SiemensSimodrive 611 Closed-Loop Control Module, Current and Speed Loop Regulator Card, Drive Bus Interface

Product Description

What this part is

A Siemens Simodrive 611 closed-loop control module: the regulator electronics that plug into the front of a Simodrive 611 power module. It closes the current and speed control loops, handles motor and encoder evaluation, applies the drive’s protection functions and takes its setpoints from the numerical control over the drive bus. The numbers 6SN1123-1AA00-0CA0 and 6SN1118-0AD11-0AA0 also appear on this unit and are recorded here as cross-references for anyone matching markings.

A closed-loop control module is the brain, not the muscle. It contains no power semiconductors, has no motor output terminals, and cannot drive a motor on its own. It must be fitted to a Simodrive 611 power module, which in turn hangs off a DC link fed by an infeed / line supply module.

Decoding the order code

6SN1: Siemens Simodrive 611 drive system. 6SN113x: closed-loop control module (regulator card) within that system. -1AD11: the control module variant, interface and feedback configuration. -0CA0: version / execution suffix.

Published specifications

Type: closed-loop control module (regulator card) for Simodrive 611. System: Siemens Simodrive 611. Function: current and speed loop control, motor and encoder evaluation, drive-bus setpoint interface, overcurrent / overvoltage / thermal protection. Order code: 6SN1130-1AD11-0CA0. Also marked: 6SN1123-1AA00-0CA0, 6SN1118-0AD11-0AA0. Format: plug-on control module for a Simodrive 611 power module. Condition note: broken plastics, cosmetic only.

What these specs mean in practice

The control module carries the drive’s identity. Different 6SN113x variants expect different encoder types and different bus interfaces, so a card that seats correctly can still refuse to run a given motor. The analog and digital branches of Simodrive 611 are not interchangeable at the control module.

Replacing a control module means re-entering or reloading the drive machine data. A physically correct card fitted with default data will produce runaway or oscillation on first enable.

Quantity and configuration

One closed-loop control module.

What is not included

Control module only. No power module or inverter stage. No infeed, line supply or I/R module, no DC link bars. No motor, motor power cable, encoder or feedback cable. No connector kits, terminal blocks or drive bus cables. No option or terminal expansion cards. No braking / pulsed resistor. No 24 V control supply, no mounting hardware. No drive machine data, software, licence or documentation.

Interchange guidance

6SN1130-1AD11-0CA0 and 6SN11301AD110CA0 are the same order code. Other 6SN1130 and 6SN1118 control modules are related cards with different feedback and bus configurations — related options, not drop-in substitutes. 6SN1123 numbers are power modules, a different tier of hardware entirely. Simodrive 611 control modules do not fit Simodrive 610 (6SC6) racks and have no cross-brand equivalent.