Principles of Operation
49
Haemonetics
®
ACP-215
®
Service Manual
P/N: SM-ACP215-01-EN(AB)
If the signal is still less than the acceptable calibration range after pressing
YES
, the line sensor is presumed defective. The following error message will
be displayed:
If the signal is still greater than the acceptable calibration after pressing
YES
,
the line sensor is presumed defective. The following error message will be
displayed:
DPM and SPM Initialization
Although not a test, it is important to know that the DPM and SPM offset values
are measured once again, and the values are stored in NVRAM. These values
are used to calculate actual pressure at the DPM or SPM during the
application.
Valve Tests
Each valve is sequentially toggled on and off, and several conditions are tested
during the valve transition. The valve position switch is monitored to confirm
that the valve actually moved when commanded to. Also, the valve current
feedback is monitored to confirm that the valve driver reduces the supplied
current after the valve transitions from closed to open (reduced current is used
to reduce current demand on the power supply and to keep the valve solenoids
cool). The following error message will be displayed if switch position
confirmation fails.
LINE SENSOR VOLTAGE TOO LOW
CODE = 50
PLEASE POWER OFF.
LINE SENSOR VOLTAGE TOO HIGH
CODE = 51
PLEASE POWER OFF.
RED VALVE POSITION FAULT
CODE = 12
PLEASE POWER OFF.
