Hitachi J300U Series Instruction Manual page 99

(Function mode 1)
Display
Function Function
sequence
No. name
13 F-20 DC braking DCB SW
DC selection
injection
braking DC braking DCB KIND
type
selection
DC braking DCB F
frequency
selection
DC braking DCB V-STA
force selec-
tion (at start)
DC braking DCB V-STP
force selec-
tion (at stop)
DC braking DCB T-STA
time selec-
tion (at start)
DC braking DCB T-STP
time selec-
tion (at stop)
DC braking DCB STOP-T
output cut-
off time
14 F-21 Dynamic
braking
setting
15 F-22 Allowable
The instantaneous
allowable power failure
usage time setting
ratio of Reclosing
the standby after
braking instantaneous
resistor power failure
for 100 recovered
seconds Instantaneous
is set. power failure
restart
selection
Trip selection
during stop
at under
voltage
16 F-23 Electronic
Electronic thermal
thermal characteristic
selection
Electronic
thermal level
setting
NOTE 1: Initial setting of usage ratio
(Function mode 2)
Initialization display
contents
OFF
LVL
0000.5 Hz
00
00
000.0 s
000.0 s
0.00 s
adjustment
BRD-%ED 001.5%
IPS TIME 1.0 s
IPS WAIT 001.0 s
IPS POWR ALM
IPS TRIP OFF
E-THM CHAR SUB
E-THM LEVEL 100%
1.5% 055-075L/HF
12-8
Setting, change
Initialization
contents
OFF ON/OFF
LVL LVL/EDG
0.5 Hz 0 to 400.0 Hz
0 0 to 20
0 0 to 20
0 s 0 to 600.0
0 s 0 to 600.0
0 s 0 to 5.00
1.5% 0 to 100.0
1.0 s 0.3 to 25 s
1.0 s 0.3 to 100.0 s
ALM ALM/FTP/
RST/ZST
OFF ON/OFF
SUB CRT/SUB/FRE
100% 20 to 120%
0% 110-550L/HF
Setting contents
• DC braking
ON: DC braking available
OFF: DC braking unavailable
• DC braking method selection
LVL: Level operation
EDG: Edge operation
• The frequency at which the
DC braking starts is set.
• The DC braking force at start
is set.
• The DC braking force at stop
is set.
• The DC braking time at start
is set.
• The DC braking time at stop
is set.
The output frequency is
lowered to the DC braking
frequency and the free run
time during execution of DC
braking is set.
• The allowable usage ratio of
the braking resistor for 100
seconds is set. (NOTE 1)
• When an instantaneous power
failure occurs, the allowable
time until the power failure is
recovered is set.
• The waiting time until the
rerunning starts after an
instantaneous power failure
occurs and is recovered is set.
ALM: Alarm output
ZST: 0 Hz start retry
FTP: Retry after frequency
matching is stopped
RST: Rerunning start retry
When an instantaneous power
failure occurs:
ON: Trip
OFF: Non-trip
• Electronic thermal characteris-
tic setting CRT: Constant
torque characteristic
SUB: Reduced torque charac-
teristic
FRE: Free characteristic