Mitsubishi Electric FR-D720S SC EC Instruction Manual page 59

Wiring
Wiring connection diagram
To prevent restart at fault occurrence, connect terminals RUN (SAFE2 signal) and SE to ter-
minals XS0 and XS1, because polarity of XS0 is positive, and polarity of XS1 is negative.
To prevent restart at fault occurrence, connect terminals RUN (SAFE2 signal) and SE to ter-
minals XS0 and XS1, which are the feedback input terminals of the safety relay module.
By setting Pr.190 to "81" (SAFE2 signal), terminal RUN is turned OFF at fault occurrence.
Pr. 178 = 60 (initial value)
Pr. 179 = 25
Pr. 190 = 81
Pr. 197 = 80 (initial value)
24V DC
Fig. 3-15: Connecting the Safety relay module QS90SR2SN-Q of Mitsubishi
NOTE
Changing the terminal assignment using Pr. 190, Pr. 192 or Pr. 197 may affect the other
functions. Make setting after confirming the function of each terminal.
After the power-up, to reset the safety stop mode, press the START switch, and also press the
STF switch, then start the motor rotation. In the above wiring example, the motor rotation will not
occur in the event of reset of 'safe-condition' until STF is pressed.
b
CAUTION:
To prevent restart in case of recovering from input power loss of drive, 3-wired
connection for STF/STOP control is recommended. In case of 2-wire connection and
using latching type switch to short between STF and PC for starting, ensure the
compliance with safety requirement for the restarting when the drive recover from
input power loss.
FR-D700 SC EC
START/RESET
Emergency stop
button
+24V X0 COM0 X1 COM1
Internal safety
circuit
24G
Safety relay module
MITSUBISHI MELSEC
QS90SR2SN-Q
SO (SAFE)
Monitor
RUN (SAFE2)
STF
STR (STOP)
STOP
XS0 XS1 Z00 Z10 Z20
K1
K2
Z01 Z11 Z21
Control circuit specifications
R/L1
Inverter
SE
I/O control
S1
Output shutoff
S2 circuit
SC
PC
Output signals differ by the setting of Pr. 190, Pr. 192
and Pr. 197.
Input signals differ by the setting of Pr. 178 to Pr. 182.
S/L2 T/L3
U V W
M
3~
I002074E
3 - 23