Operation Check For Master Valve - YASKAWA MOTOMAN-MPX2600 Instructions Manual

MPX2600

10.3.1.5 Operation Check for Master Valve

Fig. 10-15: Operation Check for Master Valve
While purging, air is also
exhausted from pressure
adjusting valve exhaust side
10 Maintenance and Inspection
10.3 Inspection of the Explosion-Proof Device
1. Turn OFF the power supply to the DX200.
2. Unscrew the hexagon socket head cap screws to remove the pressure
unit cover. (Refer to Fig. 10-10 "Pressure Switch Unit Cover".)
3. Set the pressure of operation air reducing valve as shown in Table
10-14 "List of Setting Value for Pressure Reducing Valve for Purging
Pressure and Operating Pressure".
Refer to section 10.3.1.2 "Operation Method of Pressure Reducing
Valve" for the pressure reducing valve operation.
Table 10-14: List of Setting Value for Pressure Reducing Valve for Purging
Pressure and Operating Pressure
Pressure reducing valve
for purging pressure
Pressure reducing valve
for the operating pressure
4. Re-start the DX200 and check that purging operation starts a few
seconds later.
5. While purging, check that air is exhausted from the master valve
exhaust port. Note that air is also exhausted from pressure adjusting
exhaust port. (Refer to Fig. 10-15 "Operation Check for Master Valve".)
6. Turn OFF the power supply to the DX200 again and re-install the cover
with the hexagon socket head cap screws. (Refer to Fig. 10-10
"Pressure Switch Unit Cover".)
Master valve exhaust side
10-23
Pressure [MPa]
0.18 to 0.20
0.01 to 0.02
HW1484370
180788-1CD
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