Mitsubishi Electric SD Series - Safety Circuits

Safety circuits Connection
4 - 10
4.4 Safety circuits
Example 1
The following figure provides an example of the configuration of a safety circuit when using two
control units, one external power supply, one door closing contact and one activation unit.
R001514E
Fig. 4-11: Configuration of a safety circuit (Example 1)
NOTE
To facilitate clarity, some information has been omitted from the figure; the figure therefore
deviates from the actual conditions of the product.
1A/1B
2A/2B
3A/3B
4A/4B
5A/5B
6A/6B
8A/8B
9A/9B
1A/1B
2A/2B
3A/3B
4A/4B
10A/10B
11A/11B
5A/5B
6A/6B
EMGIN1/2
EMGIN1/2
EMGOUT1/2
EMGOUT1/2
}
}
1A/1B
2A/2B
3A/3B
4A/4B
5A/5B
6A/6B
8A/8B
9A/9B
1A/1B
2A/2B
3A/3B
4A/4B
10A/10B
11A/11B
5A/5B
6A/6B
EMGIN1/2
EMGIN1/2
EMGOUT1/2
EMGOUT1/2
}
}
RA
RA
RA
RA
RA
RA
RA
RA
RA
RA
RA
RA
Control unit 1
Control unit 2
EMERGENCY-
STOP
EMERGENCY-
STOP
Internal
safety
circuit
Control output
Auxiliary axles
EMERGENCY-
STOP
EMERGENCY-
STOP
Internal
safety
circuit
Control output
Auxiliary axle
Unassigned
Unassigned
Input
door contact
Error
output
including
SW EMERGENCY-STOP
Output for
operating
Activation unit
External
EMERGENCY-
Input
door contact
Error
output
including
SW EMERGENCY-STOP
Output for
operating
Activation unit input
Bridge
Peripheral units
Internal
safety
circuit
Output for
door contact
Door
Monitor
Monitor
Fuse
Fuse
positively
driven
positively
driven
Output for
system
EMERGENCY-STOP
(to be provided by