Hitachi Welder l300p Manuale Utente
Hitachi
’
s L300P Series Variable Fre
Increased Energy Savings for Your
AUTOMATIC ENERGY-SAVING
FUNCTION
FUNCTION
With its Automatic Energy-saving Function, the L300P delivers
“real-time” energy-saving operation for your fan and pump
applications. The function insures that motor operates at minimum
current in response to the torque required by the load.
“real-time” energy-saving operation for your fan and pump
applications. The function insures that motor operates at minimum
current in response to the torque required by the load.
ENHANCED INPUT/OUTPUT TERMINALS
Three relay output terminals are provided
as standard for flexible interface to external
control systems.
as standard for flexible interface to external
control systems.
ANALOG OUTPUT MONITOR
In addition to PWM monitor(FM), programmable analog output monitors are also available for
both voltage(0-10VDC) and current(4-20mA) at AM and AMI terminals of the L300P.
both voltage(0-10VDC) and current(4-20mA) at AM and AMI terminals of the L300P.
INTELLIGENT INPUT/ OUTPUT TERMINAL SYSTEM
The L300P features an intelligent control
terminal system, which allows necessary
drive I/O functions to be freely programmed.
Input terminals can be selected for either
sink or source type logic.
terminal system, which allows necessary
drive I/O functions to be freely programmed.
Input terminals can be selected for either
sink or source type logic.
EASY- TO-USE OPERATOR PANEL
Output frequency
Output current
Rotation direction
Process variable, PID feedback
Intelligent input terminal status
Output current
Rotation direction
Process variable, PID feedback
Intelligent input terminal status
INTELLIGENT RELAY OUTPUTS
NO contact X 2 NO-NC contact X 1
AL2
12C
12A 11C
11A
AL0 AL1
L300P's digital operator panel supports various monitoring functions.
Cumulative power-on time
Trip event
Trip history
Warning code
Trip event
Trip history
Warning code
Intelligent output terminal status
Scaled output frequency
Output voltage
Power
Cumulative RUN time
Scaled output frequency
Output voltage
Power
Cumulative RUN time
Example of Energy Savings (Fan)
Operation by Inlet vane
and damper
and damper
Operation by
v/f control
v/f control
Operation by Automatic
Energy-saving Function
Energy-saving Function
Amount of energy
to be saved
to be saved
Power Consumption
Frequency
[Sink type logic]
CM1
FW
L300P
P24
FW
L300P
[Source type logic]
Upper System
Upper System
+
Power Supply
1
WIDE RANGE OF APPLICATION SPECIFIC FUNCTIONS
WIDE RANGE OF APPLICATION SPECIFIC FUNCTIONS