Mitsubishi Electric 800 Series Instruction Manual page 7

Internal
Input safety Input terminal
power circuit
status
 
OFF
Normal ON
Normal ON
Normal OFF
Normal OFF
ON
Fault ON
Fault ON
Fault OFF
Fault OFF
 The terminal ON state shows that the terminal is conducted (the line is closed), and the OFF state shows that the terminal is
not conducted (the line is open).
 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 faults shown in the following table occurs, terminal So (SO) and the SAFE signal turn OFF.
Error definition
Option fault
Communication option fault
Internal storage device fault
Parameter storage device fault
(control circuit board)
Retry count excess
Parameter storage device fault
(main circuit board)
Operation panel power supply short circuit/
RS-485 terminals power supply short circuit
24 VDC power fault
Safety circuit fault
 When the internal safety circuit is operated normally (no faults occurs), terminal So (SO) and the SAFE signal remains ON
until "E.SAF" is displayed. Terminal So (SO) and the SAFE signal turns OFF when "E.SAF" is displayed.
 "SA" is displayed when terminals S1 and S2 are identified as OFF due to a fault occurred in the internal safety circuit.
 If another fault occurs when the fault E.SAF occurs, the other fault indication may be displayed.
 If another warning occurs when the warning SA occurs, the other warning indication may be displayed.
 The ON/OFF state of the output signal is the one for the positive logic. The ON and OFF are reversed for the negative logic.
 To assign the function of the SAFE signal to an output terminal, set either value shown in the following table in any of Pr.190
to Pr.196 (Output terminal function selection).
SAFE
 The use of SAFE signal has not been certified for compliance with safety standards.
NOTE
• The response time from safety stop signal input to drive shutoff (safe state) is faster than 8ms.
• Hold the ON or OFF status for 2 ms or longer to input signal to terminal S1 or S2.
Signal input shorter than 2 ms is not recognized.
Table 5 Truth table of safety related signals
Output
,
 
terminal
S1 S2 So (SO)

OFF
ON ON

OFF OFF
ON OFF
OFF ON

ON OFF
OFF OFF
ON OFF
OFF OFF
Operation panel indication
E.OPT
E.OP1 to E.OP3
E.PE6
E.PE
E.RET
E.PE2
E.CTE
E.P24
E.SAF
Output
signal
80
Output
Inverter
signal
running
, ,
  
status
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)
Error definition
Overspeed occurrence
Speed deviation excess detection
Signal loss detection
Excessive position fault
Encoder signal loss for orientation
Brake sequence fault
CPU fault
Encoder phase fault
Magnetic pole position unknown
Internal circuit fault
Pr.190 to Pr.196 settings
Positive logic
INSTALLATION AND WIRING
Operation panel
indication
E.SAF

Not Not
displayed displayed
Not Not
displayed displayed
Displayed Displayed
Displayed Displayed
Not
Displayed
displayed
Not
Displayed
displayed
Displayed Displayed
Displayed Displayed
Displayed Displayed
Operation panel indication
E.OS
E.OSD
E.ECT
E.OD
E.ECA
E.MB1 to E.MB7
E.CPU
E.5 to E.7
E.EP
E.MP
E.13
Negative logic
180
SA


7