Product Description:

The 1070085613-GA1 is a drive module produced by Bosch Rexroth Indramat for the DMA Servo Drive Modules series. Built for multi-axis controllers, it slots into the RMA/DM30 backplane and is only 50 mm wide, allowing dense mounting inside control cabinets. One integrated fan provides forced-air cooling so the module can dissipate switching losses without external blowers. By converting DC-link energy into controlled phase currents, the unit drives synchronous or induction motors used in assembly lines, packaging systems, and other automated machinery. Its narrow format helps multiple axes fit into a shared cabinet while supporting coordinated motion control.

The drive delivers a rated output of 18 Arms at a 4 kHz switching frequency and 12 Arms at 8 kHz; these values indicate the continuous motor current available before derating is required. When short-term peaks are needed, the current can rise to 35 Arms at 4 kHz or 32 Arms at 8 kHz, giving additional acceleration capability during indexing moves and other brief load changes. Command and diagnostic data are exchanged through the SERCOS interface, while rotor position feedback is accepted through a resolver interface for closed-loop motor control. The control electronics draw 1.23 A from the 24 V cabinet supply, so the auxiliary supply must support both logic operation and communication functions.

The module has an IP20 protection rating, so it requires installation inside an enclosure. It is intended for an ambient range of 0 to +45 °C, and cabinet airflow must keep internal heat within that window during operation. Cabinet heat rise is limited because the device contributes a maximum of 180 W of power loss during full-load operation. Above 45 °C, the output drops by 0.46 A per kelvin at 4 kHz and by 0.35 A per kelvin at 8 kHz to protect the power section from excess thermal stress. With a height of 521 mm, the unit aligns mechanically with other DMA sections in the same cabinet layout.