Mitsubishi Electric FR-F820-00077 Instruction Manual page 508

(A) Application parameters
● The input signals are as shown below.
Signal
MRS
CS
STF
(STR)
OH
RES
X95/X96
Tab. 5-158: Input signals
For separated converter types, the X10 signal is assigned to the terminal MRS in the initial setting.
For the MRS signal, set "24" to any of Pr. 180 to Pr. 189 (input terminal function selection) to assign
the function to another terminal.
When the MRS signal is OFF, neither the commercial power supply operation nor the inverter
operation can be performed.
Terminal CS is initially set to "no function". To enable CS signal, set "6" in Pr.186 "CS terminal function
selection" to assign the function to a terminal. The CS signal operates only when the MRS signal is
ON.
STF(STR) operates only when the MRS and CS signals are both ON.
The RES signal can be used for reset input acceptance with Pr. 75 "Reset selection/disconnected
PU detection/PU stop selection". When RES signal and another input signal are simultaneously
input, the MC operation by the RES signal has a higher priority.
MC1 turns OFF at an inverter fault.
When Pr. 138 = "0 (electronic bypass invalid at a fault)", MC2 is OFF. When Pr. 138 = "1 (electronic
bypass valid at a fault)", MC2 is ON.
MC operation
 :
×:
⎯
:
Invariance:
5 - 336
Applied
Function
terminal
Selects whether or not
MRS
operation is available.
Inverter/commercial
power supply operation
CS
switchover
Inverter operation
command
STF
(Disabled during
(STR)
commercial power supply
operation)
Set one of Pr. 180 External thermal relay
to Pr. 189 to "7". input
RES
Operation status reset
Set "95" and "96"
Converter unit fault /
in any of Pr.180 Converter unit fault
(E.CPU, E.OHT)
to Pr.189.
MC-ON
MC-OFF
During inverter operation, MC2-OFF, MC3-ON
During commercial power supply operation, MC2-ON, MC3-OFF
The status before changing the signal ON or OFF is held.
Operation
MC1
ON ....... Electronic bypass
operation
available
OFF ...... Electronic bypass
operation not
available
ON ....... Inverter operation
OFF ...... Commercial power
supply operation
ON ....... Forward rotation
(reverse rotation)
OFF ...... Stop
ON ....... Motor normal
OFF ...... Motor fault
ON ....... Reset Invariance
OFF ...... Normal operation
X95 signal OFF,
X96 signal OFF
Converter fault
(E.OHT, E.CPU)
X95 signal ON,
X96 signal ON
Converter normal
X95 signal OFF,
X96 signal ON
Converter fault (other
than E.OHT or E.CPU)
Parameters
MC operation
MC2 MC3
⎯ ⎯


× Invariance
 
×
 
×
 
×
 
×
⎯ ⎯

× × ×
× Invariance
⎯ ⎯

× × ×
⎯ ⎯

⎯
×
×