Sanhua SD2 series drive
35
User Manual v3.5 –Sep-27.2022
4. The MOC circuit is damaged;
17
Lost-Phase Protection
1. Poor connected compressor cable;
2. The compressor is damaged (winding open/short circuit);
3. The MOC circuit is damaged;
18
Startup Failure
1. Poor connected compressor cable;
2. The compressor is damaged (Stalling, wear, motor
demagnetization, winding open/short circuit etc.);
3. The MOC circuit is damaged;
19
Speed-Misalignment Protection
1. Poor connected compressor cable;
2. The compressor is damaged (Stalling, wear, motor
demagnetization, winding open/short circuit etc.);
3. The MOC circuit is damaged;
20
AC Over-Current
1. The power supply voltage is too low, or the power supply
voltage jump is too drastic;
2. The MOC circuit is damaged
21
IPM Temp. Sensor Fault
1. The MOC circuit is damaged
22
IPM Over-Temp.
1. The ambient temperature is too high;
2. Poor system heat dissipation;
3. The screws of the IPM module of the MOC are not locked;
4. The MOC circuit is damaged;
23(**)
PFC Temp. Sensor Fault (Reserved)
1. The MOC circuit is damaged
24(**)
PFC Over-Temp. (Reserved)
1. The ambient temperature is too high;
2. Poor system heat dissipation;
3. The screws of the PFC module of the MOC are not locked;
4. The MOC circuit is damaged;
25
MCU self-check Fault
1. The driver is greatly disturbed;
2. The MOC circuit is damaged;
Tab 6.3
1
）
*Three-Phase model only
2
）
**Single-Phase model only
Summary of Contents for SD2 Series
Page 1: ... SD2 Series Drive ...
