Shini SHD - Anti-Phase Alarm E-02; Input Overload Alarm E-03

Shini Group
Technology & Marketing Dept
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Shini/CSC-TM 2013-11 zh-cn Shini product repair manual.doc 1.0 13 (62)
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4.4.2 Anti-phase Alarm E-02
The machines are designed to be with anti-phase protector in the factory in order
to ensure it can work well. When the alarm occurs, corresponding anti-phase
alarm indicator lights, LED digital display area shows the fault code.
The alarm indicates the fault has two possible reasons: power anti-phase and
lack-phase.
In general, you can eliminate the anti-phase fault through exchanging any two
main power cord of three-phase source. You can’t eliminate the anti-phase fault
through changing three-phase source phase sequence of anti-phase protector.
Because the latter simply exclude alarm, but the actual direction of rotation of
each blower inside the machine has not changed, it will lead to machine’s
abnormal work.
If alarm is not excluded after changing three-phase source, you need to use
multimeter to check source lack-phase and find reason to solve it.
4.4.3 Input Overload Alarm E-03
When the alarm occurs, corresponding overload alarm indicator of control panel
lights, LED digital display area shows the fault code.
The alarm indicates current of blower inside the machine is excessive which leads
to overload.
The fault is usually caused by following areas problem:
Thermal overload relay setting value is too small. Check the thermal overload
relay setting, confirm its value is reasonable.
Blower is lack-phase running. Blower source lack-phase, causing current loaded
on a phase too large, thus lead to blower overload. You need to check whether
the electromagnetic contactor is working properly and electromagnetic contactor
inputs to output three-phase current is balance. In the case you usually need to
replace electromagnetic contactor.
Internal mechanical fault of blower. The case generally caused by motor bearing
of blower damage lead to motor get stuck, the motor current would exceed the
rated current in a short time. The other case, there are large and hard debris enter
the inside of the blower, lead stuck between the fan and the casing, resulting in
motor stall, causing an overload fault. In the case you need to replace blower
bearing or clean up debris inside the blower.
Blower air inlet filter is clogged serious. Seriously clogged filter will result in
reduced air flow into the high-pressure blower, the corresponding increase in its