11
OuTPuTS, diSPlay aNd CONNECTiON PurPOSE
Edition of 0
9
.12.2020
06
Fig. 8. Diagram of connection to the plasma system PURM-180 MA
TORCH FIRE
Power
supply
source
Control unit
Oscillator
CA
THODE
NOZZLE
Item to be cut
Plasma torch
Overheating
The THC1-DV1 device is installed in close proximity to the plasma source. It minimizes the
length of high-voltage wires and allows the module energizing from the line to which the
plasma source is connected.
The THC1-M module is installed in a CNC cabinet and connected to PC via a network switch
(in case the PLCM controller is used) or directly to the PC network card (if the PLCM is
unavailable). The data transmission line (DATA CABLE) has no galvanic coupling between
modules which allows avoiding any interference induction by plasma source to the CNC control
cabinet. When a PLCM motion controller is absent in the system (PC control movement using
LPT port), it is necessary to send signals to vacant inputs, since these inputs are galvanically
isolated by means of an optocoupler, it is necessary to use an external power supply source
and current-limiting resistors.
For a device to be found, IP address of your PC and THC1 address must be located in the same
subnetwork. By default, THC1’s address is 192.168.10.12, which means that the PC’s address
begins with 192.168.10.xxx, and the last number must not coincide with the PLCM’s or THC1’s
address. If the device does not appear in the list, see FAQ section.
It should be noted that for the THC module to be successfully found, the device shall be
connected to the same network card as the PLCM controller, i.e. if two network cards are
installed in the computer, and the PLCM controller is connected to one of them, and the THC1
device is connected to the other one, then the ТНС1 module will not operate. Both devices
shall only be connected to PC via a network switch. The setup procedure of a network card
for the PLCM controller operation is detailed in the movement controller manual. If THC1 is
used without a PLCM movement controller, and height is monitored by means of UP and DOWN
signals via PC’s LPT port, no network switch is necessary. The DHCP switch box is only checked
if there is a DHCP server or router in the network. That is to say, if PLCM and THC modules are
connected to PV through a router, then IP addresses are assigned to the devices automatically.
