Precautions before start-up of the GWT C9
CAUTION
The precautions below should be observed before proceeding with start-up of
the GWT C9:
•
Make sure correct water flow values are defined. This to avoid damaged
welding equipment such as transformer, diodes, leaf shunts and other parts
of secondary side.
•
Make sure power supply corresponds to the type plate at transformer.
•
Make sure that the electrical power cable fulfills international safety
regulations.
•
Make sure the electrical circuit diagrams and flow charts, delivered with the
welding gun, have been followed during installation.
•
Make sure duty cycle does not exceed 40% for the primary side by calculating
Duty Cycle Rectifier. See how to calculate in the below example:
Duty Cycle Transformer = (weld time x welds/min x 100%)/ (60 s/min x
frequency) = (22 cy. x 10 welds/min x (100)) / (60 s/min x 50 hz) = 6,1%
Duty Cycle Rectifier (diodes) = (22cy. / (22cy. on + 150 cy.off)) x 100 = 12,8%
Required equipment
Product (example)
Equipment
Qty
See
.
Standard toolkit
1
See
Other tools and procedures may be re-
quired. See references to these procedures
in the step-by step instructions below.
1
Bolts, screws and tightening torques
See
Bolt, screws, tightening torques on page 118
.
48
Product manual - GWT C9
3HAA010198-001 Revision: A
© Copyright 2022 ABB. All rights reserved.
3 Installation and commissioning
3.1 Introduction
Continued
Summary of Contents for GWT C9
Page 1: ...ROBOTICS Product manual GWT C9 ...
Page 62: ...This page is intentionally left blank ...
Page 124: ...This page is intentionally left blank ...
Page 126: ......
Page 127: ......
