Service manual

B - 100
Vission 20/20 • Operation and Service Manual •Vilter/Emerson • 35391SC 2.0
Appendix B • Vission 20/20 Application Procedures
• Statuses: Trip Status Word(s) – currently only 39 trips, so only Trip Status Words 1, 2 and 3 are used, with each
position indicating an trip (MSB to LSB [Bit 15, Bit 14, Bit 13, ... Bit 3, Bit 2, Bit 1, Bit 0]):
Word 1 Word 2 Word 3
Bit 0 = High Level Input Inhibit Bit 0 = High Discharge Temp. Trip Bit 0 = High Filter Differential
Inhibit
Bit 1 = Low Process Temp. Inhibit Bit 1 = Low Suction Pressure Trip Bit 1 = High Superheat Temp.
Inhibit
Bit 2 = High Discharge Pressure Inhibit Bit 2 = High Discharge Pressure
Trip
Bit 2 = High Superheat Start
Temp. Trip
Bit 3 = High Discharge Temp. Inhibit Bit 3 = Starter Shutdown Trip Bit 3 = High Superheat Rise Temp.
Trip
Bit 4 = Low Oil Separator Start Temp. Inhibit Bit 4 = Low Process Temp. Trip Bit 4 = High Superheat Run Temp.
Trip
Bit 5 = Low Suction Pressure Inhibit Bit 5 = Low Oil Separator Temp.
Trip
Bit 5 = Low Run Pressure Ratio Trip
Bit 6 = Low Suction Temp. Inhibit Bit 6 = High Oil Injection Temp.
Trip
Bit 6 = High Oil Separator Temp.
Trip
Bit 7 = High Oil Injection Temp. Inhibit Bit 7 = High Motor Current Trip Bit 7 = Unused
Bit 8 = Prelube Oil Pump Inhibit Bit 8 = Capacity Position Trip Bit 8 = Unused
Bit 9 = Compressor Interlock Inhibit Bit 9 = Volume Position Trip Bit 9 = Unused
Bit 10 = High Level Shutdown Trip Bit 10 = False Start Bit 10 = Unused
Bit 11 = Compressor Interlock Trip Bit 11 = Emergency Shutdown
Activated
Bit 11 = Unused
Bit 12 = Low Oil Pressure Trip Bit 12 = Oil Level #1 Inhibit Bit 12 = Unused
Bit 13 = Low Oil Injection Temp. Trip Bit 13 = Oil Level #1 Trip Bit 13 = Unused
Bit 14 = High Filter Differential Trip Bit 14 = Oil Level #2 Trip Bit 14 = Unused
Bit 15 = Low Suction Temp. Trip Bit 15 = Low Oil Level Trip After
Stop
Bit 15 = Unused
If control mode being set isn’t active in confi guration, command will result in error. This values are allowed to get
changed only when schedule is enabled
Compressor Scheduling: Hour INT – This values are allowed to get changed only when schedule is disabled
Compressor Scheduling: Minute INT – This values are allowed to get changed only when schedule is disabled