MDS-E/EH Series Instruction Manual
12 Appx. 3: Protection Function
485
IB-1501229-F
12.2 Emergency Stop Observation
The double-protection for the emergency stop signal is provided and observes whether any abnormality is found in the
emergency stop signal. The whole system will be in the emergency stop state when one emergency stop signal is in
open state.
(1) Input circuit of an external emergency stop
Besides the emergency stop input from the NC controller, double-protection when an emergency stop occurs can
be provided by directly inputting an external emergency stop to the CN24 connector on the power supply unit. Even
if the emergency stop is not input from CNC for some reason, the contactors will be shut off by the external
emergency stop input from CN24 connector on the power supply unit.
(a) Connection
(b) Rotary switch setting
When using the external emergency stop, the rotary switch on the front of the power supply unit must be set.
- Rotary switch setting: 4
CAUTION
1. The emergency stop signal input to the CNC side cannot be used as a substitute for the external emergency stop
function (CN9B).
2. To provide double-protection when an emergency stop occurs, the emergency stop input of NC and the external
emergency stop input of drive unit are always wired from same emergency stop switch.
3. The external emergency stop function is a function which helps the NC emergency stop.
CN1A
CN4
CN4
1A
EMG2
4A EMG1
CN23
CN24
OPTH1
3
MC2
2
(NC)
1
MC1
EMG
MDS-E/EH-V1/V2/V3/SP/SP2
MDS-E/EH-CV
SH21 cable
(24VDC)
External emergency
stop switch
External emergency stop input
Mitsubishi NC
G380 cable
Alarm
Emergency
stop
Optical
communication
Emergency
stop
Alarm
Contactor shutoff
command
Summary of Contents for MDS-E
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Page 32: ...1 IB 1501229 F 1 Installation ...
Page 76: ...45 IB 1501229 F 2 Wiring and Connection ...
Page 132: ...101 IB 1501229 F 3 Safety Function ...
Page 142: ...111 IB 1501229 F 4 Setup ...
Page 277: ...MDS E EH Series Instruction Manual 4 Setup 246 IB 1501229 F ...
Page 278: ...247 IB 1501229 F 5 Servo Adjustment ...
Page 351: ...MDS E EH Series Instruction Manual 5 Servo Adjustment 320 IB 1501229 F ...
Page 352: ...321 IB 1501229 F 6 Spindle Adjustment ...
Page 404: ...373 IB 1501229 F 7 Troubleshooting ...
Page 455: ...MDS E EH Series Instruction Manual 7 Troubleshooting 424 IB 1501229 F ...
Page 456: ...425 IB 1501229 F 8 Maintenance ...
Page 475: ...MDS E EH Series Instruction Manual 8 Maintenance 444 IB 1501229 F ...
Page 476: ...445 IB 1501229 F 9 Power Backup System ...
Page 494: ...463 IB 1501229 F 10 Appx 1 Cable and Connector Assembly ...
Page 504: ...473 IB 1501229 F 11 Appx 2 D A Output Specifications for Drive Unit ...
Page 514: ...483 IB 1501229 F 12 Appx 3 Protection Function ...
Page 523: ...MDS E EH Series Instruction Manual 12 Appx 3 Protection Function 492 IB 1501229 F ...
Page 524: ...493 IB 1501229 F 13 Appx 4 Compliance to EC Directives ...
Page 528: ...497 IB 1501229 F 14 Appx 5 EMC Installation Guidelines ...
Page 540: ...509 IB 1501229 F 15 Appx 6 Higher Harmonic Suppression Measure Guidelines ...
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