Specifications

SED2 VFD Startup, Operation, and Maintenance Manual
86 Siemens Building Technologies, Inc.
Error Cause Diagnosis/Remedy
Drive
Reaction
F0004,
SED2 over-
temperature
• Ventilation is inadequate.
• Fan is inoperative.
• The ambient temperature
is too high.
• Fan must turn when the SED2 is
running.
• Pulse frequency must be set to a
lower value.
• Ambient temperature could be
higher than specified for the
SED2.
Off2
F0005,
SED2 I
2
t
• The SED2 is overloaded.
• Duty cycle is outside the
tolerance.
• Motor power (P0307)
exceeds the SED2 power
(P0206).
• Load cycle must lie within the
limits specified.
• Motor power (P0307) ≤ SED2
power (P0206).
Off2
F0011, Motor
over-
temperature
• Motor is overloaded
• Protection is too finely
tuned for the duty cycle.
• Rated Motor Efficiency
P0309 is not accurate.
• Make sure that the load duty
cycle (temporary overload) lies
within the limits specified.
• Verify P0640 is set for the
application.
• Verify motor efficiency setup via
P0309 equals motor nameplate
data.
NOTE: Set P0003=3 and P0010=1
and then advance to P0309. Set
efficiency to motor rated efficiency,
or 99. Advance to P3900=3.
Off2
F0012,
SED2
temperature
signal lost
Wire breakage of the SED2
temperature sensor (heat
sink).
— Off2
F0015, Moto
r
temperature
signal lost
• Breakage or short-circuit
of the motor temperature
sensor.
• If a signal loss is
detected, temperature
monitoring switches to
monitoring the thermic
motor image.
— Off2
F0020, 1
phase for
input power
supply
missing
One of the 3 phases of the
input power supply voltage
is missing.
Check wiring of the 3 phases at the
SED2 input supply voltage.
Off2