Schneider Electric ALTIVAR 58 TRX Guía de instalación descargar pdf (Pagina 105)

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VVDED397047USR6/03 Chapter 3—Diagnostics and Troubleshooting

06/2003 Fault Codes and Messages

105

Ini

Attempting to download an

incompatible file from the keypad

display to the drive controller.

Incompatibility can be caused by

transferring to a drive controller with

dissimilar part numbers. Also,

incompatibility can occur when files are

created on a drive controller with new

firmware and then attached to a

controller with older firmware. The

error may appear after ERR7 is

displayed.

1. Ensure that the file being downloaded

was created for the correct drive

controller part.

2. Verify drive controller firmware.

Reconfigure the new features used in

the newer firmware. Like

configurations are transferable

independent of firmware revision.

Another option is to upgrade the

firmware by ordering part number

VX4A581U.

Cycle power on the drive controller.

LFF

LOSS OF 4-20 mA

Loss of 4–20 mA follower signal on AI2

input. See Table 29 on page 107.

1. Verify signal connections.

2. Check signal.

ObF

OVERBRAKING

Overvoltage or overcurrent due to

excessive braking or an overhauling

load. See Table 28 on page 106.

Increase deceleration time. Add a

dynamic braking option if necessary, or

verify that the dynamic braking option is

working properly.

OCF

OVERCURRENT

• Ramp too short.

• Inertia too high, or load too large

• Mechanical blockage.

1. Check the parameter settings.

2. Check the sizing of the drive controller,

motor, and load.

3. Remove all power. With the drive

controller disconnected, check for

mechanical blockage.

OHF

DRIVE OVERHEATING

Heatsink temperature too high.

Check the motor load, fan, and the

ambient temperature around the drive

controller. Wait for the drive controller to

cool down before resetting.

OLF

MOTOR OVERLOAD

• If the thermal trip setting meets or

exceeds 118% of the normal

thermal state, thermal trip is due to

prolonged overload or output

phase failure.

• Motor power rating is too low for

the application.

• Check the setting of Thermal Current

(

ItH, see page 32) and compare it

with motor I

n

(nameplate current

rating). Check the load and compare it

with operating speed. Check the

braking conditions (possibility of

single-phase operation). Wait

approximately seven minutes before

resetting.

• Verify that the motor and drive

controller selections are correct for

application.

OPF

MOTOR PHASE LOSS

• Loss of a phase on the output of

the drive controller.

• Drive controller oversized for

motor.

1. Check the wiring to the motor

(Procedure 3 on page 102).

2. Disable OPL and provide external

overload protection.

OSF

OVERVOLTAGE

Supply too high. See Table 28.

1. Check the input line voltage

(Procedure 2 on page 101).

2. Reset the drive controller.

Table 27: Fault Codes and Messages (continued)

Fault/Message Probable Causes Corrective Actions

1 2 ... 100 101 102 103 104 105 106 107 108 109 110 ... 125 126

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