Komatsu PC5500-6 Operation & Maintenance Manual page 165

OPERATION
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y6b-1 VALVE FAN DRIVE 1 OIL COOLER
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 1 oil cooler
| 0 | 1 |
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y6b-2 VALVE FAN DRIVE 2 OIL COOLER
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 2 oil cooler
| 0 | 1 |
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y7 VALVE CLS PUMP ON / Y7a VALVE CLS RELIEF
-4- Output signals
| OPERATE KEY SWITCH
-4- CLS pump ON Y7 (A5.7):
| 0 | 1 | CLS relief Y7a (A13.1):
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y9 VALVE SLS PUMP ON / Y9a VALVE SLS RELIEF
-4- Output signals
| OPERATE KEY SWITCH
-4- SLS pump ON Y9 (A5.8):
| 0 | 1 | SLS relief Y9a (A13.2):
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y14a-1 VALVE FAN DRIVE 1 RADIATOR
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 1 radiator
| 0 | 1 |
Level 4: Inputs - Outputs / DIGITAL-OUTPUTS
/ Y14a-2 VALVE FAN DRIVE 2 RADIATOR
-4- Output signals
| OPERATE KEY SWITCH
-4- Valve fan drive 2 radiator
| 0 | 1 |
(medium speed)
Y6b-1 (A3.3):
(medium speed)
Y6b-2 (A3.4):
(minimum speed)
Y14a-1 (A3.5):
(minimum speed)
Y14a-2 (A3.6):
3.4 ELECTRONIC MONITORING AND CONTROL SYSTEM ECS
165