Siemens SED2 series Operating Instructions Manual page 110

Error Cause
F0071
No setpoints from USS during telegram off
Ø
USS (BOP link)
time.
setpoint fault
F0072
No setpoints from USS during telegram off
Ø
USS (COM link)
time.
setpoint fault
F0080
Broken wire at analog input.
Ø
ADC input signal
Signal level outside defined limits.
Ø
lost
F0085
External fault triggered via input terminals.
Ø
External fault
F0101
Software or processor error
Ø
Stack overflow
F0221
PID feedback below min. value of P2268.
PID feedback
below min. value
F0222
PID feedback below max. value of P2267.
PID feedback
below max. value
F0450
Alarm value:
BIST tests failure
1. Some power section tests have failed.
2. Some control board tests have failed.
4. Some functional test have failed.
8. Some I/O module tests have failed.
16. Internal RAM failed on power-up check.
F0452
Load condition changes at the motor
Ø
Belt failure
indicate a belt failure or mechanical fault.
detected
110/126
Siemens Building Technologies
HVAC Products
SED2 variable speed drives
Troubleshooting
Diagnosis & Remedy
Check communications to data transmission module.
Check USS master.
Check USS master.
Disable input terminals for fault trigger, or eliminate
external fault.
Check if DIN is set to ON.
Run self-test routines.
Change value of P2268.
Adjust feedback amplification.
Change value of P2267.
Adjust feedback amplification
The drive may run, but some functions do not work
properly.
Replace the drive.
Check the following:
1. Drive belt ok. The drive is not obstructed or seized?
2.
If external speed sensor is used, check proper
function. Check the following parameters:
P0409 (impulses/sec on nominal speed)
P2191 (belt failure and speed monitoring)
P2192 (delay time for P2191).
3. For belt failure detection without sensor, check the
following parameters:
P2182 (threshold frequency f1)
P2183 (threshold frequency f2)
P2184 (threshold frequency f3)
P2185 (upper torque threshold 1)
P2186 (lower torque threshold 1)
P2187 (upper torque threshold 2)
P2188 (lower torque threshold 2)
P2189 (upper torque threshold 3)
P2190 (lower torque threshold 3)
P2192 (delay for belt failure).
4.
Lubricate the drive if necessary.
.
CM1U5192en
Reaction
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
Off2
01.2002