Section VIII - Power$ync II™ Operation
Press the UP arrow key at Network Diagnostic Menu 3 to display the network diagnostic screen:
A:T5L09 B:T4L09 C:TOL00 D:T4L05
E:TOL00 F:TOL00
NETWORK CONNECTION DATA CONFIDENCE
This display gives an overall view of network operations. The letter to the left of the colon is the machine ID. To the right of the colon is the letter T followed by a number and the letter L followed by a number. The T number reflects the condition of the countdown timer. If valid communication between machines is not maintained, this timer will begin to count down from 5. As soon as communications can be confirmed, the counter is reset. The control is designed to deal with a certain degree of miscommunication. A well connected and communicating network will show the numbers 4 or 5 after the T. If the T number is 3 or less, communication to that particular compressor is not satisfactory. To the right of the timer number is the list state number. A number from 00 to 09 indicates the operating state of the compressor. Any other number should be disregarded. Other numbers may be displayed when another machine on the network is being started. The different operating states indicated by these numbers are: 00 - Trim control for the network has passed to the left. This will usually indicate a machine that is in the process of timing out and shutting down, is already shut down or is not scheduled to be operating.
01 - Trim control for the network has passed to the left.
02 - Trim control for the network is currently being passed to the left.
03 - 07 - Trim control for the network is at this machine.
08 - Trim control for the network is currently being passed to the right.
09 - Trim control for the network has passed to the right.
The example shown indicates that the ‘A’ machine is running fully loaded and has passed trim control to the right in the sequence, the ‘B’ machine is running fully loaded and has also passed trim control to the right in the sequence and the ‘D’ machine has trim control. The ‘C’ machine is either not in the scheduled sequence or the power to that machine has been turned off. The T numbers, 4 and 5, show that the network is communicating well with the three operating machines. This display also shows that there is no communication with any of the other possible network nodes.
NETWORK DIAGNOSTIC MENU 5
NETWORK LOAD DELAY TIME ______ XX
(SECONDS)
UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU
This menu shows the time, in seconds, that the compressor will delay in passing the pointer downward. This is to allow pressure fluctuations time to level out, if there is a drop in pressure.
Press ENTER to return to the Compressor Diagnostic Menu.
Press F3 to enter the Transducer Parameter Check Menu. This menu allows diagnostics of possible faults in the pressure and temperature transducers by providing an indication of their operating condition.
**PACKAGE DISCH PRESSURE TRANSDUCER** A/D CONVERTER READING______ OFFSET______
COMPUTED PRESSURE READING______
UP FOR NEXT MENU/DOWN FOR PREVIOUS MENU
A/D CONVERTER READING shows the voltages present at the input on the A/D converter on the board. The pressure transducers provide a voltage input which are measured at the input connectors (second pin from top at each connector). These voltages should match reasonably closely. The offset shows how far the voltage is OFF from the ideal value. The computed reading shows the value that the electronic control will display. It will show decimal values and negative values, if present. This is valuable in verifying that a zero pressure reading is correct.
Quincy Compressor® - QSD™ | 57 |
|
|
