Amada UB25, Operation Manual

Page: 136 / 148

APPENDIX E: LCD DISPLAY MESSAGES
UB25 LINEAR DC RESISTANCE WELDING CONTROL
E-4 990-665
LCD Display Messages
MESSAGE DESCRIPTION
CORRECTIVE ACTION
(IF REQUIRED)
TYPE OF
MESSAGE
CURRENT 2
LOWER THAN
LOWER LIMIT
Actual weld current is less than the
user set Lower Limit value for
Pulse 2.
Determine the cause of the low current.
Changes to the welding setup or
process can affect the energy delivered.
Refer to the Troubleshooting Chart in
Chapter 6. Limits should be set by
qualified by personnel and are
designed to identify process variations.
OUT OF
LIMITS
EMERGENCY
STOP -
OPERATOR
ACTIVATED
The Operator Emergency Stop
switch has been activated. All
power outputs are disabled.
Remove any unsafe operating
conditions at the welding electrodes.
Reset the Operator Emergency Stop
switch.
Press RUN to reset, verify that correct
weld schedule is selected.
ALARM
FIRING DIDN’T
CLOSE IN 10
SECONDS
The Firing Switch input was not
activated within 10 seconds after
the Foot Switch was closed. Press
RUN
to clear alarm. Check air
pressure setting on weld head. Check
Firing Switch connection. ALARM
FIRING SWITCH
BEFORE FOOT
SWITCH
The Firing Switch input has been
activated before the Foot Switch
has been activated.
Check the weld head for an improperly
adjusted firing switch.
Automation Only - Check the timing
on the PLC control lines to the Firing
Switch and Foot Switch inputs. ALARM
ILLEGAL
SECURITY CODE
ENTERED
The wrong security code was
entered to de-activate the System,
Schedule, or Calibration Lock
protection features.
Press
MENU
, select System Security,
then enter the correct access code to
turn off System, Schedule, or
Calibration Lock protection features.
NOTE : Entering a security code of
414 will always unlock the system.
GENERAL
STATUS
INHIBIT 2
ND
PULSE
A monitor action is programmed
to inhibit the second pulse and the
first pulse energy limit was
reached.
Normal operation if this function is
used. See Chapter 4, Operating
Instructions.
OUT OF
LIMITS
INHIBIT CONTROL
SIGNALS
ACTIVATED
The Inhibit input control signal is
activated, preventing the Power
Supply
from continuing to
operate.
NOTE : Activating the Inhibit
input terminates only future
operations. It does NOT terminate
any present Power Supply
operation.
Remove the Inhibit signal condition
preventing further the Power Supply
operation.
NOTE : The correct removal action
depends on how the control signal I/O
logic was programmed by the user.
ALARM