Inverter (Present On Variable Speed Machines) - Access RPSP Installation Manual

Installation Manual – RPSP

5.9 Inverter (present on variable speed machines)

This component is a frequency converter for asynchronous three-phase motors that manages the
acceleration and deceleration ramps.
Warning! The machine leaves the factory pre-configured. Do not modify inverter configurations as
doing so may cause risk to persons.
When the device is powered, the power components and some control components are connected
to the power supply line and touching them is extremely dangerous. The cover must remain closed.
In general, power must be disconnected before performing any operations on electrical or
mechanical parts.
After the ALTIVAR inverter has been switched off and the display is completely off, wait 15 minutes
to work on devices safely. These 15 minutes are required to discharge the capacitor
ALTIVAR 12 DIAGNOSTICS AND TROUBLESHOOTING
The messages displayed on the ALTIVAR12 inverter display listed in the table below block the inverter. The
cause of the displayed defect must be eliminated before resetting the inverter. It is possible to reset the
inverter by disconnecting and subsequently repowering.
CODE ON
DISPLAY
----
CFF CONFIGURATION DEFECT
CFI INVALID CONFIGURATION
CrF 1
CURRENT MEASUREMENT
InF 9
INTERNAL TEMPERATURE
InF b
InF E
ObF
OCF
OHF VARIATOR OVERHEATING
OLC OVERLOADING CURRENT
OLF
OPF 1
OPF 2
OSF
SCF 1 MOTOR SHORT-CIRCUIT
SCF 3 SHORT-CIRCUIT TO EARTH
SCF 4
SCF 5
t ┘F
USF
DESCRIPTION
FIRMWARE PROBLEM
LOAD CIRCUIT FAULT
ERROR
SENSOR FAULT
CPU ANOMALY
OVERBRAKE
OVERCURRENT
MOTOR OVERLOADING
OUTPUT PHASE 1 LOSS
OUTPUT PHASE 3 LOSS
OVERVOLTAGE
IGBT SHORT
LOAD SHORT-CIRCUIT
IGBT HEATING
UNDERVOLTAGE
Table 3 - ALTIVAR 12 (ATV12) Diagnostics
REPLACEMENT

RERUN INVERTER CONFIGURATION AS DESCRIBED IN THE NEXT
PARAGRAPH

SWITCH THE VARIATOR OFF AND BACK ON

CHECK CONNECTIONS

CHECK NETWORK POWER STABILITY

REPLACE THE PREVIOUS POINTS IF INEFFECTIVE

REPLACEMENT

REPLACEMENT

SWITCH THE VARIATOR OFF AND BACK ON

REPLACE THE PREVIOUS POINT IF INEFFECTIVE

CHECK POWER SUPPLY; IT MUST BE 20% BELOW MAXIMUM DURING
OPERATION

EXCESSIVE LOAD

MECHANICAL LOCKING, CHECK MECHANICAL CONDITIONS

CHECK VARIATOR EARTH CONNECTION, MOTOR CABLE AND MOTOR
INSULATION

CHECK MOTOR LOAD, VENTILATION AND ROOM TEMPERATURE. WAIT
FOR THE VARIATOR TO COOL DOWN BEFORE STARTING IT BACK UP

CHECK MECHANICS (WEAR, MECHANICAL LOCKING, OBSTACLES)

CHECK MOTOR LOAD. WAIT FOR IT TO COOL, REMOVE INVERTER
POWER AND THEN REPOWER.

CHECK CONNECTIONS BETWEEN VARIATOR AND MOTOR

IF USING A CONTACTOR DOWNSTREAM, VERIFY THE ACCURACY OF
THE CONNECTION, THE CABLE AND CONTACTOR

VERIFY NETWORK POWER

CHECK VARIATOR CABLE CONNECTIONS TO THE MOTOR AND MOTOR
INSULATION

REPLACEMENT

CHECK CABLES CONNECTING THE VARIATOR TO THE MOTOR AND
MOTOR INSULATION

WAIT FOR IT TO COOL BEFORE STARTING UP AGAIN

CHECK POWER
50
INS-RPSP-EN-05
SOLUTION