Emerson E300 Series Design Manual page 472

Safety Product Mechanical
information information installation
Trip
Temp Feedback Internal thermistor has failed
This trip indicates a fault with a thermistor in the drive (i.e. open circuit or short circuit). The thermistor location can be
identified by the sub-trip number:
Source
Control
board
218
Power
system
Power
system
Recommended actions:
• Hardware fault - contact the supplier of the drive.
Th Brake Res Brake resistor over temperature
The Th Brake Res is initiated, If hardware based braking resistor thermal monitoring is connected and the resistor
overheats. If the braking resistor is not used then this trip must be disabled with bit 3 of Action On Trip Detection to prevent
this trip.
10 Recommended actions:
• Check braking resistor value is greater than or equal to the minimum resistance value for the drive
• Check brake resistor wiring
• Check braking resistor insulation
Th Short Circuit Motor thermistor short circuit
The Th Short Circuit trip indicates that the motor thermistor connected to the drive is short circuit or low impedance. The
location of the trip can be identified by the sub-trip number.
Sub-trip
25
Recommended actions:
• Check thermistor control connection at drive
• Check thermistor wiring, continuity and signs of damage
• Replace motor / motor thermistor
Motor thermistor over-temperature
Thermistor
The Thermistor trip indicates that the motor thermistor connected to the drive has indicated a motor over temperature. The
location of the trip can be identified by the sub-trip number
Sub-trip
Recommended actions:
24
• Check motor thermistor wiring connections and continuity
• Check motor temperature
• Check motor ventilation
• Provide additional forced cooling
• Replace motor / motor thermistor
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) >
that there is a delayed trip scheduled to occur when travel completes.
User 24V User 24 V supply is not present on control terminals 1 (0 V) and 2 (24 V)
A User 24 V trip is initiated, if User Supply Select (O10) is set to 1 Low Under Voltage Threshold Select (O13) = 1 and no
user 24 V supply is present on Control Terminals 1 and 2 of the drive.
91
Recommended actions:
• Ensure user + 24 V supply is present and connected to Control Terminals 1 (0 V) and 2 (24 V) of the drive.
• Ensure user + 24 V supply meets the specification of the + 24 V user input on the drive
User Save User Save error / not completed
The User Save trip indicates that an error has been detected in the user save parameters saved in non-volatile memory.
For example
... following a user save command, the power to the drive was removed as the user parameters were being saved.
36
Recommended actions:
• Perform a user save in Pr mm00 to ensure that the trip doesn't occur the next time the drive is powered up.
• Ensure that the drive has enough time to complete the save before removing the power to the drive.
472
Electrical Getting
User Menu A Commissioning
installation started
xx
00
01
01
1 The resistance of the thermistor connected to the drive P1 position feedback interface is less than 50 Ω.
The resistance of the thermistor connected to analog input 3 is less than 50 Ω.
2
1 Trip initiated from thermistor connected to P1 position feedback interface
2 Trip initiated from thermistor connected to analog input 3
Advanced
Parameters
Diagnosis
y
01: Control board thermistor 1
00 02: Control board thermistor 2
03: I/O board thermistor
Zero for temperature feedback provided via power system comms.
0
21, 22 and 23 for direct ELV temperature feedback.
Rectifier
Always zero
number
Reason
Reason
Diagnostics Optimization CT MODBUS RTU Technical Data
zz
0) then Global Warning (L04) = On (1) indicating
E300 Design Guide
Issue Number: 1