Hitachi NES1-002LB, Quick Reference Manual

Page: 283 / 295

Chapter 13 Option
13 - 54
Output Function Summary Table
Option
Code
Termina
l
Symbol
Function Name Description
Mode to Stop Mode
32 NDc Network Disconnect
Detection
ON
When the communications watchdog timer (period
specified by
) has time out
OFF
When the communications watchdog timer is satisfied
by regular communications activity
33 LOG Logic Output
Function 1
ON
When the Boolean operation specified by has
a logical “1” result
OFF
When the Boolean operation specified by has
a logical “0” result
41 FR Starting Contact
Signal
ON Either FW or RV command is given to the inverter
OFF
No FW or RV command is given to the inverter, or
both are given to the inverter
42 OHF Heat Sink Overheat
Warning
ON
Temperature of the heat sink exceeds a specified
value (
)
OFF
Temperature of the heat sink does not exceed a
specified value (
)
43 LOC Low load detection ON Motor current is less than the specified value ( )
OFF
Motor current is not less than the specified value
(
)
50
IRDY
Inverter Ready
Signal ON Inverter can receive a run command
OFF Inverter cannot receive a run command
51
FWR Forward Rotation
ON Inverter is driving the motor in forward direction
OFF Inverter is not driving the motor in forward direction
52
RVR Reverse Rotation
ON Inverter is driving the motor in reverse direction
OFF Inverter is not driving the motor in reverse direction
53
MJA Major Failure Signal
ON Inverter is tripping with major failure
OFF Inverter is normal, or is not tripping with major failure
54
WCO
Window
Comparator for
Analog Voltage
Input
ON
Analog voltage input value is inside of the window
comparator
OFF
Analog voltage input value is outside of the window
comparator
58
FREF
Frequency
Command Source ON Frequency command is given from the operator
OFF Frequency command is not given from the operator
59
REF
Run Command
Source ON Run command is given from the operator
OFF Run command is not given from the operator
60
SETM 2
nd
Motor Selection
ON 2
nd
motor is being selected
OFF 2
nd
motor is not being selected
no
no Not used
ON -
OFF -