14 Description of Units and Circuit Boards
14.6Machine Safety Terminal Block Circuit Board (JANCD-YFC22-E)
14-21
182582-1CD
182582-1CD
MH900, DX200 Controller
14.6.2  External Emergency Stop
This signal is used to connect the emergency stop switch of an external 
device. If the signal is input, the servo power is turned OFF and the job is 
stopped. While the signal is input, the servo power cannot be turned ON. 
Fig. 14-13: Connection for External Emergency Stop
• Jumper cables are installed at the factory. Be sure to remove the 
jumper cables before using. 
If the cables are not removed, injury or damage to machinery may 
result and the external emergency stop will not work even if the signal 
is input.
5
6
7
8
CN219
DX200
EXESP_1-
EXESP_2+
EXESP_2-
EXESP_1+
 External emergency stop
Turn ON/OFF
at the same time
Remove the jumper cable
Machine safety terminal 
block circuit board
(JANCD-YFC22-E)