Modbus tcp, 2 alarm word and warning word – GE Industrial Solutions AF-600 FP OPCMBTCP Modbus TCP Option User Manual

Page 49

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7.1.2 Alarm Word and Warning Word

Alarm word and warning word are shown in the display in Hex format. If there is more than one warning or alarm, a sum of all warnings or alarms will be shown.
Warning word and alarm word are displayed in par. DR-90 to DR-95. For more information on the individual alarms and warnings, please refer to: AF-650 GP/
AF-600 FP Design Guide.

NB!
Please note that the availability of the individual alarms and warnings are dependent on the drive type: AF-600 FP/AF-650 GP series.

Warning and Alarm Messages
There is a clear distinction between alarms and warnings. In the event of an alarm, the frequency converter will enter a fault condition. After the cause for the
alarm has been cleared, the master must acknowledge the alarm message in order to start operation of the frequency converter again. A warning, on the other
hand, may appear when a warning condition arises, then disappear when conditions return to normal without interfering with the process.

Warnings
All warnings within the frequency converter are represented by a single bit within a warning word. A warning word is always an action parameter. Bit status FALSE
[0] means no warning, while bit status TRUE [1] means warning. Each bit status has a corresponding text string message. In addition to the warning word message
the master will also be notified via a change in the status word.

Bit (Hex)

Alarm word 2 (Par DR-91)

00000001

Service Trip, Read/Write

00000002

Reserved

00000004

Service Trip, Typecode/Sparepart

00000008

Reserved

00000010

Reserved

00000020

No Flow

00000040

Dry Pump

00000080

End of Curve

00000100

Broken Belt

00000200

Discharge high

00000400

Start failed

00000800

Speed limit

00001000

Reserved

00002000

Reserved

00004000

Reserved

00008000

Reserved

00010000

Reserved

00020000

KTY error

00040000

Fans error

00080000

ECB error

00100000

Reserved

00200000

Reserved

00400000

Reserved

00800000

Reserved

01000000

Reserved

02000000

Reserved

04000000

Reserved

08000000

Reserved

10000000

Reserved

20000000

Reserved

40000000

PTC thermistor

80000000

Dangerous failure

Bit (Hex)

Warning word (Par. DR-92)

00000001

Brake check

00000002

Power card over temperature

00000004

Earth fault

00000008

Control card over temperature

00000010

Control word timeout

00000020

Over current

00000040

Torque limit

00000080

Motor thermistor over temp.

00000100

Motor Electronic Thermal Overload
over temperature

00000200

Inverter overloaded

00000400

DC link under voltage

00000800

DC link over voltage

00001000

DC link voltage low

00002000

DC link voltage high

00004000

Mains phase loss

00008000

No motor

00010000

Live zero error

00020000

10V low

00040000

Brake resistor power limit

00080000

Brake resistor short circuit

00100000

Brake chopper fault

00200000

Speed limit

00400000

Network comm. fault

00800000

24V supply fault

01000000

Mains failure

02000000

Current limit

04000000

Low temperature

08000000

Voltage limit

10000000

Encoder loss

20000000

Output frequency limit

40000000

Safe stop 1. Only available in
AF-650 GP

80000000

Extended status word

1. Only available in AF-650 GP

Modbus TCP

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