YASKAWA MOTOMAN-MPX2600 Instructions Manual page 106

MPX2600
Fig. 10-16(b): Enclosure Protection Flow Chart
Start counting the purging time (four minutes
N
Switch Purging Mode to Operation Mode after executing
the following steps.
1. Switch the pressure from purging to operation.
2. Close the master valve.
3. "Purging Completion" message appears on the
programming pendant
4. Supplying of the power becomes available to motors,
brakes and painting device.
After these steps, the mode is switched to the
operation m ode.
10 Maintenance and Inspection
10.3 Inspection of the Explosion-Proof Device
A
Start Purging Mode.
1.Switch the operation pressure
to the purging pressure.
2.Release the master valve.
When the purging air is 20 kPa
or more, has the flow reached
320 L/min?
Y
When the purging air is 20 kPa
or more, is the flow kept at
320 L/min?
Y
Has 4 minutes passed since the
purging count was started?
Y
C
10-25
Abnormal Pressure Mode
Turn the breaker OFF by manual.
Purge
Stop supplying the protective gas
reset.
into the pressure switch unit.
Does the abnormal
Y
pressure occurs in the first
time after the first
restarting?
N
Has 2
- Execute Abnormal Pressure
minutes passed
N
Y
Mode. (Abnormal purging)
since the purging
air mode was
- When the power supply of the
started?
servo unit and the encoder is
turned OFF automatically, the
master valve is closed at the
same time.
- "Abnormal Purging" appears
).
*1
on the programming pendant
and the alarm lamp on the
DX200 is lit.
N
HW1484370
180788-1CD
B
N
D
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