Hitachi SH1-900H - Page 68

4-25
Chapter 4
For parameter configuration
[bA101] to [bA116]
■Parameter mode (b code)
Frequency limit
Code/Name
Range (unit)
Initial
value
bA101 Upper frequency
limit source selection,
1st-motor
00(Disable)/
01(Terminal[Ai1])/
02(Terminal[Ai2])/
03(Terminal[Ai3])/
04(Terminal[Ai4])/
05(Terminal[Ai5])/
06(Terminal[Ai6])/
07(Parameter Setting)/
08(RS485)/
09(Option-1)/
10(Option-2)/
11(Option-3)/
12(Pulse train
input(internal))/
13(Pulse train
input(option))
00
bA102 Upper frequency
limit, 1st-motor
0.00 to 590.00(Hz)
0.00
bA103 Lower frequency
limit , 1st-motor
0.00 to 590.00(Hz)
0.00
・The upper and lower limits of the frequency reference
are set by the above parameters.
Torque limit
Code/Name
Range (unit)
Initial value
bA110
Torque limit selection,
1st-motor
00(Disable)/
01(Terminal[Ai1])/
02(Terminal[Ai2])/
03(Terminal[Ai3])/
04(Terminal[Ai4])/
05(Terminal[Ai5])/
06(Terminal[Ai6])/
07(Parameter
Setting)/
08(RS485)/09(Optio
n1)/
10(Option2)/11(Opti
on3)
07
bA111 Torque limiting
parameters mode selection,
1st-motor
00(4 quadrants)/
01(Switch by [TRQ1]/
[TRQ2] terminals)
00
bA112 Torque limit 1
(Forward drive), 1st-motor
0.0 to 500.0(%)
150.0(%)
bA113 Torque limit 2
(Reverse regenerative),
1st-motor
0.0 to 500.0(%)
150.0(%)
bA114 Torque limit 3
(Reverse drive), 1st-motor
0.0 to 500.0(%)
150.0(%)
bA115 Torque limit 4
(Forward regenerative),
1st-motor
0.0 to 500.0(%)
150.0(%)
bA116 Torque limit
LADSTOP selection,
1st-motor
00(Disable)/
01(Enable)
00
•The torque limit function is effective for vector control.
(with sensor, sensorless, 0Hz range sensorless).
•If the input terminal 060[TL] torque limit enabled is not
assigned, [bA110] is always enabled.
When input terminal 060 [TL] is assigned and turned on, the
torque limit function [bA110] becomes valid. When it is off,
the torque limit value becomes the maximum value in the
data setting range.
• When the torque is limited, the output terminal 022[TRQ]
torque limiting signal is ON.
[bA120] to [bA128]
Overcurrent suppression function setting
Code/Name
Range (unit)
Initial
value
bA120 Overcurrent
suppression enable, 1st-motor
00(Disable)/
01(Enable)
00
bA121 Overcurrent
suppression level, 1st-motor
Inverter rated
Current
×(0.0 to 2.0)(A)
Inverte
r rated
current
×1.8
・Overcurrent can be suppressed, but in that case there is
a possibility the motor become in a step-out state.
Disable Overcurrent suppression in case an inverter is
used in crane.
Overload restriction function settings
Code/Name
Range (unit)
Initial
value
bA122
Overload restriction 1
mode selection,
1st-motor
00(Disable)/
01(Enable during accel. and
constant speed)/
02(Constant speed only)/
03(Enable during accel. and
constant speed (accel. during
regeneration))
01
bA123
Overload restriction 1
active level, 1st-motor
Inverter rated current
×(0.2 to 2.0)(A)
INV
rated
current
×
1.5(A)
bA124 Overload
restriction 1 action time,
1st-motor
0.10 to 3600.00(s)
1.00
bA126
Overload restriction 2
mode selection,
1st-motor
00(Disable)/
01(Enable during accel. and
constant speed)/
02(Constant speed only)/
03(Enable during accel. and
constant speed (accel. during
regeneration))
01
bA127
Overload restriction 2
active level, 1st-motor
Inverter rated current
×(0.2 to 2.0)(A)
INV
rated
current
×
1.5(A)
bA128 Overload
restriction 2 action time,
1st-motor
0.10 to 3600.00(s)
1.00
・When the current is increased over “Overload restriction level”,
the overload restriction function reduces the current
automatically by lowering the frequency.
・Using input terminal 038[OLR] state, the overload restriction
1(OFF) and overload restriction 2(ON) can be used.
Inverter output
frequency
Overload restriction level
[bA123]/[bA127]
Output Current
Reference
frequency
Deceleration according to
the deceleration time at
overload restriction
Maximum frequency
[Hb105]
[Hd105]