9 Troubleshooting 109
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3.1 ERROR 1 PS Offset Error
During power-on check procedure
Pressure sensor (PS) offset exceeds ±2% of its range.
Test pressure sensor (PS) offset is out of
tolerance when the power is turned on.
Adjust the PS offset.
Go to: Maint. > Inspection > Sensor > PS(P1)
Contact Cosmo for repair if the offset exceeds ±2% of the sensor range.
Output Signal Timing Chart
Function TYPE WAIT
1B 18 STAGE #0 NO
3.2 ERROR 2 PS Out of Range
At the end of Pressurization (CHG) or Precharge (PCHG) stage
Test pressure exceeds the sensor range in CHG or PCHG stage.
Test pressure sensor (PS) was pressurized
exceeding the sensor full-scale.
Adjust the test pressure.
Pay extra attention for low pressure models.
Test pressure sensor (PS) offset is out of tolerance. Adjust the PS offset.
Go to: Maint. > Inspection > Sensor > PS (P1)
Cable disconnection or malfunction of the test
pressure sensor (PS)
Adjust the PS offset.
Go to: Maint. > Inspection > Sensor > PS(P1)
Contact your local Cosmo representative if the offset exceeds ±2% of the
Malfunction of the test pressure sensor (PS)
Contact Cosmo for repair if the offset exceeds ±2% of the sensor range.
Output Signal Timing Chart
PIN#
Function TYPE WAIT DL1 PCHK
PCHG
PEXH
CHG BLW EXH END
WAIT
1B 18 STAGE #0 NO
6B 13 UL FAIL
NO
During power-on check procedure
▼ ▼ At the end of PCHG or CHG
When the error
occurred in PCHG,
stages only in grey are
applicable but when it
occurred in CHG
stage, the stages in
shadowed are also
applicable as well.
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