Product Description:

Bosch Rexroth Indramat designed the CLC-V02.3-FW for the CLC Motion Controllers series as a VME-bus master that occupies only one slot in the cabinet. Within that footprint, it supervises as many as 30 DDS 2.2 drives and exchanges setpoints and feedback over a pair of SERCOS fiber-optic ports arranged as one input and one output link. In an automation cell, the controller generates coordinated axis profiles and forwards them to each drive at selectable SERCOS cycle times of 1, 2, 4, 8, 16, 32, or 64 ms. Because it serves as the bus master, it coordinates the timing of motion data across the connected drive group. The single-slot format also leaves space for neighboring modules in dense VME racks.

The processing core is a 68020 microprocessor clocked at 25.0 MHz, and a separate 68882 math coprocessor performs floating-point calculations to shorten interpolation and kinematic routines. Program code resides in a 1 Mbyte flash EPROM, while fast variables are secured in a 32 Kbyte battery-backed SRAM so machine constants survive power loss. This memory arrangement separates permanent control software from retained operating data. The card has 12 onboard digital input channels, letting it read limit switches or probe triggers without extra I/O modules. It communicates with the host CPU through VME addressing ranges A32, A24, and A16, supports data widths D8, D16, and D32, and includes two RS-232C serial ports for diagnostics or HMI linkage. These serial interfaces can support terminal access or simple operator connections without additional communication hardware.

The unit has 4 transistorized output channels, and each channel can source up to 300 mA for direct control of contactors or indicator lamps. The output stage can switch small field devices directly when their current demand stays within the channel limit. Motion data shared with decentralized drives is buffered in a 2 Mbyte dual-port SRAM so the VME master and the SERCOS interface can access it concurrently. That shared memory supports steady data exchange between the rack controller and the fiber-optic drive network without interrupting cyclic motion updates. The mix of onboard I/O, serial maintenance ports, and full VME compatibility lets the controller integrate into existing racks without additional carriers or adapters.