Hitachi SJ Series User Manual page 353

Chapter 12
12.16.4 Preventing restart immediately
after power recovery
Q
• How to prevent the motor from starting rotation
suddenly when the inverter power is turned on
• How to stop the motor with an error signal when
the power is turned on again while an operation
command is present
A
• This function allows you to make the inverter trip
with error code [E13] displayed if the inverter
power is turned on when an operation command
has been turned on.
• You can recover the inverter from tripping by
performing the reset operation or turning the
operation command off. (Ex. 1)
• If the inverter is recovered from tripping with the
operation command left turned on, the inverter will
start operation immediately after recovery. (Ex. 2)
• The inverter can operate normally when an
operation command is turned on after the inverter
power is turned on. (Ex. 3)
(Ex. 1)
Power supply
[FW]
[USP]
[RS]
Alarm
Output speed
Parameter
Item
Input terminal
[CA-01]~[CA-11]
function
(Ex. 2)
Power supply
[FW]
[USP]
[RS]
Alarm
Output speed
Parameter
!
• Unlike other types of trip, the USP error [E013]
automatically clears when the operation command
is turned off.
• The power recovery restart prevention function
operates for 2 seconds at maximum after the
control power is input.
Power supply
Output speed
Data
[USP]: If the applicable [USP] terminal assigned
to an input terminal has been turned on, the
034
inverter will trip when the power is recovered
while an operation command is present.
12-16-4
Inverter Function
(Ex. 3)
[FW]
[USP]
[RS]
Alarm
Description