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7 Detailed Functions
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
7-5 Multi-function Terminal Functions (Group C)
7
• Use the reset function to reset the trip status of the inverter. This function is used also when the
inverter operates normally to shut off the inverter output.
To disable the reset function when the inverter operates normally, set the Reset Selection (C102) to
02 (Enabled only during trip) or 03 (Reset only during trip).
• If the reset signal is input to the inverter, calculated electronic thermal function data, calculated
regenerative braking usage rate data, multi-function pulse counter/current position counter data, and
internal counter data used for the Teaching Selection (P074) and protective function are cleared.
To prevent these data from being cleared, set the Reset Selection (C102) to 03 (Reset only during
trip).
• Setting the STOP Key Selection (b087) to 00 (Enabled) or 02 (Only resetting enabled) enables the
input of the reset signal via the STOP/RESET key on the Digital Operator.
• To input the reset signal via the control circuit terminal block, set the Multi-function Input S1 to S8
Selection (C008) to 18 (RS: Reset).
• The terminal RS (Reset) only supports NO (normally open contact) as the input method.
Therefore, the Multi-function Input S1 to S8 Operation Selection (C011 to C018) cannnot be set to 01
(NC: Normally closed contact). Be sure to set NO contact.
In addition, setting the Reset Selection (C102) to 02 (Trip reset at power-off) enables the reset
function to be activated at the falling edge of the signal.
• In the Reset Restart Selection (C103), select the restart method after reset is executed.
Setting C103 to 01 (Frequency matching restart) causes the inverter to perform frequency matching
restart also after the power supply is turned off and then on again.
However, when the Reset Selection (C102) is set to 03 (Trip reset only), or when the Reset Restart
Selection (C103) is set to 00 (0-Hz restart), the inverter does not restart.
Reset (RS)
Parameter
No.
Function name Data Default data Unit
b003 Restart Standby Time 0.3 to 100.0 1.0 s
b007
Frequency Matching
Lower Limit Frequency
0.00 to 99.99
100.0 to 400.0
0.00 Hz
b028
Frequency Pull-in Restart
Level
Heavy
load (CT)
0.20 x Rated current to 2.00 x
Rated current (0.4 to 55 kW)
Rated current
value
A
0.20 x Rated current to 1.80 x
Rated current (75 to 132 kW)
Light load
(VT)
0.20 x Rated current to 1.50 x
Rated current
Rated current
value
b029
Frequency Pull-in Restart
Parameter
0.10 to 30.00 0.50 s
b030
Starting Frequency
Selection at Frequency
Pull-in Restart
00: Frequency at shutoff
01: Max. frequency
02: Set frequency
00 –
C102 Reset Selection
00: Trip reset at power-on (Example 1)
01: Trip reset at power-off (Example 2)
02: Enabled only during trip (Reset at
power-on) (Example 1)
03: Trip reset only (Example 1)
02 –
C103 Reset Restart Selection
00: 0-Hz restart
01: Frequency matching restart (Example 3)
02: Frequency pull-in restart (Example 4)
00 –
C001 to
C008
Multi-function Input S1 to
S8 Selection
18: RS (reset) – –
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