Errata sheet – Miller Electric MR-5 User Manual
Page 46
ERRATA SHEET
After this manual was prInted, refinements In equipment design occurred. This sheet lists exceptIons
to data
appearing later in this manual.
AMENDMENT TO SECTION 2
-
INSTALLATION
IMPORTANT: A 25 ft. (8m) interconnectingcord with a five-pin Amphenoiplug is supplied with this unit but is not used
in this installation. Retain cord for future use.
Amend Section 2-5. COMPUTER INTERFACE TERMINAL STRIP CONNECTIONS
A
WARNING: ELECTRIC SHOCK
can kill.
•
Do not touch live electrical parts.
•
Shut down unit, welding power
source, and robot, anddisconnect inputpoweremploying lockout/tag-
ging procedures before making interconnections.
Lockout/tagging procedures consist
of
padlocking line disconnect switch in open position, removingfuses
from fuse box, or shutting
off and red-tagging
circuit breaker or
other
disconnecting device.
There are several terminal strips inside the computer interface for control connections. Remove unit top cover, loosen
screws on strain relief on unit rear panel if necessary, and locate appropriate terminal strip for connections. Tighten
screws on strain relief if necessary, and reinstall top cover when procedure is finished.
A. CV/CC Connections
A
WARNING: Read and follow safety information at beginning of Section 2-5 before proceeding.
1.
Locate terminal
strip
2T.
2.
For
CC operation, remove jumper link between terminal E and F on 2T.
IMPORTANT:
The Inductance control
is disabled when operating in the CC (constant current) mode.
B. ARC FAILURE Light Connections (Figure 2-4)
A
WARNING: Read and follow safety information at beginning of Section 2-5 before proceeding.
The ARC FAILURE light on the computer interface
front panel is turned on and
off by a
signal from the robot control
unit. Locate supplied length of
18 gauge/2-conductor cord
for
this connection, and proceed as follows:
1.
For robot control units with no other connections at jig terminal strip 2:
a.
Open robot control unit door, and locate jig terminal strip
2.
b.
Route cord under cross member below door.
c.
Make cord connections
to terminal strip common and the Weld Alarm terminal.
d.
Close robot control unit door, and route cord through strain relief on rear panel of computer interface.
e.
Connect cord to 2TF and 2TG.
2.
For robot control units when 115 or 24 vac, or 24 vdc is used at jig terminal strip 2T:
a.
Obtain a 115 or 24 vac, or 24 vdc isolation relay, and install into jig interface.
b.
Open robot control unit door, and locate jig terminal
strip 2.
-v