Mitsubishi Electric MELFA RH-FRH-D, Installation Description

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Connection EMERGENCY-STOP connection
FR series 4 - 13
4.3.3 Safety diagnosis function (Test pulse diagnosis)
This function enables diagnosis of external wiring by pulse signals output from the EMERGENCY-STOP
ports (EXTEMG11, EXTEMG21). Changing parameter TPOEMG allows EXTEMG11 and EXTEMG21 to
output off-pulses regularly. The width of output pulses is always approximately 20 ms. Checking reg-
ularly the test pulses inside the robot controller enables confirming the correct operation of the
EMERGENCY-STOP lines.
When using this function, connect emergency stop switches by seeing
Fig. 4-14 .
Make sure to prevent test pulses of this function from causing faulty operation of peripheral devices.
R002987E
Fig. 4-13:
Test pulse diagnosis
Item Description
Parameter name TPOEMG
Function This enables configuring the pulse output function for outputting test
pulse signals from emergency stop ports (EXTEMG11, EXTEMG21).
What parameter settings means 0: Outputs no test pulses
1: Outputs test pulses
Default 0
Tab. 4-2:
Parameter details
R002988E
Fig. 4-14:
How to wire emergency stop lines
Approx. 1000 ms
Approx.40 ms
Approx.
20 ms
Approx. 20 ms
EMERGENCY-STOP switches (2 contacts)
Robot controller