LS ELECTRIC L7NHF Series, Руководство пользователя

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2. Wiring and Connection
2-11
2.4.2
Power Input Sequence

Power Input Sequence

For wiring of the main power, use a magnetic contactor for the main circuit power as shown in
Section 2.4.1, "Power Supply Wiring Diagram." Set the magnetic contactor to be turned off
simultaneously with an alarm occurrence in the external sequence.

The control power (C1 and C2) should be applied simultaneously with or before the main power (L1,
L2, and L3). Also, when the power is off, shut off the control power simultaneously or after the main
power is cut off.

2 - 2.5 seconds after the power input, the alarm signal turns on (normal), and the Servo On
command signal is recognized. Therefore, when the Servo On command signal is on at the same
time as the power is input, the actual Servo On is activated 2 - 2.5 seconds later. Keep this in mind
when designing the power input sequence.

Timing Chart
Main power ,
control power
supply
2~2.5[s]
Servo On
command
Servo On
operation
Alarm
(normally On)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Main power ,
control power
supply
2~2.5[s]
Servo On
command
Servo On
operation
Alarm
(normally On)
ON
OFF
ON
OFF
ON
OFF
ON
OFF