N700E INSTRUCTION MANUAL
5-28
Alarm Signal output [AL]
The Inverter alarm signal is active when a fault has occurred and it is in the Trip Mode.
When the fault is cleared the alarm signal becomes inactive.
We must make a distinction between the alarm signal [AL] and the alarm relaycontacts AL0, AL1and AL2.
The signal [AL] is a logic function which you can assign to the relay output terminalRN0-RN1 and RN2-RN3.
The most common (and default) use of the relay is for [AL], thus the labelingof its terminals.
Option
Code
Terminal
Symbol
Function Name
Input
State
Description
5
AL
Alarm signal
ON
When an alarm signal has occurred and has
not been cleared
OFF
When no alarm has occurred since the last clearing
of alarm(s)
Valid for inputs:
C13, C14, C15, C16, C17
Required setting
5
Notes:
•When the alarm output is set to normally closed
[NC], a time delay occurs until the contact is closed
when the power is turned on.
Therefore, when the alarm contact output is to be
used, set a delay of about 2seconds when the
power is turned on.
Terminals RN0-RN1 and RN2-RN3 are relay
outputs, so the electric specification of
[AL] is similar tothe contact output terminals
AL0, AL1, AL2.
•See the description of AL1, AL2 and AL0.
•When the inverter power supply is turned off,
the alarm signal output is valid as long as
the external control circuit has power.
•The signal output has the delay time
(300ms nominal) from the fault alarm output.
•Output terminal RN0-RN1 is a relay contact a.
In case of contact b, setup C16.
•Output terminal RN1-RN2 is a relay contact a.
In case of contact b, setup C17.
