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MMC-DSA2 Kollmorgen

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The Kollmorgen MMC-DSA2 is part of the MMC Standalone Smart Drives series and uses a 32-bit RISC CPU with numeric coprocessor running at 64 MHz. It supports two closed loop axes, features 1.3 MB of application memory, and operates at a nominal supply voltage of 24 VDC. The drive includes eight general DC inputs, seven DC outputs, and provides Ethernet connectivity with a maximum cable length of 50 meters.

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Product Description:

The MMC-DSA2 is a programmable standalone smart drive manufactured by Kollmorgen within the MMC Standalone Smart Drives series. Designed for small multi-axis machines and compact cells, it combines motion control, I/O processing, and network communication in one enclosure, eliminating the need for a separate PLC. By coordinating closed-loop servo axes and handling local sequence logic, the unit supports positioning, feeding, and light assembly tasks in industrial automation.

The controller uses a 32-bit RISC processor with a numeric coprocessor operating at 64 MHz, allowing it to perform trajectory calculations within deterministic time slots. Motion programs reside in 1.3 MB of application memory, while production data can be buffered in a 256 KB RAM disk without consuming flash write cycles. The controller supports 2 independently tunable closed-loop servo axes that share the processor. Additional storage includes 64 KB of user-variable space and a 2 MB flash disk for system files. Eight general-purpose DC inputs receive signals from connected sensors and control devices. An RS-232/RS-485 port provides serial communication with a host computer, operator interface, or other compatible equipment.

System power is supplied at 24 VDC, providing the operating voltage required by the controller and its field connections. The general-purpose DC inputs register an active state when the signal reaches the 15 VDC input threshold, helping prevent low-voltage signals from being interpreted as valid commands. Each of the seven general-purpose DC outputs can source up to 0.25 A per output, making them suitable for small relays, indicators, and similar loads. Integrated Ethernet supports 100Base-TX/10Base-T half-duplex communication over unshielded twisted-pair cable. Ethernet cable runs can extend up to 50 m for peer-to-peer status exchange or remote access. The user port operates at up to 115.2 Kbaud, and its combined RS-232/RS-485 electrical interface supports communication with legacy terminals while Ethernet handles higher-level network traffic.

Application Memory
1.3 MB
Closed Loop Axes
2
Cpu
32-bit RISC with numeric coprocessor
Ethernet Max Cable
50 m
Ethernet Standard
100Base-TX/10Base-T half duplex
Flash Disk
2 MB
General Dc Inputs
8
General Dc Outputs
7
Input Turn-on Voltage
15 VDC
Max Output Current
0.25 A/output
Nominal Supply Voltage
24 VDC
Processor Speed
64 MHz
Ramdisk Memory
256 KB
User Memory
64 KB
User Port Baud
115.2 Kbaud
User Port Interface
RS232/RS485

Frequently Asked Questions about MMC-DSA2:

Q: What is the available application memory on the MMC-DSA2?

A: The MMC-DSA2 features 1.3 MB of application memory for program storage and execution.

Q: How many closed loop axes can the MMC-DSA2 control?

A: This model supports control for two closed loop axes, allowing coordinated motion operations.

Q: What type of processor does the MMC-DSA2 use?

A: The MMC-DSA2 is powered by a 32-bit RISC processor equipped with a numeric coprocessor for efficient processing.

Q: What is the maximum Ethernet cable length supported by the MMC-DSA2?

A: The MMC-DSA2 supports Ethernet communication up to a maximum cable length of 50 meters.

Q: What is the nominal supply voltage required for the MMC-DSA2?

A: This smart drive operates on a nominal supply voltage of 24 VDC, which should be provided for proper functionality.


Internal Product Review

  • ‘‘The MMC-DSA2 is a Kollmorgen standalone smart drive with 2 closed-loop axes and a 64 MHz processor that feels well suited for coordinated motion tasks. A 32-bit RISC CPU with numeric coprocessor and 100Base-TX/10Base-T half-duplex Ethernet support give this unit responsive control and straightforward network integration. A 24 VDC nominal supply and 1.3 MB of application memory make this drive a strong choice for compact automation systems.’’

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