MTU 12V4000M*3 series Operating Instructions Manual page 208

405 – AL Open Load Digital Input 6
Line disruption on digital input 6
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
406 – AL Open Load Digital Input 7
Line disruption on digital input 7
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
407 – AL Open Load Digital Input 8
Line disruption on digital input 8
Yellow alarm; warning
Cause
Wiring faulty.
No resistance over switch.
408 – AL Open Load Emerg. Stop Input ESI
Line disruption at input for emergency stop
Yellow alarm; warning
Cause
Wiring faulty or no resistance over
switch.
206 | Troubleshooting | MS15036/00E 2018-08
ZKP-Number: 2.8006.630
Corrective action
1. Check wiring (→ Page 346).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.631
Corrective action
1. Check wiring (→ Page 346).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.632
Corrective action
1. Check wiring (→ Page 346).
2. Check target device input.
3. Contact Service.
ZKP-Number: 2.8006.633
Corrective action
1. Check wiring (→ Page 346).
2. Check target device input.
3. Contact Service.