Cosmo LS-R700 User Manual

9 Troubleshooting 111
9
3.4 ERROR 4 BAL1 Lost Test Pressure
Timing:
At the end of Equalization (BAL1)
Criteria:
Programmed Test pressure lower limit
Probable Cause
Treatment
Leaks from seals, part and fittings
Check the seals, part and fittings for possible leaks.
Fluctuation or wrong setting of the pilot pressure Adjust the pilot pressure between 400kPa and 700 kPa.
Avoid using air tools branching off the pressure source of the LS-R700 to
supply an stable air.
Setting up a dedicated pressure source for the LS-R700 is recommended.
Malfunction of the solenoid valve, SV4, or
air-operated valve, AV3.
Contact Cosmo for repair.
Output Signal Timing Chart
PIN#
Function TYPE WAIT DL1 PCHK PCHG PEXH CHG BAL1 BLW EXH END WAIT
Standard
D-SUB
1B
18
STAGE #0
NO
2B
17
STAGE #1
NO
3B
16
ERROR
NO
5B
14
PASS
NO
6B
13
UL FAIL
NO
9B
36
BUSY
NO
10B
35
END
NO
12B
33
LL2 FAIL
NO
13B
32
LL FAIL
NO
14B
31
UL2 FAIL
NO
3.5 ERROR 10 DPS Offset Error
Timing:
During power-on check procedure
Criteria:
Differential Pressure sensor (DPS) offset exceeds ±3% of its range.
Probable Cause
Treatment
Differential pressure sensor (DPS) offset is
out of range when the power is turned on.
Adjust the DPS offset.
Go to: Maint. > Inspection > Sensor > DPS
Contact Cosmo for repair if the offset exceeds ±30%.
Output Signal Timing Chart
PIN#
Function TYPE WAIT
Standard D-SUB
1B
18
STAGE #0
NO
2B
17
STAGE #1
NO
3B
16
ERROR
NO
5B
14
PASS
NO
6B
13
UL FAIL
NO
9B
36
BUSY
NO
10B
35
END
NO
12B
33
LL2 FAIL
NO
13B
32
LL FAIL
NO
14B
31
UL2 FAIL
NO
▼
During power-on check procedure
▼
At the end of BAL1

Cosmo LS-R700 Specifications

General

Brand	Cosmo
Model	LS-R700
Category	Test Equipment
Language	English