CSZ EZT-570S, Руководство пользователя

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EZT-570S User Manual
145
Alarm Monitor Description Corrective Action
EMERGENCY STOP Investigate cause of stop. Verify conditions are safe. Reset
emergency stop. Will require manual restart of chamber via
Overview screen or resuming program operation if an automatic
ramp/soak program was operating when stop occurred.
FLUID SYS TEMP Fluid system high temperature safety tripped. Limit must be manually
reset or power cycled to chamber to reset. Verify fluid level and flow.
Do not set temperature set point above fluid system design limits.
FLUID SYS HI PSI Fluid system exceeded operating pressure limits. Check for
restrictions in fluid system. Verify all isolation valves are open.
Reset high pressure safety.
FLUID SYS LOW FLOW Fluid flow safety tripped. Verify fluid level. Check for restrictions in
system. Check pump operation and service if necessary.
FTP! Check cable or server down.
Indicates that the FTP back-up attempt of the data files failed. Verify
that the EZT-570S is properly connected to the network and that the
FTP site is valid.
This alarm does not affect chamber operations. It is an
indication only alarm. No audible alert is associated with
this alarm.
LOOP COMMS FAILURE
Check communication wiring between the CPU module and 9300
loop controls. Verify proper addresses on 9300 controllers. Verify
power to 9300 controllers. Check rear terminal plug on 9300
controllers and make sure it is seated properly.
MOTOR OVERLOAD Motor overload tripped or motor drive fault. Requires manual reset of
motor overload. Check drive and motor fusing. Check motor for
overload condition, i.e., bearing wear binding shaft, etc. Replace
fuse, repair/replace motor or drive.
NTS Ping Failed. Check Cable.
Indicates that the EZT-570S was unable to synchronize its clock with
the selected national time server. Verify that the EZT-570S is
properly connected to the network and time server selected is
accessible.
This alarm does not affect chamber operations. It is an
indication only alarm. No audible alert is associated with
this alarm.
PHASE MONITOR
When equipped with a phase monitor (typically 3.5HP or 6HP scroll
refrigeration systems), this alarm indicates a fault with the chamber’s
main power source. Check for proper phase sequence, phase loss
or voltage imbalance between phases. Check system 1 compressor
fuses, replace if necessary.
The chamber will not operate until proper power input is obtained.
POWER FAILURE When equipped with an optional UPS back-up for the control system,
this alarm indicates a main power failure. The EZT-570S will then
automatically restart the chamber when main power is restored.
PRODUCT SAFETY Optional product safety limit tripped. Manually reset limit to clear
alarm. Check limit set points and verify properly set for product
testing.