266 – SD Speed Demand
Red alarm.
Associated parameter 2.8006.586
Cause
Corrective action
Speed setting signal can no longer
be transmitted from plant.
1. Check Engine Control Unit setting (default setting is speed demand
via CAN bus).
2. Check signal and cabling between plant and ECU.
381 – AL Wiring TOP 1
Yellow alarm.
Associated parameter 2.8006.638
Cause
Corrective action
Short circuit or line break at
transistor output 1 system-side
(TOP 1). Activation of yellow
summary alarm faulty.
u
Check cabling (→ Page 201).
382 – AL Wiring TOP 2
Red alarm.
Associated parameter 2.8006.639
Cause
Corrective action
Short circuit or line break at
transistor output 2 system-side
(TOP 2). Activation of red
summary alarm faulty.
u
Check cabling (→ Page 201).
383 – AL Wiring TOP 3
Red alarm.
Associated parameter 2.8006.640
Cause
Corrective action
Short circuit or line break at
transistor output 3 system-side
(TOP 3). Activation of gas supply
solenoid valve No.1 faulty.
u
Check cabling (→ Page 201).
384 – AL Wiring TOP 4
Red alarm.
Associated parameter 2.8006.641
Cause
Corrective action
Short circuit or line break at
transistor output 4 system-side
(TOP 4). Activation of gas supply
solenoid valve No.2 faulty.
u
Check cabling (→ Page 201).
MS150104/02E 2016-11
| Troubleshooting | 135
TIM-ID: 0000038612 - 002
