Trips, Sub-Trip Numbers - Emerson Unidrive M400 User Manual

Safety Product Mechanical
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13.4

Trips, Sub-trip numbers

Table 13-2 Trip indications
Trip Diagnosis
An Input 1 Loss Analog input 1 current loss
The An Input 1 Loss trip indicates that a current loss was detected in current mode on Analog input 1 (Terminal 2). In 4-20
mA and 20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommended actions:
• Check control wiring is correct
28
• Check control wiring is undamaged
• Check the Analog Input 1 Mode (07.007)
• Current signal is present and greater than 3 mA
An Input 1 OI Analog input 1 over-current
189 Current input on analog input 1 exceeds 24mA.
Analog input 2 current loss
An Input 2 Loss
The An Input 2 Loss trip indicates that a current loss was detected in current mode on Analog input 2 (Terminal 5). In 4-20
mA and 20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommend actions:
29
• Check control wiring is correct
• Check control wiring is undamaged
• Check the Analog Input 2 Mode (07.011)
• Current signal is present and greater than 3 mA
Analog input 2 over-current
An Input 2 OI
190 Current input on analog input 2 exceeds 24 mA.
Autotune Measured inertia has exceeded the parameter range
The drive has tripped during a rotating autotune or mechanical load measurement test. The cause of the trip can be
identified from the associated sub-trip number.
Sub-trip
13
Recommended actions:
• Check motor cable wiring is correct
Autotune Stopped Autotune test stopped before completion
The drive was prevented from completing an autotune test, because either the drive enable or the drive run were removed.
18 Recommended actions:
• Check the drive enable signal (Terminal 31 & 34) were active during the autotune
Brake R Too Hot
Braking resistor overload timed out (I
The Brake R Too Hot trip indicates that braking resistor overload has timed out. The value in Braking Resistor Thermal
Accumulator (10.039) is calculated using Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant
(10.031) and Braking Resistor Resistance (10.061). The It.br trip is initiated when the Braking Resistor Thermal
Accumulator (10.039) reaches 100 %.
19
Recommended actions:
• Ensure the values entered in Pr 10.030, Pr 10.031 and Pr 10.061 are correct
• If an external thermal protection device is being used and the braking resistor software overload protection is not
required, set Pr 10.030, Pr 10.031 or Pr 10.061 to 0 to disable the trip.
Card Access NV Media Card Write fail
The Card Access trip indicates that the drive was unable to access the NV Media Card. If the trip occurs during the data
transfer to the card then the file being written may be corrupted. If the trip occurs when the data being transferred to the
drive then the data transfer may be incomplete. If a parameter file is transferred to the drive and this trip occurs during the
transfer, the parameters are not saved to non-volatile memory, and so the original parameters can be restored by powering
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the drive down and up again.
Recommended actions:
• Check NV Media Card is installed / located correctly
• Replace the NV Media Card
Card Boot The Menu 0 parameter modification cannot be saved to the NV Media Card
Menu 0 changes are automatically saved on exiting edit mode.
The Card Boot trip will occur if a write to a Menu 0 parameter has been initiated via the keypad by exiting edit mode
and Pr 11.042 is set for auto or boot mode, but the necessary boot file has not been created on the NV Media Card to take
the new parameter value. This occurs when Pr 11.042 is changed to Auto (3) or Boot (4) mode, but the drive is not
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subsequently reset.
Recommended actions:
• Ensure that Pr 11.042 is correctly set, and then reset the drive to create the necessary file on the NV Media Card
• Re-attempt the parameter write to the Menu 0 parameter
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Electrical Getting Basic Running
installation started parameters the motor
1 Measured inertia has exceeded the parameter range during a mechanical load measurement
NV Media Card Onboard
Optimization
Operation
Reason
2
t)
Advanced
Technical data Diagnostics
PLC parameters
Unidrive M400 User Guide
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Issue Number: 2