SETUP AND OPERATION
MOTOMAN 4-3 Spot Welding Manual for Medar
4.2 Set Up
Weld setup is only available in Management mode. Choices shown in the
following screens might not be displayed, depending on the set up of the weld
schedule edit security parameter (S2C370). To set up weld data, follow these
instructions:
1. From the XRC Main Menu, select SPOT WELDING. The Spot Welding
Function Menu will appear:
2. Press the down arrow key to view selections at the bottom of the window.
Select WELD SETUP. The SPOT WELD SETUP screen will appear (screen
on the left shows AC setup; screen on right shows MFDC setup).
3. Set the Stepper # to zero or “1.” (Zero equals no stepper; “1” enables a
stepper.)
4. Set the transformer turns ratio. Refer to the rating on the spot gun
transformer.
5. For MFDC, set the operating frequency. Refer to the rating on the spot gun
transformer.
6. Set the high and low current limits. These two parameters define global
current range for every weld schedule. The weld control calculates the high
current window as a percentage over the current expected, and the low
current as a percentage decrease from the expected current. (The expected
current is the base current - programmed in the weld function - plus the
current boost that the stepper is providing).
R1
S
C
L
I/O ALLOCATION
WELDER CONDITION
GUN CONDITION
WELD MONITOR
WELDING COND
WELD SETUP
STEPPER COND
!
WELD DIAGNOSIS
EDIT DISPLAY
DATA UTILITY
R1
S
C
L
DOWNLOAD: DONE/NOT DONE
STEPPER # (0 or 1)
:
TRANS CURRENT RATIO :
HIGH CURRENT LIMIT (+%) :
LOW CURRENT LIMIT (-%)
:
HIGH C FACTOR LIMIT :
LOW C FACTOR LIMIT
:
!
1
45
2
2
195
155
SPOT WELD SETUP
EDIT DISPLAY
DATA UTILITY
R1
S
C
L
DOWNLOAD: DONE/NOT DONE
STEPPER # (0 or 1)
:
TRANS TURNS RATIO :
OPERATING HIGH FREQ (HZ) :
HIGH CURRENT LIMIT (+%) :
LOW CURRENT LIMIT (-%)
:
HIGH C FACTOR LIMIT :
LOW C FACTOR LIMIT
:
!
1
45
2000
2
2
195
155
SPOT WELD SETUP
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