SPX Cooling Technologies CS4000 manual Servo Amplifier, Device Control Module

CS4000 Mini Controller with Ethernet

Servo Amplifier

The servo amplifier is a three-phase, brushless DC motor controller that provides electrical power to the nutrunner motor. It receives control signals from the Device Control Module (DCM). Based on the state of these inputs, the servo amplifier energizes the motor windings to rotate the motor.

The servo amplifier serves as a closed-loop speed controller. It modulates the motor winding currents in order to maintain a constant motor speed despite changes in load. Additionally, the servo amplifier can stop the motor quickly by way of dynamic braking. The servo amplifier boards are paired with the DCM board and are housed inside the TCM.

A 20A, 250V servo amplifier fuse (part number 13-10-0700) is located on the first servo amplifier board.

Device Control Module

The Device Control Module (DCM) is an electronic circuit board that contains powerful 80186EA processor. It is paired with the servo amplifier inside the TCM. The DCM is the brain of the CS4000 Controller with Ethernet. It receives signals from the nutrunner control switches, the set point inputs, the nutrunner torque sensor, and remote control inputs and generates the appropriate outputs to the servo amplifier control inputs, the status output relays, and the nutrunner status LEDs. The DCM has plug-in electrical connections. It is easy to remove and replace.

A 3V lithium battery is located on the DCM board. You must remove the DCM board from the TCM in order to replace this battery. A generic 3V lithium battery (Duracell DL 2450, Sanyo

CR 2450, or similar) can be used.

3V Lithium Battery + side up

Figure 3-7. DCM Board and DCM Battery Location

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