3.3 Checking Steps
3-19
Free Curve Movements with FWD/BWD Operations
• The manipulator moves in a straight line to the first step of free curve motion.
• There must be three free curve motion steps in a row to perform a free curve operation.
• Depending on the position where the [FWD] / [BWD] operation is performed, the alarm
“IRREGULAR DISTANCES BETWEEN TEACHING POINTS” may occur. Note that FWD/
BWD inching operations change the path of the manipulator and
caution is therefore
required
. Performing these operations also increases the likelihood that the “IRREGU-
LAR DISTANCES BETWEEN TEACHING POINTS” will occur.
• If the [FWD] or [BWD] operation is restarted after being stopped to move the cursor or
perform a search, the manipulator moves in a straight line to the next step.
• If the [FWD] or [BWD] operation is restarted after being stopped to move the axis as
shown in the following, the manipulator moves in a straight line to P2, the next free curve
motion step. Free curve motion is restored from P2 onward. However, the path followed
between P2 and P3 is somewhat different from the path followed at playback.
• If the manipulator is moved to P3 with [FWD], stopped, and then returned to P2 with
[BWD], the path followed between P2 and P3 is different for each of the following: the first
FWD operation, the BWD operation, and the consequent FWD operation.
n
Selecting Manual Speed
When [FWD] or [BWD] is pressed, the manipulator moves at the manual speed selected at
that time. The set manual speed can be checked by the MAN SPD lamp on the programming
pendant.
Manual speed is set with [FST] and [SLW]. FWD operation can be performed at a high speed
by pressing [HIGH SPD]. Follow the procedure below to select a manual speed.
J O B C O N T E N T
S
C
M
R1
M A N U A L
S P E E D
J O B
E D I T
D I S P L A Y
UTILITY
Summary of Contents for XRC 2001
Page 4: ...XRC Operator s Manual for Spot Welding ii MOTOMAN NOTES ...
Page 22: ...x ...
Page 25: ...1 3 Programming Pendant 1 3 1 3 Programming Pendant Programming Pendant ...
Page 32: ...2 2 Turning on the Servo Power 2 4 ...
Page 34: ...3 1 Manipulator Motion 3 2 ...
Page 52: ...4 2 Playback 4 2 ...
Page 62: ...5 4 Welding Test 5 10 ...
Page 78: ...7 3 Cutting Test 7 6 ...
Page 84: ...8 4 Welding Test 8 6 ...
Page 86: ...9 2 Turning the Main Power Off 9 2 ...
Page 87: ......
Page 103: ...xvi ...
Page 125: ...1 5 About the Security Mode 1 22 ...
Page 209: ...4 6 Displaying Job Stack 4 34 ...
Page 299: ...6 5 Mirror Shift Function 6 34 ...
Page 329: ...8 2 ...
Page 331: ...9 2 ...
Page 341: ...10 2 Registering Work Instructions 10 10 ...
Page 349: ...11 3 Spot Gun Condition Data File 11 8 ...
Page 373: ...14 5 Spot Welding Specific Signal Allocation List 14 12 ...
Page 375: ...15 1 Table of Work Instructions 15 2 ...
Page 385: ...11 10 ...
Page 386: ......