CONNECTION OF
POWER SOURCE
21
| CONTROL CABLE |
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| FOR CONTROL CABLE | |
| WITH 14 PIN | |
| PLUG CONNECTOR | |
TO | OR |
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INPUT CABLE PLUG |
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CONTROL CABLE | FOR CONTROL CABLE | |
| WITH TERMINAL STRIP | |
| LEAD CONNECTORS |
Do not operate with covers removed.
Disconnect power source before servicing.
Do not touch electrically live parts.
Only qualified persons should install, use or service this machine.
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| N.A. Welding cables must be of proper capacity for the current and | |||
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| duty cycle of immediate and future applications. | |||
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| N.B. Extend lead #21 from control cable with terminal strip connectors | |||
+21 - 21 41 | 4 | 2 | 31 | 32 | 75 | 76 | 77 | or from | |||
physically suitable for the installation. An | |||||||||||
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| remote voltage sensing work lead may be ordered for this purpose. | |||
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| C | Connect it directly to the work piece keeping it electrically | |||
N.F. |
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| separate from the welding work lead circuit and connection. For | ||||
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| A | convenience, this extended #21 lead should be taped to the | |||
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| 32 | welding work lead. (If the length of work lead circuit is | |||
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| 31 | short, and connections can be expected to be reliable, then | |||
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| 2 | ||||
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| 4 | control cable lead #21 does not need to be extended and can be | |||
N.B. & N.C. |
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| GND | directly connected to terminal #21 on the terminal strip. Note | |||||
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| that this is not the preferred connection because it adds error | |||
NEGATIVE |
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| POSITIVE |
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| N.D. | to the |
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| 21 | N.C. Tape up bolted connection if lead #21 is extended. | |||
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| N.D. Connect the control cable ground lead to the frame terminal | |||
| N.H. |
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| marked | near the power source terminal strip. The power | |||
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| source grounding terminal (marked | and located near the power | ||
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| BOLT TO CABLES FROM | source input power connections) must be properly connected to | |||
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| WIRE CONTACT AS'BLY | electrical ground per the power source operating manual. | |||
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| N.A. |
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| N.E. The jumpers on the | |||
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| N.D. & N.F. | Connect red jumper to pin "S". |
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| Connect white jumper to pin "B". | |||
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| When using | |||
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| TO WORK | button will not operate unless a jumper is connected between the two | |||
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| tab terminals, labeled "AUTO", located above the transformer on the | |||
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| REMOTE VOLTAGE SENSING LEAD | Cold | ||||
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| permitting only Hot Starting techniques to be used. | |||||
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DIAGRAMS
bove diagram shows electrode connected positive. To change polarity, power off, reverse the electrode and work leads at the power source.
efer to
FOR ADDITIONAL INSTALLATION INSTRUCTIONS, SEE
For proper setting of switches on power source, see power source operating manual.
N.F. If lead #21 is to be connected to the terminal strip, connect to the #21 terminal that matches work polarity. This connection must be changed
whenever the electrode polarity is changed.
N.G. For proper
N.H. Illustration does not necessarily represent actual position of appropriate output studs. Refer to power source operating manual
for more information.
S22979