Hitachi S1 Series User Manual

S1 series standard inverter
-85-
Before adjustment
After adjustment
Response
Time t
Control long-term vibration: If the cycle of periodic vibration is longer than the set value of integral
time (Ti), it indicates the integral action is too strong, prolong the integral time (Ti) to control vibration.
Before adjustment
After adjustment
Time t
Response
Control short-term vibration: If the vibration cycle is short is almost the same with the set value of
derivative time (Td), it indicates derivative action is too strong, shorten the derivative time (Td) to
control vibration. When derivative time (Td) is set to 0.00 (namely no derivative control), and there is
no way to control vibration, decrease the proportional gain.
Before adjustment
After adjustment
Response
Time t
Related parameter list:
Function
code
Name
Detailed parameter description
Default
value
P09.00
PID reference source
0: Keypad (P09.01)
1: AI1
2: AI2
3: AI3
4: High-speed pulse HDIA
5: Multi-step
6: Modbus communication
7 – 8: Reserved
9: High-speed pulse HDIB
10 - 12: Reserved
0
P09.01
Pre-set PID reference of
-100.0%–100.0%
0.0%

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