Mitsubishi Electric FR-A820-00046 Instruction Manual page 95

Installation and wiring
Safety stop function operation
Internal
Input power safety circuit
status
OFF —
Normal
Normal
Normal
Normal
ON
Fault
Fault
Fault
Fault
Tab. 2-23: Description of Safety stop function operation
ON: Transistor used for an open collector output is conducted.
OFF: Transistor used for an open collector output is not conducted.
When not using the safety stop function, short across terminals S1 and PC, S2 and PC, and SIC and
SD to use the inverter. (In the initial status, terminals S1 and PC, S2 and PC, and SIC and SD are
respectively shorted with shorting wires.)
If any of the protective functions shown in the following table is activated, the terminal SO and
the SAFE output signal turn OFF.
Fault record
Option fault
Communication option fault
Parameter storage device fault
Retry count excess
Parameter storage device fault
Operation panel power supply
short circuit/
RS-485 terminal power supply
short circuit
24 V DC power fault
Safety circuit fault
Overspeed occurrence
Tab. 2-24:
If the internal safety circuit is operated normally, the terminal SO and the SAFE output signal remain
ON until E.SAF is displayed, and the terminal SO and the SAFE output signal turn OFF when E.SAF
is displayed.
SA is displayed when the terminals S1 and S2 are identified as OFF due to the internal safety circuit
failure.
If another fault occurs at the same time as E.SAF, the other fault can be displayed.
If another warning occurs at the same time as SA, the other warning can be displayed.
FR-A800
Output
,
Input terminal
terminal
S1 S2 SO
— — OFF
ON ON
ON
ON OFF
OFF
OFF ON
OFF
OFF OFF
ON
ON ON OFF
ON OFF OFF
OFF ON OFF
OFF OFF OFF
Operation panel
indication
E.OPT
E.OP1
E.PE
E.RET
E.PE2
E.CTE
E.P24
E.SAF
E.OS
Indication of internal safety circuit failures
Output
Inverter operation
signal
enable signal
SAFE
Output shutoff
OFF
(Safe state)
OFF Drive enabled
Output shutoff
OFF
(Safe state)
Output shutoff
OFF
(Safe state)
Output shutoff
ON
(Safe state)
Output shutoff
OFF
(Safe state)
Output shutoff
OFF
(Safe state)
Output shutoff
OFF
(Safe state)
Output shutoff
OFF
(Safe state)
Fault record
Speed deviation excess detection E.OSD
Signal loss detection
Excessive position fault
Brake sequence fault
Encoder phase fault
Magnetic pole position unknown E.MP
CPU fault
Internal circuit fault
Control circuit
Operation panel indication
E.SAF SA
Not displayed Not displayed
Not displayed Not displayed
Displayed Displayed
Displayed Displayed
Not displayed Displayed
Not displayed
Displayed
Displayed Displayed
Displayed Displayed
Displayed Displayed
Operation panel
indication
E.ECT
E.OD
E.MB1 to E.MB7
E.EP
E.CPU
E.5 to E.7
E.13
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