About the 890SD-4-0145F-B-1F-A-US
The 890SD/4/0145F/B/1F/A/US is a 100 HP, 460 V Standalone Drive from Parker's AC890 series. This series is a set of variable frequency drives that are designed to control position and speed of AC motors. The AC890 series has a number of modes the drives can operate in, which are:
- sensorless vector control
- open-loop (vector/frequency) control
- PMAC servo control
- closed-loop vector control
The 890SD/4/0145F/B/1F/A/US also has torque and speed signal outputs, along with a braking switch fitted into the design of the unit. There is an external braking resistor that can be added to this unit.
Another safety feature of the 890SD/4/0145F/B/1F/A/US is the Safe Torque Off function. This prevents unwanted and unexpected motor start-ups. There are two independent STO channels in the 890SD/4/0145F/B/1F/A/US. This is by design to ensure that if one faults, the other will still work.