Hitachi S1 Series User Manual

S1 series standard inverter
-144-
Function
code
Name
Detailed parameter description
Default
value
Modify
continue accelerated running.
Output current A
Output frequency f
Current-limit
threshold
Set
frequency
Acceleration
Constant
speed
Time t
Time t
Setting range of P11.06: 50.0–200.0%
Setting range of P11.07: 0.00–50.00Hz/s
P11.08
Inverter or motor
overload/underlo
ad pre-alarm
If the inverter or motor output current is larger
than the overload pre-alarm detection level
(P11.09), and the duration exceeds the overload
pre-alarm detection time (P11.10), overload
pre-alarm signal will be outputted.
Y,
RO1, RO2
Output current
Overload pre-alarm
threshold
Time t
Time t
Pre-alarm time tPre-alarm time t
Setting range of P11.08:
Enable and define overload pre-alarm function of
the inverter and motor
Setting range: 0x000–0x131
Ones:
0: Motor overload/underload pre-alarm, relative to
rated motor current;
1: Inverter overload/underload pre-alarm, relative
to rated inverter current.
Tens:
0: The inverter continues running after
overload/underload alarm;
0x000
○
P11.09
Overload
pre-alarm
detection level
G model:
150%
P model:
120%
○
P11.10
Overload
pre-alarm
detection time
1.0s
○

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