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

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INTERFACE BOARD TEST FOR PRESSURE SENSOR
FAILURE
Shut downs may occur that display an error code of -06- and -12-. 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 0 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.
NUISANCE SHUTDOWNS ON 12
Certain SSR 10-40 units may not develop adequate sump pressure of 10 psi (or
more) within 3 seconds of a manual start up. When this happens the unit shuts
down and indicates -12- (reverse rotation) on the display even though rotation
is correct.
To help alleviate this potential situation, we are revising the logic within the
Intellisys to look for a positive pressure within 3 seconds of start up. This will
eliminate the nuisance shutdown on -12- in these instances.
To secure this new revision level Intellisys Controller, order kit 39679097. This
is for a factory re-manufactured controller and should be used when making
warranty repairs. We also have the capability of programming into the controller
appropriate load and unload hours to match units operating in the field. Specify
this requirement with your order if it is an important consideration.
Keep in mind that the parts manual also lists a new controller, order kit
39668793. It will also have the new software feature described above, but with
zero hours running time. When making field repairs, it is necessary to order
gasket P/N 39786413. (Included in kits)
An order must be placed on Davidson for these parts, and the controller will be
shipped out of Davidson.
Units shipped after January 2, 1990 will have the reverse rotation revision
described above. Units manufactured prior to this date will not have the feature
described.
SSR 10 - 40 LOW VOLTAGE CONDITIONS
The Intellisys System provides a more accurate method of monitoring input
electrical voltage to the controller than any hand held voltmeter. Conditions
that allow the incoming electrical power to the controller to drop to 97 volts or
less will shut the compressor unit down within 1 electrical cycle.
-26-
-25-
Conditions that may contribute to low voltage would be undersize wiring,
incorrect or undersize step down transformer or undersize buck boost
transformers.
SSR 10-40 HORSEPOWER
NUISANCE -01- SHUTDOWN PROBLEM
Presently, the starter auxiliary contact is used by the controller to determine
starter operation.
It has been determined that the auxiliary contact may be one of the causes of
Nuisance -01- Shutdowns.
Due to vibration and/or corrosion, these contacts can momentarily open causing
the -01- shutdown.
The solution to this problem is to use both sets of normally open contacts. This
can be accomplished by adding two jumpers to the auxiliary contact. (See
Picture)