Magnetek IMPULSE G+ Mini, Техническое руководство

Страница: 135 / 182

IMPULSE
®
•G+ Mini Technical Manual
November 2020
Page 135
6.1.3 VFD Faults, Alarms and Indicators
Motor rotates, but at minimum speed only. 1. Check wiring of speed inputs and verify inputs (U01.10).
2. Verify speed reference setting (A01.04).
3. Verify reference and run source settings are correct (B03.01,
B03.02).
4. Verify reference priority setting (B01.18).
5. Check if motor stalled due to excessive current (U01.03).
Motor RPM too high or too low. 1. Compare motor nameplate specifications with E2 parameters.
2. Check maximum frequency setting (E01.04).
3. Check minimum frequency setting (E01.09).
Fault Fault or Indicator Name/Description Corrective Action
bb
(flashing)
Base Block
External Base Block Indicator. The flashing
base block signal is the result of a multi-function
input in the terminal strip. The base block
indicates that the VFD’s IGBTs have been
disabled. The motor will begin coasting when the
base block input is received. If a RUN command
is still present when the BB signal is removed,
the output voltage will be restored to the previous
operating level and operation will continue at the
previously commanded frequency.
1. Check H01.01 through H01.07 for proper pro-
gramming.
2. Check terminal status. (U01.10)
BE0
(flashing)
Brake Ans Lost
Brake Answer-Back signal lost during run.
While running, the multi-function input brake
answer back is lost.
1. Check brake answer back circuit.
2. Check terminal status. (U01.10)
BE4
(flashing)
Brake Answer 1
Brake Answer-Back, Brake not Released. At
Start, Brake Answer-back is not input within
predetermined time (C08.04) after electric brake
release command is output–Electric brake not
released.
1. Check brake answer back circuit.
2. Increase the value of C08.04.
3. Check terminal status (U01.10).
BE5
(flashing)
Brake Answer 2
Brake Answer-Back At Stop. At Stop, Brake
Answer-back signal is not removed within
predetermined time (C08.11) after electric brake
release command is removed–Electric brake not
closed.
1. Check brake answer back circuit.
2. Increase the value of C08.11 time.
CALL
(flashing)
Serial Communication Transmission Error.
Control data is not received correctly after power
supply is turned ON for 2 sec.
1. Check serial device connections.
2. Ensure VFD is properly programmed for serial
communication.
CE
Modbus Com Err
Modbus Communication Error. Serial
communications data corrupted.
1. Check serial connections (R+, R-, S+, & S-).
2. Check H05.01 through H05.03 for proper
programming.
CF
Control Fault
Control Fault. A torque limit was reached for 3
seconds or longer while in Open Loop Vector.
1. Perform auto tune.
2. Check motor parameters.
CoF
Current Offset Fault. The VFD automatically
adjusts the current offset, the calculated value
exceeded the allowable setting range.
1. Press reset.
2. Check brake.
3. Check brake contact.
Symptom Corrective Action