Ingersoll-Rand Intellisys SSR 10-40, Руководство для обслуживающего персонала

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In this case, check the male-female connection on the end of the sensor. Also
disassemble the male cable and insure that all wires are intact as was done for
fault number -04-.
Check for continuity on each wire of the cable after disconnecting it from the
interface board.
Just follow the color codes of the wires.
The most common-06-failure is a result of not having 15 pounds of sump
pressure in 10 seconds after start-up. This can be caused by a small air leak in
the tubing attached to the line sump solenoid valve or failure of the valve to
toggle. First check for leaks and check the solenoid for proper operation
including the presence of moisture or dirt in the solenoid orifice.
After checking the pressure transducer calibration and its cable for shorts, the
following procedure will tell you if the circuit through the interface board is
defective.
1. Disconnect the five leads from the pressure transducer cable at the
interface board (terminals 23 through 27).
2. Install a jumper between terminals 23 and 25.
3. With the controller in the ready to start mode (0 in the display window),
press the Step Up and Down arrows at the same time (once).
4. If an O shows in the display window the circuit through the Interface Board
is OK. If a -06-shows in the window, the board is defective and should
be replaced.
MESSAGE -07- EMERGENCY STOP
The emergency stop switch contains 2 sets of contacts. One set of contacts
completely breaks the 115 control voltage. The other set of contacts supplies
a signal to the Intellisys controller that the switch has been pressed. This display
is telling you that the switch has been pressed. To clear the emergency stop
switch, rotate the switch, clockwise, hit set twice, which resets zero in the
display. The compressor will be ready to start again.
If “set” does not clear, change the Intellisys controller.
MESSAGE -08- EMERGENCY STOP BUTTON ENGAGE
The emergency stop switch supplied with the Intellisys controller is a twist to
unlock unit. This fault appears when the-07-message appears and the operator
has pressed the set switch to clear it without disengaging the stop switch. When
still engaged, the Intellisys controller will scan the contacts and realize that it is
still depressed and will not allow starting.
To correct this, the emergency stop switch must be disengaged.
MESSAGE -09- MICROPROCESSOR FAILURE
The CPU Printed Circuit Board Assembly contains a circuit called the watchdog.
The way the watchdog functions is that on each cycle of the program, it signals
the watchdog that it is functioning OK. The watchdog starts a timer. If before
the timer times out, the program has not come back and signaled the watchdog,
the watchdog shuts the unit down as a microprocessor failure. It may or may not
be a true indication of a failure. In the event of an -09- signal, please follow the
following steps.
First disconnect power to the unit by opening the disconnect switch.
Re-energize the unit and look at the display. The display should come up all 8’s
with all the lights lit. As we stated earlier in this training, that means that the
microprocessor is OK.
Press set to clear the unit and press start to start the compressor. If on power-
up, any of the lights do not come up or any of the 8’s do not come up, it indicates
that there is a potential microprocessor failure.
To confirm a -09- message disconnect the wires from terminals 9 and 10 on the
starter interface board. Connect a 115 volt extension cord and plug it into a
nearby wall outlet. Reset the Intellisys as stated earlier. If Intellisys functions
okay the problem is in the incoming power. If the Intellisys shuts down with -09-
, change the Intellisys.
MESSAGE -10- REMOTE STOP ENGAGE
The above feature tells the operator that the unit has a remote start and stop
feature installed. The fault occurs when the remote stop button is open or a
remote wire is loose, open or broken.
MESSAGE -11- LOW VOLTAGE
The Intellisys System provides a more accurate method of monitoring input
electrical voltage to the controller than any hand held meter. Conditions that
allow the incoming electrical power to the controller to drop to 85% of 115 volts
or less will shut the compressor down within one electrical cycle. Should this
fault occur, check the line voltage for a value.
Conditions that may contribute to low voltage would include undersize wiring,
incorrect or undersize step down transformer or undersize step up/step down
transformer.
Open the compressor disconnect switch, and lock and tag the panel prior to
changing any wiring. One test that can be performed is to remove the 115 volt
power from the transformer, at terminal 9 and 10 on the interface board. Tape
the wire for safety. Be sure to supply the positive lead to terminal 10 on the
interface board. Failure to do this will damage the board. Re-apply power, set
0 in the display and try to restart the compressor. If the Intellisys unit powers up
and the compressor can be operated in a normal manner this indicates that the
primary and secondary voltages were too low and must be corrected.
Below 80 volts the display will show blinking 8888’s and the green LED light will
also blink.
-11-
-12-