Hypertherm XPR300, Инструкция по эксплуатации

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Diagnostics and Troubleshooting
8
XPR300 Instruction Manual 809480 279
719
Alert
Mix pwm 100% 100% duty is reached on H
2
, Ar,
or N
2
proportional valve supply
voltage. Total flow is decreased
to keep the mix percentage of the
other gases accurate.
Because the mixer tries to deliver
a flow, the outlet pressure can
continue to rise.
1. Make sure that the consumables
are correct.
2. Make sure that the inlet
pressures for N
2
, Ar, and H
2
are
consistently within acceptable
range.
3. Use the gas volume monitors
located near the pressure
transducers for P21, V1, and
V10 to look for gas obstructions,
or leaks.
720
Alert
Mix Pout>Pin Pressure out (P21) is greater
than pressure 1 of the pressures
on the inlet side of the mixer
(P10 – P12) by at least 0.069 bar
(1 psi). The mixer turns off when a
720 code occurs.
If pressure out (P21) decreases
or if P1 – P12 increases, mixer
operation will continue.
1. Make sure that the consumables
are correct.
2. Make sure that the inlet
pressures for N
2
, Ar, and H
2
are
consistently within acceptable
range.
3. Use the gas volume monitors
located near the pressure
transducers for P21, V1, and
V10 to look for gas obstructions,
or leaks.
721
Error
Mix param
checksum The mixing parameter checksum
failed.
1. Use the remote on-off switch to
turn OFF and then turn ON the
cutting system.
2. If the code continues, replace
the gas connect console.
722
Error
Mix flow cal The mixing flow calibration failed.
723
Error
Mix pressure cal The mixing pressure calibration
failed.
724
Error
Mix I2C1 There is a mixing communication
error on I2C1. 1. Examine the cable used to
ground the gas connect console.
Connect a disconnected cable
or repair a damaged cable if
found.
2. Make sure that all external panels
for all system components are
correctly installed. Install loose
or missing panels if found.
3. Make sure that all hardware that
holds the external panels is in
position and is tight. Tighten
loose connections if found.
725
Error
Mix I2C2 There is a mixing communication
error on I2C2.
Diagnostic
code number
and category
Diagnostic code
name
Description Corrective action