Siemens SED2 Spezifikationen PDF herunterladen (Seite 97)

Troubleshooting

Siemens Building Technologies, Inc. 87

Error Cause Diagnosis/Remedy

Drive

Reaction

F0021,

Ground fault

The ground fault occurs if

the sum of the phase

currents is higher than 5%

of the nominal SED2

current.

NOTE: This error

message occurs on SED2s

with three current sensors;

that is, for SED2s of frame

sizes D to F.

— Off2

F0022,

Power stack

fault

The fault is caused by the

following events:

(1) dc link overcurrent =

short circuit of IGBT.

(2) short circuit of dc link

chopper

(3) ground fault.

Frame sizes A to C =

(1),(2),(3).

Frame sizes D to E =

(1),(2).

Frame size F = (2).

Since all these faults are

assigned to one signal on

the power stack, it is not

possible to establish which

one actually occurred.

• Check for loose output or short.

• Possible drive component failure.

Off2

F0023, Fault

at SED2

output

On-phase is interrupted at

the SED2 output.

— Off2

F0024,

Rectifier

over-

temperature

• Ventilation is inadequate.

• Fan is inoperative.

• Ambient temperature is

too high.

• Fan must turn when the SED2 is

running.

• Pulse frequency (P1800) must be

set to default value 4 kHz.

—

F0030, Fan

fault

Fan no longer works.

•

Fault cannot be masked while the

options module (BOP or AOP) is

connected.

• Replace the fan.

Off2

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