Hitachi S1 Series User Manual

S1 series standard inverter
-165-
7.6.6 Inverter overheating
Inverter overheating
Clean the heat sink to
improve the cooling
conditions
Reduce the carrier
frequency
If it is an inverter fault,
contact our company
If it is an inverter fault,
contact our company
Reduce the load and
increase the capacity
of the inverter
Add a cooling device
or derate the inverter
Whether the ambient
temperature is too
high?
Whether the carrier
frequency is too high?
Whether the heat sink
is blocked?
Whether the fan of
the inverter emits an
unusual sound?
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Whether the load is too
heavy or the capacity of
the inverter is too small?

Hitachi S1 Series Specifications

General

Output Frequency	0 - 400 Hz
Overload Capacity	150% for 60 seconds
Frequency	50/60 Hz
Control Method	Sensorless Vector Control
Protection Functions	Overcurrent, Overvoltage, Undervoltage, Overheat, Short Circuit
Communication	RS485, Modbus RTU
Output Voltage	3-Phase 200-240VAC, 3-Phase 380-480VAC (Matches Input Voltage)
Cooling Method	Fan Cooled