Honeywell 3G SmartVFD HVFD3D2A0020, Installation And User Manual

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76 31-00559-01
Motor is not
reaching
maximum
speed Frequency limits set
wrong Check output limits in 4-
13 Motor Speed High
Limit [RPM], 4-14 Motor
Speed High Limit [Hz]
and 4-19 Max Output
Frequency. Program correct settings.
Reference input signal
not scaled correctly Check reference input
signal scaling in 6-0*
Analog I/O Mode and
parameter group 3-1*
References. Reference
limits in parameter group
3-0* Reference Limits. Check settings in
parameter group 1-6*
Load Depen.Setting. For
closed-loop operation,
check settings in
parameter group 20-0*
Feedback.
Motor runs
rough Possible
overmagnetization Check for incorrect motor
settings in all motor
parameters. Check motor settings in
parameter groups
1-2* Motor Data, 1-3*
Addl. Motor Data, and
1-5* Load Indep. Setting.
Motor will not
brake Possible incorrect
settings in the brake
parameters. Possible too
short ramp-down times Check brake parameters.
Check ramp time
settings. Check parameter group
2-0* DC Brake and 3-0*
Reference Limits.
Open power
fuses or
circuit
breaker trip Phase-to-phase short Motor or panel has a
short phase-to-phase.
Check motor and panel
phase for shorts. Eliminate any short
circuits detected.
Motor overload Motor is overloaded for
the application. Perform start-up test and
verify motor current is
within specifications. If
motor current is
exceeding nameplate full
load current, motor may
run only with reduced
load. Review the
specifications for the
application.
Loose connections Perform pre-start-up
check for loose
connections Tighten loose
connections.
Line power
current
imbalance
greater than
3% Problem with line power
(See Alarm 4 Mains phase
loss description) Rotate input power leads
into the adjustable
frequency drive one
position: A to B, B to C, C
to A. If imbalanced leg follows
the wire, it is a power
problem. Check line
power supply.
Problem with the
adjustable frequency
drive Rotate input power leads
into the adjustable
frequency drive one
position: A to B, B to C, C
to A. If imbalance leg stays on
same input terminal, it is
a problem with the unit.
Contact the supplier.
Symptom Possible cause Test Solution