Sanyo ECO-i 3-WAY MULTI SYSTEM Service Manual page 15

3. Compressor Control
(2) Current protection
Inverter compressor current control is composed of primary current control and secondary current control.
Current protection control for the inverter compressor is performed by self-protection in the inverter circuit, and
does not increase or decrease the compressor capacity.
Primary current
1
–
–
26.5
25
24
3-6-5. Roadmap control after trip
When restarting after trip stop occurs, the horsepower may increase slowly depending on the trip counter value.
(1) If Trip counter = 1, the horsepower increases at a speed that is 1/2 of ordinary roadmap control.
(2) If Trip counter = 2, the horsepower increases at a speed that is 1/3 of ordinary roadmap control.
The trip counter is cleared if no trip occurs within 10 minutes after operation starts.
Secondary current
75 or (150 °C) Thermostat OFF
18.5 or above Thermostat OFF
14.5 ~ 18.5 Horsepower decreased
14 ~ Less than 14.5 Prohibit horsepower increase
Less than 14 Permit horsepower increase
Operation stops instantaneously due
to activation of hybrid IC
Thermostat OFF. Operation stops for
100 ms for current protection
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3-WAY ECO-i SYSTEM
Control Functions