SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
SJ700-2 Instruction Manual NT204DX - Hitachi America, Ltd.
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Chapter 4 Explanation of Functions<br />
Timing chart for switching from the inverter to the<br />
commercial power supply<br />
Timing chart for switching from the commercial power<br />
supply to the inverter<br />
MC1<br />
MC2<br />
ON<br />
ON<br />
MC1<br />
MC2<br />
ON<br />
Duration of the interlock of MC2 and<br />
MC3 (0.5 to 1 second)<br />
MC3<br />
ON<br />
MC3<br />
ON<br />
FW<br />
ON<br />
FW<br />
4.2.49 Reset (RS) function<br />
The reset function allows you to recover the inverter from a tripped<br />
state.<br />
To perform resetting, press the STOP/RESET key of the digital<br />
operator or turn the RS terminal off.<br />
To use the control circuit terminal for resetting, assign function "18"<br />
(RS) to an intelligent input terminal.<br />
You can select the restart mode to apply after resetting with the restart mode after reset (C103). When<br />
C102 =03, starting with 0 Hz is selected regardless to C103 setting.<br />
If the inverter trips because of overcurrent when it starts the motor with matching frequency, increase the<br />
retry wait time before motor restart (b003).<br />
You can select the alarm reset timing with the reset mode selection (C102). You can also enable the reset<br />
signal to be output only when resetting an error alarm.<br />
The RS terminal can be configured only as an a-contact (NO).<br />
Do not use the RS terminal for the purpose of shutting off the inverter output. The reset operation clears<br />
the electronic thermal and BRD counter data stored in the inverter, and, without this data, the inverter may<br />
be damaged during operation.<br />
Item<br />
Retry wait time<br />
before motor restart<br />
Restart frequency<br />
threshold<br />
Reset mode<br />
selection<br />
CS<br />
Inverter output<br />
frequency<br />
Operation<br />
Restart mode after<br />
reset<br />
ON<br />
Function<br />
code<br />
b003<br />
b007<br />
C102<br />
C103<br />
Data or range of<br />
data<br />
0.3 to 100. (s)<br />
0.00 to 400.0 (Hz)<br />
00<br />
01<br />
02<br />
03<br />
CS<br />
Inverter output<br />
frequency<br />
Description<br />
(See the explanations of the retry after instantaneous power<br />
failure or the retry after trip due to insufficient voltage.)<br />
Time to wait after reset until restarting the motor<br />
(See the explanations of the retry after instantaneous power<br />
failure or the retry after trip due to insufficient voltage.)<br />
Resetting the trip when the RS signal is turned on (See<br />
example 1.)<br />
(When operation is normal) Shutting off the inverter output<br />
(When an error has occurred) Resetting the trip<br />
Resetting the trip when the RS signal is turned off (See<br />
example 2.)<br />
(When operation is normal) Shutting off the inverter output<br />
(When an error has occurred) Resetting the trip<br />
Resetting the trip when the RS signal is turned on (See<br />
example 1.)<br />
(When operation is normal) Disabling the inverter output<br />
(When an error has occurred) Resetting the trip<br />
Trip is reset (See example 1)<br />
Internal data is not reset. (see 4.3.13)<br />
(When operation is normal) Disabling the inverter output<br />
(When an error has occurred) Resetting the trip<br />
00 Start with 0 Hz<br />
01 Start with matching frequency (See example 3.)<br />
02 Restart with input frequency (See example 4.)<br />
ON<br />
0.5 to 1 second<br />
OFF<br />
Retry wait time (b003)<br />
Operation<br />
Starting with matching frequency<br />
Related code<br />
b003: Retry wait time before motor restart<br />
b007: Restart frequency threshold<br />
C102: Reset mode selection<br />
C103: Restart mode after reset<br />
C001 to C008: Terminal [1] to [8] functions<br />
4 - 55
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