Hitachi SJ Series, User Manual

Page: 185 / 786

12-4-16
Chapter 12 Inverter Functions
12.4.12 Remote operation of frequency
• Want to change the frequency of the motor using
signal input.
• Want to change the frequency fusing a remote
external button.
• Want to change the PID target value fusing a
remote external button.
UP/DOWN function
• The frequency command of the inverter can be
changed by a signal input if 020 [FUP terminal and
021 [FDN] terminal are assigned in the input
terminal function.
• This function works following the selected
frequency command when the frequency command
selection [AA101] is 07 (parameter effective) or
when a multi-step speed command is given.
• The command operation time with the terminals
020[FUP]/021[FDN] being ON follows the
acceleration time [CA-64] to increase or the
deceleration time [CA-66] to decrease.
Action chart
(For the case where the frequency command comes
with the parameter setting and multi-step speed
function)
• When 020 [FUP] terminal / 021 [FDN] terminal is
made ON/OFF immediately after the power
shutdown, data may not be able to be correctly
saved.
• Cannot be used to set the frequency of the input
terminal function 029 [JG] jogging operation.
• Even when 024 [SET] function is used to switch to
the second control, the operation time follows the
acceleration time [CA-64] to increase or the
deceleration time [CA-66] to decrease.
• If 01 (save) is chosen in [CA-61], the frequency
value adjusted by the 020 [FUP] terminal / 021
[FDN] function can be saved. To clear the saved
frequency value, assign 022[UDC] to the input
terminal and change the [UDC] terminal from ON to
OFF. Clearance by [UDC] follows the designated
value of [CA-62].
Ｑ
Ａ
！
Operation
command.
(FW,RV)
FUP
FDN If [FUP] and [FDN] terminals are made ON
simultaneously, acceleration/deceleration is
not made.
Frequency
command
Output
frequency