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Chapter 4
(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.
(Example 5) b004:00
Power supply
Operation command
Inverter output
(Example 6) b004:01
Power supply
Operation command
Inverter output
(Example 7) b004:02
Power supply
Operation command
Inverter output
(Example 8) b004:00
Power supply
Operation command
Inverter output
(Example 9) b004:01
Power supply
Operation command
Inverter output
(Example 10) b004:02
Power supply
Operation command
Inverter output
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).
While the inverter is stopped
While the inverter is stopped
While the inverter is stopped
While the inverter is stopped
While the inverter is stopped
Undervoltage
While the inverter is stopped
Explanation of Functions
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
Power supply
Operation command
Inverter output
4-35
While the inverter is operating
While the inverter is operating
While the inverter is operating
While the inverter is operating
While the inverter is operating
While the inverter is operating
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