Mitsubishi Electric MDS-E Series Instruction Manual page 137

MDS-E/EH Series Instruction Manual
3 Safety Function
< Operation sequences example for dedicated wiring STO function >
SERVO ON
Servo OFF signal
SERVO OFF
STO1 signal
STO2 signal
Door close
Actual door
operation
Door open
CAUTION
1. Do not connect a cable to pin 1 and 2 of CN8. A malfunction or failure may result.
2. Input the STO signal during servo OFF.
POINT
1. For this function which inputs the STO signal directly to the drive unit, safety is ensured by inputting synonymous STO
signals redundantly to shut off the energy supply with the independent control.
2. Diagnosis for the input status of STO signal can be performed by using TOF signal.
IB-1501229-F
Input the STO signal in servo OFF status.
Drive unit detects dual signal warning A4(sub-number 0001)
by the STO signal input (power shutoff) state in servo OFF.
STO signal
switching
timing
106