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MITSUBISHI CNC
90
4.2.9 Connecting with Safety Observing I/O Device
Connect safety observing I/O device as the example below. (Below is an example where an MDS-DJ series drive unit is
used.)
Safety observing functions follow "IEC61800-5-2/EN61800-5-2", and safety of the functions complies with "EN
ISO13849-1:2008 (PL d, Category 3)". However, make sure to check the safety of the machine by using "risk
assessment".
With this function, the following executions can be realized.
(1) Open the door without shutting the motor drive power OFF.
(2) Operate under the safety speed or lower while the door is opened.
Refer to the "Safety Handbook (Original Instructions)" (IB-1501025) for the details of the connection with the safety
observing I/O devices.
Refer to the instruction manual of the drive unit for the details of the connection with the drive unit.
MC
24V
MC
24V
R
MC_dp1
MC_dp2
T
R
S
MC_ct1
DOOR1
COM
NFB
Remote I/O
unit
Contactor AC reactor
Relay
Contactor
Door open/close
check sensor
RIO
EMG
L1 L2 L3
G
L11
L21
MC
DOCOM
EMG
R
DC24V
EMG
24V
NC
Control unit
Drive unit
Relay