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GE MM300 Instruction Manual Page 188

Motor management system low voltage motor protection and control.
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FLEXLOGIC™ OVERVIEW
7–4
Control operands: undervoltage restart
UVR...................................................................Asserted when a UV Restart active condition exists.
Fixed operands
Off .....................................................................The operand is always off (not asserted). This may be used as a
On......................................................................The operand is always on (asserted). This may be used as a
Input/output operands: virtual outputs
Contactor A Relay .....................................Expected by several control elements to be asserted to close
Contactor B Relay .....................................Expected by several control elements to be asserted to close
Autotransformer starter (open and closed transition)
Contactor C Relay .....................................Expected by Autotransformer control elements to be asserted
Autotr Open Tran.......................................Autotransformer Open Transition Starter is selected.
Autotr Closed Tran....................................Autotransformer Closed Transition Starter is selected.
Starter
Forward..........................................................Asserted when "Forward" is appended to the displayed basic
Pre-Contactor..............................................Asserted during a pre-contactor warning.
Reverse...........................................................Asserted when "Reverse" is appended to the displayed basic
Input/Output Operands
VO1...................................................................Asserted when virtual output 1 is on.
VO2 to VO32.................................................As above; asserted when virtual outputs 2 through 20 are on,
Protection operands: acceleration protection
Acceleration Alarm ...................................Asserted when an acceleration alarm condition exists.
Acceleration Trip........................................Asserted when an acceleration trip condition exists.
Protection operands: auxiliary undervoltage
Aux U/V Alarm.............................................Asserted when an auxiliary undervoltage alarm condition
Low Aux Voltage Inhibit..........................Asserted when an auxiliary undervoltage condition inhibits
Aux U/V Trip..................................................Asserted when an auxiliary undervoltage trip condition exists.
Protection operands: current unbalance
Unbalance Alarm.......................................Asserted when a current unbalance alarm condition exists.
Unbalance Trip ...........................................Asserted when a current unbalance trip condition exists.
Protection operands: fuse failure
Fuse Fail.........................................................Asserted when a fuse fail condition inhibits starting.
Fuse Fail Alarm ...........................................Asserted when a fuse failure alarm condition exists.
Fuse Fail Trip................................................Asserted when a fuse failure trip condition exists.
Protection operands: ground fault
Ground Fault Alarm..................................Asserted when a ground fault alarm condition exists.
Ground Fault Trip.......................................Asserted when a ground fault trip condition exists.
placeholder or test value.
placeholder or test value.
contactor A.
contactor B.
to close contactor 2S.
status.
status.
respectively.
exists.
starting.
MM300 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL
CHAPTER 7: FLEXLOGIC™

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