Set Functions Related To Protection And Warning, Each Output Signal; Trip Signal (Al) - Hitachi NES1-004SB Quick Reference Manual

Chapter 7 Explanation of Functions

7.8 Set functions related to protection and warning, each output signal

7.8.1 Trip signal (AL)

When it detects an anomaly, the inverter output is shut off, the inverter outputs a trip signal.
This is called a trip.
If you reset, the inverter deactivate trip state. Trip signal is turned OFF at the same time.
How to Reset.
1) Pressing the STOP/RESET key.
2) To use the reset terminal (18:RS).
(Part of the cause of trip can not be released by a reset. In this case, it is required a power cycle.)
Trip signal(05:AL) is assigned to the output terminal 11(C021) or Alarm relay (C026).
(Initial data C026 = 05[AL])
Alarm relay contacts are 1c.(Refer to 7.3.5)
Item
Output [11] function
Alarm relay function
Terminal [1] to [5] functions
Run command
(FW,RV)
Rotational speed
Reset signal
AL signal
Occurrence of a trip
Function code
C021
C026
C001 to C005
Occurrence of a trip
RUN
RUN
STOP
RESET
Rest
RUN
STOP
RESET
STOP
RUN
STOP
RESET
Reset
Trip
7 - 60
Data
05 AL : Trip signal
18 RS : Reset signal
Free-run
Run
Occurrence of a trip
Description