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Chapter 4 Explanation of Functions
(2) Output of the alarms for instantaneous power failure and undervoltage in the stopped state
Use function "b004" to specify whether to output an alarm when instantaneous power failure or
undervoltage occurs.
The inverter outputs the alarm providing the control power remains in the inverter.
Output of the alarms for instantaneous power failure and undervoltage in the stopped state
Examples 5 to 7 show the alarm output operations with standard settings. Examples 8 to 10 show the
alarm output operations with the settings to supply DC power (P-N) to control power supply terminals R0
and T0.
Note 1: You can assign the instantaneous power failure alarm signal (IP: 08) and the undervoltage alarm
signal (UV: 09) to any of the intelligent output terminals [11] to [15] (C021 to C025) and the alarm
relay terminal (C026) to output the alarm signals.
Note 2: For the alarm output following the occurrence of power failure of 1 second or longer, see the
explanation of reset (Section 4.2.48).
ple 5) b004:00
y
Operation command
put
(Example 6) b004:01
Power supply
Operation command
Inverter output
(Example 7) b004:02
Power supply
Operation command
Inverter output
y
ation command
put
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
While the inverter is stopped
While the inverter is operating
While the inverter is stopped
While the inverter is operating
While the inverter is stopped
While the inverter is operating
(Example 8) b004:00
Power supply
Operation command
Inverter output
While the inverter is stopped While the inverter is operating
Power supply
Operation command
Inverter output
(Example 9) b004:01
Power supply
Operation command
Inverter output
While the inverter is stopped While the inverter is operating
Power supply
Operation command
Inverter output
(Example 10) b004:02
Power supply
Operation command
Inverter output
While the inverter is stopped While the inverter is operating
Power supply
Operation command
Inverter output
Undervoltage
(Exam
Power suppl
Power suppl
Oper
Inverter out
Inverter out
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