Operating Instructions (General); Basic Operation; Prior To Starting; Initial Check Sequence - Ingersoll Rand R4 Información Del Producto

EN

BASIC OPERATION


The language and units of measure displayed on the controller will be
preset before leaving the factory�� If these are required to be changed,
contact your local Ingersoll Rand service provider��

PRIOR TO STARTING


Check the coolant level by following the steps outlined in the Maintenance
Manual.
Ensure that the discharge air isolation valve is open. Switch on the main
electrical isolation switch. The control panel will illuminate, indicating that
the line and control voltages are available.
The contrast of the controller display may be adjusted by turning the small
screw which is on the right hand side of the controller when accessed
through the starter cabinet door.

INITIAL CHECK SEQUENCE


The controller will perform an initial check sequence if the compressor
receives initial power to the controller or has experienced a trip reset. While
the initial check sequence occurs, the controller will display a "Checking
Machine" message.
During the initial check sequence, the controller will check the control system
for proper operation. During this time, if any items are found inoperative, a
trip will occur and the compressor will not start.
After completion of the initial check sequence, the controller will then display
"READY TO START". This process should be completed within 10 seconds.

START SEQUENCE


For Variable Speed Drive (VSD) machines, the compressor will initially start
by the operator pressing the local start button or receiving a remote start
command. The compressor will start loaded and will ramp up the motor
speed to its minimum speed. Once the minimum speed has been achieved,
the compressor will begin to control pressure by using its speed regulation.
When the system pressure reaches the target pressure, the compressor will
start to slow. If the system pressure rises to the immediate stop pressure
setpoint, the compressor will stop. If the system pressure rises to the auto
stop setpoint and the compressor is at minimum speed, the compressor will
stop. When the machine stops, it will go through a blowdown sequence to
release pressure.
For Fixed Speed (FS) machines, the compressor will initially start when the
operator presses the start button or when the compressor receives a remote
start signal. The compressor will be automatically loaded/unloaded when
discharge pressure rises above/below the configurable setpoint. When the
machine stops, it will go through a blowdown sequence to release pressure.
During the first startup of the compressor, check for the proper
direction of rotation of the main motor, package fan motor, and dryer
condenser fan�� If the fan is not rotating in the direction indicated by
the rotation arrow decal, reverse two of the wires at the main power
supply or at the contactor in the package starter box�� Perform the
proper stop sequence and lockout/tagout the main electrical supply
before making changes to the wiring��
EN-8
RELEASED 16/Dec/2014 10:49:53 GMT

oPERATING INSTRUCTIoNS (General)

NOTICE
NOTICE

STOP SEQUENCE


The compressor can be stopped by a local or remote stop, a shutdown due
to a trip, or an emergency stop. All of the above conditions will cause the
compressor to stop immediately, except the local or remote stop. A local or
remote stop will open the blowdown valve and the compressor will run for
10 seconds before stopping. The machine must run unloaded for 10 seconds
prior to restarting.
If the compressor has to be stopped in an emergency depress the
emergency stop button located underneath the instrument panel��

EMERGENCY STOPPING


If the compressor has to be stopped in an emergency, press the emergency
stop button located underneath the instrument panel.
This will override the normal unload/stop button and will immediately stop
the compressor.
For Variable Speed Drive (VSD) machines, it is a normal situation that
drive cooling fan continues to run even when the drive is stopped��
And the fan can run even under an E-stop��

RESTARTING AFTER EMERGENCY STOPPING


If the compressor has been switched off because of a compressor
malfunction, identify and correct the fault before attempting to restart.
If the compressor has been switched off for reasons of safety, ensure that the
compressor can be operated safely before restarting.
Refer to the PRIOR TO STARTING and START SEQUENCE instructions earlier in
the section before restarting the compressor.
NOTICE
NOTICE
80448483 Rev.B