Hitachi S1 Series User Manual

S1 series standard inverter
-95-
Function
code
Name
Detailed parameter description
Default
value
Modify
P00.14
Carrier frequency
setup
Carrier
frequency
Electro magnetic
noise
Noise and leakage
current
Cooling
level
High
LowHigh
Low
High
Low
1kHz
10kHz
15kHz
The relation between the model and carrier
frequency is shown below.
Model
Default value of
carrier
frequency
230V
0.4–2.2kW
8kHz
400V
0.75–11kW
8kHz
15–55kW
4kHz
Above 75kW
2kHz
Advantages of high carrier frequency are as
follows: ideal current waveform, few current
harmonics and small motor noise.
Disadvantages of high carrier frequency are as
follows: growing switch consumption, enlarged
temperature rise, impacted output capacity; under
high carrier frequency, the inverter needs to be
derated for use, meanwhile, the leakage current
will increase, which increases electromagnetic
interference to the surroundings.
While low carrier frequency is the contrary. Low
carrier frequency will cause unstable operation at
low frequency, decrease the torque, or even lead
to oscillation.
If the default carrier frequency is exceeded during
use, derating is required, derate by 10% for every
additional 1k carrier frequency.
Setting range: 1.2–15.0kHz
Depend
on
model
○
P00.15
Motor parameter
autotuning
0: No operation
1: Rotary autotuning; carry out comprehensive
motor parameter autotuning; rotary autotuning is
used in cases where high control precision is
0
◎

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