Control circuit
55
2
Safety stop function operation
∗1
ON: The transistor is conducted. OFF: The transistor is not conducted.
∗2
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.)
∗3
If any of the faults shown in the following table occurs, terminal So (SO) and the SAFE signal turn OFF.
∗4
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.
∗5
SA is displayed when terminals S1 and S2 are identified as OFF due to the internal safety circuit failure.
∗6
If another fault occurs at the same time as E.SAF, the other fault can be displayed.
∗7
If another warning occurs at the same time as SA, the other warning can be displayed.
∗8
The table shows the signal status in positive logic. In negative logic, the signal status is opposite.
∗9
For SAFE signal, refer to the following table and assign the function by
Pr.190 to Pr.196 (output terminal function selection)
.
∗10
The use of SAFE signal has not been certified for compliance with safety standards.
For more details, refer to the Safety Stop Function Instruction Manual.
Find a PDF file of the manual in the CD-ROM enclosed with the product.
Input
power
Internal safety
circuit status
Input terminal
,
Output
terminal
Output
signal
Inverter running
status
Operation panel
indication
S1
S2
So (SO)
SAFE
SA
OFF
―
―
―
OFF
OFF
Output shutoff (Safe state) Not displayed Not displayed
ON
Normal
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
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
Fault type
Operation panel
indication
Option fault
E.OPT
Communication option fault
E.OP1 to E.OP3
Parameter storage device fault (control
circuit board)
E.PE
Retry count excess
E.RET
Parameter storage device fault (main circuit
board)
E.PE2
Operation panel power supply short circuit/
RS-485 terminals power supply short circuit
E.CTE
24 VDC power fault
E.P24
Safety circuit fault
E.SAF
Overspeed occurrence
E.OS
Speed deviation excess detection
E.OSD
Signal loss detection
E.ECT
Encoder phase fault
E.EP
CPU fault
E.CPU
E.5 to E.7
Internal circuit fault
E.13
Fault type
Operation panel
indication
Output
signal
Pr.190 to Pr.196 settings
Positive logic
Negative logic
SAFE
80
180
Summary of Contents for FR-A842-07700
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