Entron EN1000 series, Инструкция по установке и эксплуатации

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Page 29
Figure 4.6.1 Low and High voltages conduits - wrong
4.6 NON-VOLATILE MEMORY ERROR
All ENTRON microprocessor based controls make extensive use of non-volatile memory
devices for parameter data storage. Although safety features (control relays and opto-
isolation) are in place to insure high voltage spikes do not appear on low voltage circuits,
non volatile memory devices can sometimes be affected by improper hook up, electrical
disturbances generated in other equipment operating nearby, or in the welding machine
itself.
When an ENTRON EN1000 or EN1001 control is powered up, or returns from an
emergency stop condition, it executes a diagnostic test that reads all memory locations
within the schedule storage areas. If invalid data is stored in memory, the control will display
a flashing [
%$
] in the data display window, and [
0!X!
] in the schedule window alternating
with the number of the schedule where the invalid data (error) was found. If the invalid data
was found in the extended function's memory area, [
01
] alternates with [
0!X!
].
The Error 32 indication does not mean there has been damage to the welding control. It
simply means something has caused invalid data to be stored in one or more memory
locations. The control will not sequence until this error has been corrected.
To recover from this condition:
1. Press the SELECT push-button to stop the flashing.
2. Place the control in the PROGRAM MODE.
At this point, the operator can use SELECT to find the Function containing the invalid data.
3. Use the DATA push-buttons to correct the DATA.
4. Press ENTER.
5. Return the control to the OPERATE MODE.
If more than one location has been affected, it may be necessary to use the CLEAR ALL
command in the EXTENDED FUNCTIONS to erase all the memory locations and restore
the default settings (Factory Settings).
Reoccurring Error 32 (Error Code 14 Flashing in Previous Revisions)
The effects of electrical disturbances can be minimized or prevented by observing the
following precautions when installing the welding control:
1. Make sure the cabinet is properly grounded to the power distribution system, nearby
water pipe or other effective building ground with a wire adequate for its application.
2. All wires connected to the pilot input terminals on the TS1 terminal strip (FS1, FS3, FS7,
FS11, PS1, ES1, NW1, TLS1, and their adjacent GND terminals) should be separated
as much as possible from other wires connecting to solenoid valves, welding
transformers, and the AC line. These pilot input wires should never be run through the
same conduit with the solenoid, welding transformer and AC line wires. Connection of
any GND terminal to earth ground might cause Error [
%$
] or even Error [
#&
].
WRONG example for wiring
and routing of low and high
voltages conduit for typical
EN1000 series Controls is
shown on Figure 4.6.1
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