Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 95 / 1218

Installation and wiring Control circuit
FR-A800 2 - 65
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.
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.
Input power
Internal
safety circuit
status
Input terminal
,
Output
terminal
Output
signal
' *
Inverter operation
enable signal
Operation panel indication
S1 S2 SO SAFE
E.SAF
%
SA
&
OFF — — — OFF OFF
Output shutoff
(Safe state)
Not displayed Not displayed
ON
Normal ON ON
ON
OFF Drive enabled Not displayed Not displayed
Normal ON OFF
OFF OFF
Output shutoff
(Safe state)
Displayed Displayed
Normal OFF ON
OFF OFF
Output shutoff
(Safe state)
Displayed Displayed
Normal OFF OFF
ON ON
Output shutoff
(Safe state)
Not displayed Displayed
Fault ON ON OFF OFF
Output shutoff
(Safe state)
Displayed
Not displayed
$
Fault ON OFF OFF OFF
Output shutoff
(Safe state)
Displayed Displayed
Fault OFF ON OFF OFF
Output shutoff
(Safe state)
Displayed Displayed
Fault OFF OFF OFF OFF
Output shutoff
(Safe state)
Displayed Displayed
Tab. 2-23: Description of Safety stop function operation
Fault record
Operation panel
indication
Fault record
Operation panel
indication
Option fault E.OPT Speed deviation excess detection E.OSD
Communication option fault E.OP1 Signal loss detection E.ECT
Parameter storage device fault E.PE Excessive position fault E.OD
Retry count excess E.RET Brake sequence fault E.MB1 to E.MB7
Parameter storage device fault E.PE2 Encoder phase fault E.EP
Operation panel power supply
short circuit/
RS-485 terminal power supply
short circuit
E.CTE
Magnetic pole position unknown E.MP
CPU fault
E.CPU
24 V DC power fault E.P24 E.5 to E.7
Safety circuit fault E.SAF Internal circuit fault E.13
Overspeed occurrence E.OS
Tab. 2-24: Indication of internal safety circuit failures