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2 DressPack and SpotPack
2.6.1 Introduction
3HAC 025861-001
Rev.E
89
Weld power circuit
The welding power for the welding gun is fed through a circuit breaker and welding
thyristor (for AC welding) or inverter (for MFDC welding) and further out to the
welding power cable. The cabinet is prepared for power feeding from the floor or
from top. The welding power cable (outgoing feeding) is connected, via cable gland,
directly to terminals inside the Spot Welding cabinet.
The circuit breaker has a built in thermal release that could be adjusted (not for UL
version) for customer specific needs to protect welding equipment and to get selec-
tivity in the power circuit. The thermal release is set at 110 A at delivery. The max-
imum level should not exceed 150 A.
Control Circuits
Power feeding 240/115 V AC and 24 V DC for the control circuits is fed from the
robot controller cabinet. Also, the safety circuits in the robot controller cabinet are
used to interlock the welding timer.
A welding timer (Bosch), integrated with the air cooled thyristor or inverter, controls
the welding current. The welding timer includes control program that gives possibil-
ity to program different weld sequences. The programming is normally done on a
programming device or a PC that is connected directly to the welding timer. The
interface between the robot system and the welding timer is handled via a field bus
interface (Can DeviceNet) or parallel signals for option 781-2. Examples of signals
are weld start, weld ready, weld program choice and error handling.
Also, cross connections, of interface signals and interlocking between the robot sys-
tem (I/O-boards), the water and air unit, signals to DressPack or stationary gun, are
done within the Spot Welding cabinet.
Programming device for the welding timer is not included in the delivery.
If the option 744-1 is chosen there will follow a door interlock with the Spot Welding
cabinet. If option 429-1 is chosen a circuit breaker type T3 will be supplied.
The welding capacity as well as the weld timer brand could be chosen among the 3
versions described below. Additional features could then be added to each of the
cabinet variants.
For further information see:
-Product Manual DressPack/SpotPack
-Circuit diagrams
-Separate manuals for the Bosch equipment
Содержание IRB 6620
Страница 1: ...Product specification Articulated robot IRB 6620 150 2 2 M2004...
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Страница 3: ...Product specification Articulated robot 3HAC025861 001 Rev E IRB 6620 150 2 2 M2004...
Страница 34: ...1 Description 1 6 1 General 32 Rev E 3HAC 025861 001 Figure 20 Holes for mounting of extra equipment...
Страница 116: ...2 DressPack and SpotPack 2 9 1 Options 114 Rev E 3HAC 025861 001...
Страница 132: ...3 Specification of Variants and Options 3 1 14 Documentation 130 Rev E 3HAC 025861 001...
Страница 134: ...4 Accessories 132 Rev E 3HAC 025861 001...
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