ROBERTS GORDON
®
CORAYVAC
®
M
ODULATING
H
EATING
C
ONTROL
C
ONTROLLER
I
NSTALLATION
M
ANUAL
92
• Terminal connection for ELA-485 2 wire
• Terminal connection for ELA-485 4 wire
Wiring specifications
• A dedicated 24 AWG to 18 AWG twisted pair wire
(EIA-485)
• 2000’ (610 m) for 76.8 kbps
• 3000’ (914.4 m) for 9600 bps, 19.2 or 38.4 kbps,
before needing a Repeater
• Devices should be daisy chained.
• If the controller is at either end of a network seg-
ment, connect a Terminating Resistor (P/N
10061018) to the I/O Pro 812u control board.
Note:
Use the same polarity throughout the network
segment.
7. Turn on power to control board.
8. Set the correct network number to the unique
BACnet MS/TP network at the touch screen.
9. Set a unique Device Instance number.
NOTE:
The most common communication problems are the
result of not properly following the configuration
steps outlined. Review steps and use the following
list to check your settings.
Verify accuracy of the following:
Hardware settings for speaking BACnet MS/TP:
• Baud rate DIP switches 4 and 5
• Protocol DIP switches 6, 7, and 8 jumpers set to
half duplex (2-wire) and EIA-485
• Proper connection wiring
• Unique rotary address switches 1 – 99. If control-
lers have duplicate addresses, network communi-
cation can be lost.
• Unique BACnet Device Instance numbers. Default
is 24XX, with the rotary address switches defining
XX. If controllers have duplicate device instance
numbers, network communication can be lost.
NOTE:
• The controller recognizes physical changes (DIP
switches, rotary switches, and jumpers) upon
power up.
Содержание CORAYVAC
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Страница 69: ...SECTION 8 PROGRAMMING AND TROUBLESHOOTING THE SYSTEM 65 THIS PAGE LEFT INTENTIONALLY BLANK ...
Страница 71: ...SECTION 9 TROUBLESHOOTING 67 FIGURE 26 Vacuum pump does not turn on ...
Страница 73: ...SECTION 9 TROUBLESHOOTING 69 FIGURE 28 VFD showing a fault sign FIGURE 29 VFD input power issue ...
Страница 75: ...SECTION 9 TROUBLESHOOTING 71 FIGURE 31 Burner troubleshooting in manual mode ...
Страница 77: ...SECTION 9 TROUBLESHOOTING 73 After 45 second prepurge burners do not light continued ...
Страница 79: ...SECTION 9 TROUBLESHOOTING 75 FIGURE 34 APS does not close within 60 seconds after VFD receives run command ...
Страница 81: ...SECTION 9 TROUBLESHOOTING 77 FIGURE 36 Air Pressure Switch alarm ...
Страница 83: ...SECTION 9 TROUBLESHOOTING 79 FIGURE 38 Repeater troubleshooting ...
Страница 85: ...SECTION 9 TROUBLESHOOTING 81 BACnet MS TP troubleshooting continued ...
Страница 109: ...SECTION 13 TOUCHSCREEN TREE 105 Touchscreen Tree Overview continued ...
Страница 111: ...SECTION 13 TOUCHSCREEN TREE 107 FIGURE 47 Maintenance Unit FIGURE 48 Alarms ...
Страница 113: ...SECTION 13 TOUCHSCREEN TREE 109 FIGURE 51 Configuration Zones FIGURE 52 Configuration Unit ...
Страница 115: ...SECTION 13 TOUCHSCREEN TREE 111 FIGURE 55 Touchscreen System FIGURE 56 Touchscreen Setup ...
Страница 118: ...ROBERTS GORDON CORAYVAC MODULATING HEATING CONTROL CONTROLLER INSTALLATION MANUAL 114 ...
Страница 119: ...SECTION 14 THE ROBERTS GORDON CORAYVAC COMPLETE MODULATING HEATING CONTROL LIMITED WARRANTY 115 ...