Hapter, Introduction to the oim – Rockwell Automation GV3000/SE Operator Interface Module (OIM) User Guide User Manual
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Introduction to the OIM
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HAPTER
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Introduction to the OIM
The Operator Interface Module (OIM) is a keypad and display that connects to 
Reliance GV3000/SE™ drives. It is compatible with version 6.0 and older versions of 
the GV3000/SE drive software. The OIM communicates serially to the Regulator 
board.
The OIM allows you to:
•
access and change drive parameters, which tune the drive, scale the inputs and 
outputs, program drive limits, and configure remote interfaces
•
operate the drive
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review and clear the faults
•
review active alarms
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monitor drive outputs such as motor speed and motor current
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The OIM has two operating modes: monitor and program. Monitor mode is the normal 
operating mode and allows you to view up to six drive outputs. Program mode allows 
you to access and change drive parameter settings.
Through the OIM, the drive can be programmed for either volts/hertz (V/Hz) or vector 
regulation. The type of regulation that is selected will determine which parameters you 
can access and which outputs are displayed in monitor mode. V/Hz regulation 
provides open-loop volts per hertz regulation, which is appropriate for general 
purpose applications. 
For vector regulation, you may select either flux vector control (FVC) or sensorless 
vector control (SVC). FVC uses the actual encoder value for speed feedback, and 
therefore requires an encoder mounted to the motor and connected to the drive. SVC 
is an extension of the FVC regulator. It provides performance close to FVC without 
using an encoder. Control is based on estimated speed feedback.
1.1
Differences Between the OIM and the Front Panel 
Keypad/Display
In most cases, the OIM performs the same functions as the keypad/display on the 
front panel of the GV3000/SE drive. Actions performed on the OIM are reflected in the 
front panel keypad/display. For example, if the auto/manual status or the reference is 
changed through the OIM, it is also changed on the front panel keypad/display.