Chapter 2 Wiring and Connection
2-32
2-9 Wiring of external emergency stop
2-9-1 External emergency stop setting
Besides the main emergency stop input from the CNC bus line (CN1A, CN1B), double-protection
when an emergency stop occurs is possible by directly inputting an independent external emergency
stop to the servo amplifier. Even if the main emergency stop is not input for some reason, the
contactors will be shut off within 30 seconds after the external emergency stop is input.
No.
Abbrevia-
tion
Parameter
name
Descriptions
SV036 PTYP
Regenerative
resistor type
Set the external emergency stop in the following parameters.
F E DCBA987654 3 2 10
amp rtyp emgx
bit Descriptions
4
Set the external emergency stop function. (Setting is prohibited for
values with no description.)
5 0 External emergency stop invalid
6 4 External emergency stop valid
7
emgx
CAUTION
Always input the external emergency stop to the servo amplifier controlling the
contactors.
POINT
1. When the SVJ2 controls the contactor, the external emergency stop input is
validated for the axis receiving the main circuit power supply from that
contactor. When the converter controls the contactor, use the external
emergency stop input of the converter.
2. So that the external emergency stop input will be an auxiliary input as much
as possible, always input the main emergency stop (NC bus line). An
external emergency stop error (alarm 55) will occur if only an external
emergency stop is input.
Mitsubishi NC
External emergency
stop input
MDS-B-SVJ2
CN1A CN1B
MDS-B-SVJ2
CN1A CN1B
10 VDD
5 COM
15 MC
CN3
Emergency
stop
Alarm
Emergency
stop
Alarm
3 SG
20 EMGX
Contactor shutoff
command
Contactor control axis
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