Chapter 4 explanation of functions – Hitachi SJ700-2 User Manual

Page 98

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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

4 -

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