediate error signaling to the connected drive system.

External communication is managed by two serial ports. Port A transmits and receives at up to 38400 baud, while Port B is capped at 9600 baud, permitting separate operator interface and service channels. A single SERCOS input and a single SERCOS output couple the board to fiber-optic drive loops for deterministic real-time data exchange. Nonvolatile program retention comes from an onboard CR2477N manganese-dioxide lithium battery rated at 0.9 Ah and 3 V, which also supports timestamp maintenance during power loss. When the EPROM sockets are fitted, the device can hold 1 Mbyte of executable code, and overall current draw stays within 800 mA, allowing the card to share a common low-voltage backplane without overloading the supply rail.