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Diagnostics Optimization CT MODBUS RTU Technical Data
456 E300 Design Guide
Issue Number: 1
Autotune 7 Motor number of poles / position feedback resolution set incorrectly
17
An Autotune 7 trip is initiated during a rotating autotune, if the number of motor poles, or the position feedback resolution
has been set-up incorrectly, where position feedback is being used.
Recommended actions:
• Check the number of motor poles set-up in Number Of Motor Poles (B05)
• Check the number of lines per revolution for feedback device in Drive Encoder Rotary Pulses Per Revolution (C03)
Autotune Stopped Autotune test stopped before completion
18
The drive was prevented from completing an autotune test, because either the Safe Torque Off (STO), Drive enable, Fast
disable input (if used) or run signal were removed.
Recommended actions:
• Check the Safe Torque Off (STO), Drive enable signal on Control terminal 31 T31 STO Input 01 State (F10) and the
Fast disable input if used) are active during the autotune.
• Check the run signal is active in T28 Digital Input 05 State (F07) during the autotune
Brk con 1 open Brake contact 1 open fault
72
Brake 1 contact feedback to the drive has been detected closed when it should be open, incorrect sequence, using the
brake contactor monitoring feature where enabled.
Recommended actions:
• Check control wiring connections from brake contact 1 to drive control terminal
• Check correct sequence and operation of brake contact 1 during brake operation (Default configuration, Brake Off,
Contact 1 closed = +24 V feedback, Brake ON, Contact 1 open = 0 V feedback)
• Disable brake contact monitoring with Brake Contact Monitoring Select (D11)
This is a delayed trip, where travel will complete (Elevator Software State (J03) = 0) and then the drive will trip. If a delayed
trip has been scheduled during travel (Elevator Software State (J03) >
0) then Global Warning (L04) = On (1) indicating
that there is a delayed trip scheduled to occur when travel completes.
Brk con 1 closd Brake contact 1 closed fault
73
Brake 1 contact feedback to the drive has been detected open when it should be closed, incorrect sequence, using the
brake contactor monitoring feature where enabled.
Recommended actions:
• Check control wiring connections from brake contact 1 to drive control terminal
• Check correct sequence and operation of brake contact 1 during brake operation Default configuration, Brake Off,
Contact 1 closed = +24 V feedback, Brake ON, Contact 1 open = 0 V feedback)
• Disable brake contact monitoring with Brake Contact Monitoring Select D11)
This is a delayed trip, where travel will complete (Elevator Software State (J03) = 0) and then the drive will trip. If a delayed
trip has been scheduled during travel (Elevator Software State (J03) >
0) then Global Warning (L04) = On (1) indicating
that there is a delayed trip scheduled to occur when travel completes.
Brk con 2 open Brake contact 2 open fault
74
Brake 2 contact feedback to the drive has been detected closed when it should be open, incorrect sequence, using the
brake contactor monitoring feature where enabled.
Recommended actions:
• Check control wiring connections from brake contact 2 to drive control terminal
• Check correct sequence and operation of brake contact 2 during brake operation Default configuration, Brake Off,
Contact 2 closed = +24 V feedback, Brake ON, Contact 2 open = 0 V feedback)
• Disable brake contact monitoring with Brake Contact Monitoring Select D11)
This is a delayed trip, where travel will complete (Elevator Software State (J03) = 0) and then the drive will trip. If a delayed
trip has been scheduled during travel (Elevator Software State (J03) >
0) then Global Warning (L04) = On (1) indicating
that there is a delayed trip scheduled to occur when travel completes.
Brk con 2 closd Brake contact 2 closed fault
75
Brake 2 contact feedback to the drive has been detected open when it should be closed, incorrect sequence, using the
brake contactor monitoring feature where enabled.
Recommended actions:
• Check control wiring connections from brake contact 2 to drive control terminal
• Check correct sequence and operation of brake contact 2 during brake operation Default configuration, Brake Off,
Contact 2 closed = +24 V feedback, Brake ON, Contact 2 open = 0 V feedback)
• Disable brake contact monitoring with Brake Contact Monitoring Select D11)
This is a delayed trip, where travel will complete (Elevator Software State (J03) = 0) and then the drive will trip. If a delayed
trip has been scheduled during travel (Elevator Software State (J03) >
0) then Global Warning (L04) = On (1) indicating
that there is a delayed trip scheduled to occur when travel completes.
Brk Ctrl Release Incorrect brake control sequence
68
The brake release control conditions following, (a) ramping torque producing current and (b) magnetization of the motor
were not completed within 6 s to allow the correct transition to start.
Recommended actions:
• Check motor torque ramp time in Motor Torque Ramp Time (D02)
• Check correct motor map settings
• Check Motor Magnetized Indication (D01)
• Check motor contactor control
• Check motor electrical connections
Trip Diagnosis
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