PROGRAMMING
SINUS K
MANUAL
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8.2.
ALARM MESSAGES
A01 Wrong Software
The software version of FLASH memory (human interface) is incompatible with DSP version (motor control) (see section
5.2).
SOLUTION: Contact ELETTRONICA SANTERNO’s AFTER–SALES SERVICE
A02 Wrong size
A wrong VTC SW size (> S50. ) was selected through jumpers J15 and J19.
SOLUTION: Reset jumpers to IFD SW position (see Section 12); VTC SW cannot be set up for this inverter size.
A03 EEPROM absent
EEPROM is not installed, is blank or damaged. EEPROM memory contains all customized parameters.
SOLUTION: Check if EEPROM is properly installed (U45 in board ES778/2/2) and if jumper J13 is correctly positioned
(pos. 1–2 for 28C64; pos. 2–3 for 28C16). If so, control board ES778/2 is to be replaced. Please contact
ELETTRONICA SANTERNO’s AFTER–SALES SERVICE.
A04 Wrong user’s par.
No Restore Default procedure occurred after switching to another application through jumpers J15 and J19.
SOLUTION: Do a Restore Default procedure (see Section 12).
A05 NO imp. opcode
A06 UC failure
Microcontroller failure.
SOLUTION: Reset the alarm. If the alarm condition persists, please contact ELETTRONICA SANTERNO’s AFTER–SALES
SERVICE.
A11 Bypass circ. failure
Faulty relay or contactor for the short–circuit of precharge resistors for DC link capacitors.
SOLUTION: Reset the alarm. If the alarm condition persists, please contact ELETTRONICA SANTERNO’s AFTER–SALES
SERVICE.
A15 ENCODER Alarm (VTC SW only)
Alarm A15 Encoder trips only if parameter C25 = [YES] or [YES A], when a difference between the expected speed and
the measured speed is detected.
SOLUTION: Check to see if the encoder is not properly connected, is not energized or CHA and CHB are reversed. See
also the Installation Manual for the encoder connection to optional board ES797.
A16 Speed maximum (VTC SW only)
Speed exceeds the maximum allowable value set through parameter C61. Set C61=0 to disable A16.
A18 Fan fault overtemperature
Heatsink overheated due to a locked fan.
SOLUTION: Replace fan.
If the alarm condition persists, please contact ELETTRONICA SANTERNO’s AFTER–SALES SERVICE.
A19 2nd sensor overtemperature
Heatsink overheated with fan off.
SOLUTION: Failure in the temperature and/or ventilation control devices. Please contact ELETTRONICA SANTERNO’s
AFTER–SALES SERVICE.