REHM TIGER 170 Instructions De Service page 11

For the precise selection of the electrode polarity and current settings for individual
electrodes, please refer to the electrode manufacturer's instructions.
If for some reason there is a permanent short circuit between the electrode and the
workpiece, the Anti-Stick Function will automatically operate after approx. 1.3s, this then
limits the output current to approx. 35 A.
6.2.2 Stick Electrode welding with the BOOSTER
In this mode of operation, the mains fuse monitoring function is automatically de-activated.
The maximum possible welding current is then 150 A for the TIGER 170 and 170 A for the
TIGER 210. If a higher current is selected, the welding current output is automatically limited
to 150 A /170 A.
6.2.3 Anti-Stick Function
If there is a permanent short circuit between the electrode and the workpiece during welding,
the Anti-Stick Function is automatically activated after approx. 1.3s. This function
automatically limits the welding current to approx. 35 A. This prevents the electrode from
overheating and burning out. The operator terminates the short circuit simply by removing
the contact between the electrode and the workpiece.
6.2.4 INTIG Energy for electrode welding
The INTIG energy (Intelligent Ignition Energy) automatically pre-sets a high power ignition
current sequence, which ensures reliable and smooth ignition when stick electrode welding.
Electrode sticking is prevented during re-ignition even with basic electrodes as the high
power ignition current pulse is only activated as the electrode is lifted off following contact
between the electrode and the workpiece, (similar to the Lift-Arc function for TIG welding).
7. Remote control units
7.1 TIG PLUS 1 foot-operated remote current control unit
(Article No. 753 1001)
The TIG PLUS 1 remote control unit is equipped with a foot-pedal for the infinitely varying the
output current during welding. When the pedal is fully depressed, the welding current
reaches the full value pre-set on the machine. The machine can therefore be set to the
maximum current required, allowing optimum resolution over the required operating current
range.
The TIG PLUS 1 remote control unit also incorporates a rocker switch which has the
following function:
- Hand control signal
The welding current is switched on and off using the torch button; the non-latch and latched
functions as well as the downslope time are active and can be selected on the machine. The
foot pedal controls the welding current, it is not de-activated! This type of operation is
intended for mass production applications where the welding current usually remains
constant and only needs to be reduced slightly from time to time. The current ramping
functions which are active in this mode of operation are therefore beneficial.
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