21
AC310 Universal AC Drive Service Manual
⚫
Detect the relay according to the various device detection methods provided in the
appendix for overhaul.
Note: The fan circuit is driven by a MOS tube (Q2), so it is necessary to focus on detecting
the static value of the MOS tube (Q2).
Dynamic Detection
⚫
After normal power-up, change the fan operation mode to fan running after power-up,
check the fan power socket voltage, 0V before running, 24V after running, if the fan is
connected at this time, the power supply hiccups are judged to be a short-circuited fan, the
voltage of FAUOUT when the fan is running is a low level of 0.455V or so, and the voltage
of FAUOUT is 5V when the fan is not running. 5V when FAUOUT is not running.
4. Easy to damage the device
Optocoupler, MOS tube
5. Device bit number and specifications
Resistance
R8=300Ω/0805
R142=5.1k/0805
R114/R115=10K/0805
Capacitance
C25/C115=100nf/0805
MOS tube
Q2=CEU6186
Optocoupler
O11=EL2501S(K)
Diode
D110=1N4148WS
Summary of Contents for AC310
Page 23: ...22 AC310 Universal AC Drive Service Manual 2 7 Switching Power Supply...
Page 47: ...46 AC310 Universal AC Drive Service Manual 3 7 Keyboard Circuitry...
Page 54: ...53 AC310 Universal AC Drive Service Manual 3 10 Current Acquisition Detection and Maintenance...
Page 55: ...54 AC310 Universal AC Drive Service Manual 3 11 OC Fault Detection and Maintenance...
