IS-300A
5. Installation and Connection
5-5
When using another manufacturer's transformer
{
{
}
L1,L2,L3,PE)
Power cable
Communication cable
To PE
Circuit cable
External I/O
signal cable
(4-core:
To PC
To ground
MA-660A
Valve signal line
Welding
head
breaker
Earth leakage
Secondary
conductor
Start signal line
PLC
Shielded
line
Voltage detecting cable
Output cable
(3-core: U,V,PE)
the terminal strip
Match indications on
and the cable.
Toroidal coil
Welding
transformer
Transformer thermo
IS-300A Rear
IS-300A Front
(Note 1) All items other than IS-300A are sold separately.
(Note 2) In the secondary constant-current effective value control and secondary
constant-power effective value control, the toroidal coil is required. Connect the
voltage detecting cable neat the electrode and connect the other side to Pins 38 and
39 on the external I/O terminal strip.
(Note 3) The screw of the power cable for IS-300A is M8 (M6 for the PE terminal). The screw
of the output cable is M6 for U, V and PE.
(Note 4) On the MODE SELECT screen, set SCAN MODE to OFF. (See 4. (9)(q).)
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