Schneider Electric Altivar 58 VW3-A58101 Manual de usuario descargar pdf (Pagina 93)

VVDED397047US R8/01 ALTIVAR



58 Keypad Display

08/01 Chapter 3 — Diagnostics and Troubleshooting

ILF

INTERNAL COMM.

FAULT

Communication fault between the

control board and the option card.

Perform Bus Voltage Measurement procedure

(Procedure 1 on page 87). Check the connection

between the option card and the control board. If the

drive controller has a GPO (General Purpose Option

Card, part number VW3A58253U) installed, see

instruction bulletin 30072-450-03 for troubleshooting

instructions.

InF

INTERNAL FAULT

1. Internal fault.

2. Internal connection fault.

Perform Bus Voltage Measurement procedure

(Procedure 1 on page 87), then check internal

connections.

Ini

Attempting to download an incompatible

file from the keypad display to the drive

controller. Incompatibility can be caused

by dissimilar drive controller 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 that does not recognize the

new features. The error may appear

after ERR7 is dislayed.

1.Ensure 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 27

1. Verify signal connections.

2. Check signal.

NST

Freewheel Stop

The logic input assigned to NST

(Freewheel stop/Run permissive) is

open.

The drive controller will not run until the logic input

assigned to Freewheel stop / Run permissive is

closed.

ObF

OVERBRAKING

Overvoltage or overcurrent due to

excessive braking or an overhauling

load. See Table 26.

Increase deceleration time. Add dynamic braking

option if necessary, or verify the dynamic braking

option is working properly.

OCF

OVERCURRENT

1. Ramp too short.

2. Inertia too high, or load too large

3. Mechanical blockage.

1. Check the parameter adjustments

2. Check the sizing of the drive controller, motor, and

load.

3. Remove all power. With drive controller

disconnected, check for mechanical blockage.

OHF

DRIVE OVERHEATING

Heatsink temperature too high. Check motor load, fan, and ambient temperature

around drive controller. Wait for drive controller to cool

down before resetting.

OLF

MOTOR OVERLOAD

1. If thermal trip setting meets or

exceeds 118% of the normal thermal

state, thermal trip is due to prolonged

overload or output phase failure.

2. Motor power rating too low for

application.

1. Check setting of Thermal Current (

ItH, see

page 29) and compare with motor I

(nameplate

current rating). Check load and compare with

operating speed. Check braking conditions (possibility

of single-phase operation). Wait approximately seven

minutes before resetting.

2. Verify that motor and drive controller selection are

correct for application.

Table 25: Fault Codes and Messages (Continued)

Fault/Message Probable Causes Corrective Actions

1 2 ... 88 89 90 91 92 93 94 95 96 97 98 ... 111 112

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