IRN37 - 160K - CC & IRN50 - 200H -CC & IRN75 - 160K - 2S & IRN100 - 200H - 2S & R190-225NE
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EN
9.0 OPERATING INSTRUCTIONS
Start sequence
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, if the blowdown mode is set to off, the compressor
will stop. However if the blowdown mode is set to on, the
compressor will open the blowdown valve for up to 10
seconds or until the pressure in the separator tank falls
to 2.4 Bar (35 psi) before stopping. The compressor will
restart once the system pressure falls below the target
pressure.
Stop sequence
The compressor can be stopped by a local or remote
stop, a shutdown due to an alarm 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 up to 10 seconds or
until the pressure in the separator tank falls to 35 psi
before stopping. The compressor will stop if the system
pressure reaches the automatic stop or immediate stop
pressure setpoints. However, if the compressor stops for
this reason, it will automatically restart when the system
pressure falls below the target pressure.
The R190-225NE compressor will operate for 30 seconds
with the blowdown valve open and at reduced speed
before stopping. This sequence occurs for local or
remote stops and when the system pressure reaches the
automatic or immediate stop pressure setpoints. The
compressor will automatically restart when the system
pressure falls below the target pressure.
Important:
Depress the emergency stop button when
the compressor must be stopped immediately.
Blowdown mode
All two stage compressors will blowdown when
compressor is signalled to stop. Intellisys indicates that
Blowdown Mode is ”not installed”.
If the blowdown mode is set to on, the compressor will
open the blowdown valve anytime that it stops. This will
release pressure from the airend and separator tank. If
the blowdown mode is set to off, the blowdown valve
will remain closed when the compressor stops due to an
automatic stop.
Blower control N37/160K-1S, N50/200H-1S &
N75/160-2S, N100/200H-2S
Fan control R190-225NE
The blower speed varies in some conditions to assist in
controlling the coolant injection temperature. The blower
motor has its own variable speed drive and will ramp up
and down as the compressor starts and stops.
Stopping the machine in an emergency
If the machine has to be stopped in an emergency
DEPRESS THE EMERGENCY STOP BUTTON LOCATED
UNDERNEATH THE INSTRUMENT PANEL.
This will over-ride the normal unload/stop button and will
immediately stop the machine.
Restarting after an emergency
If the unit has been switched off because of a machine
malfunction, identify and correct the fault before
attempting to restart.
If the unit has been switched off for reasons of safety,
ensure that the machine can be operated safely before
restarting.
Refer to the
PRIOR TO STARTING
and
START SEQUENCE
instructions earlier in this section before restarting the
machine.
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Содержание IRN100-200H-2S
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