Safety Stop Function - Mitsubishi Electric FR-E720-0.1KNC Instruction Manual

Control circuit specifications
2.3.4

Safety stop function

(1) Description of the function
The terminals related to the safety stop function are shown below.
Terminal Symbol
S1
∗1
S2
∗1
PC
∗1
SAFE
Y0 or virtual
signal
terminal of CC-Link
SAFE2
communication
∗2
signal
SE
∗1
In the initial status, terminals S1 and S2 are shorted with terminal PC by shortening wire. Remove the shortening wire and connect the safety relay module
when using the safety stop function.
∗2
Inverter running (RUN signal) is assigned to the terminal Y0 in the initial status. (Refer to page 167)
∗3
To use the SAFE signal, set "80 (positive logic) or 180 (negative logic)" in any of Pr. 190 to Pr. 192 or Pr. 313 to Pr. 315 (Output terminal function selection) to
assign the function. (Refer to page 167)
∗4
To use the SAFE2 signal, set "81 (positive logic) or 181 (negative logic)" in any of Pr. 190 to Pr. 192 or Pr. 313 to Pr. 315 (Output terminal function selection) to
assign the function. (Refer to page 167)
∗5
At an internal safety circuit failure, one of E.SAF, E.6, E.7, and E.CPU is displayed on the operation panel.
......
Specifications differ according to the date assembled. Refer to page 275 to check the SERIAL number.
NOTE
Hold the ON or OFF status for 2ms or longer to input signal to terminal S1 or S2. Signal input shorter than 2ms is not
recognized.
Use SAFE signal to monitor safety stop status. SAFE signal cannot be used as safety stop input signal to other
devices (other than the safety relay module).
SAFE 2 signal can only be used to output an alarm or to prevent restart of an inverter. The signal cannot be used as
safety stop input signal to other devices.
(2) Wiring connection diagram
To prevent restart at fault occurrence, connect terminals Y0 (SAFE 2 signal) and SE to terminals XS0 and XS1, which are
the feedback input terminals of the safety relay module.
By setting Pr. 190 RX2 (terminal Y0) function selection = "81 (SAFE2 signal)", terminal RUN is turned OFF at fault occurrence.
Emergency
stop button
X0
+24V
DC24V
24G
MITSUBISHI MELSEC Safety relay module
NOTE
Changing the terminal assignment of SAFE or SAFE2 signal using Pr. 190 RX2 (terminal Y0) function selection may affect
the other functions. Set parameters after confirming the function of terminal Y0.
24
For input of safety stop channel 1.
For input of safety stop channel 2.
Common terminal for terminal S1 and S2.
Outputs the safety stop status.
The signal is output when inverter output is shut off
∗3
due to the safety stop function.
Outputs when an alarm or failure is detected.
The signal is output when no internal safety circuit
∗4
failure exists.
∗5
Common terminal for open collector outputs (terminal Y0)
START/RESET
COM0 X1 COM1 XS0 XS1 Z00
K1
Internal
Safety
Circuit
K2
Z01
QS90SR2SN-Q
Description
Y0 (SAFE2)
*1
SE
PC
S1
S2
Z10 Z20
Z11 Z21
*1 Output signals differ by the setting of Pr. 190 RX2
(terminal Y0) function selection.
Between S1 and PC / S2 and PC
Open: In safety stop state.
Short: Other than safety stop state.
OFF: Drive enabled or drive stop (at an internal
safety circuit failure )
∗5
ON: Drive stop (no internal safety circuit failure
OFF: Internal safety circuit failure
ON : No internal safety circuit failure
R S T
Inverter
I/O control
Output shutoff
circuit
U V W
)
∗5
∗5
∗5
IM