Cebora Plasma PROF 166 HQC, Instruction Manual

Page: 52 / 260

52
NOTE: Both the sections 1 and 2 of DIP1 must always be
in identical positions (e.g.: both ON or both OFF).
V_Arc-ISO
CNC
CONNECTOR
TERMINALS
ON POWER
SOURCE
SIGNAL
NAME
SIGNAL
TYPE
POSITION
ON
INTERFACE
BOARD
11
V_Arc-ISO
(0÷5V) (0÷10V)
analog out+ J5, pin 3
7 analog out- J5, pin 4
“V_Arc-ISO” is the signal relating to the arc voltage at
Power source output (“electrode-piece being worked”
voltage), provided in insulated and reduced way.
The “V_Arc-ISO” signal is available with the following full-
scale values:
• voltage from 0 to 5V, corresponding to the arc voltage
from 0 to 250V (reduction ratio = 1/50);
• voltage from 0 to 10V, corresponding to arc voltage from
0 to 250V (reduction ratio = 1/25).
The full scale value depends on the position of the
dip-switches Dip1 on the interface board (see fig. 15).
DIP 3
DIP 1
Fig. 15
The machine is supplied with the insulated reduced arc
voltage output at 1/50 Varc.
WIRING OF A NON-INSULATED VOLTAGE ANALOGUE
OUTPUT.
output voltage 0 ÷ 250 Vdc;
output impedance 10 Kohm, approx.
V_Arc-NO-ISO
CNC
CONNECTOR
TERMINALS
ON POWER
SOURCE
SIGNAL
NAME
SIGNAL
TYPE
POSITION
ON TORCH
C
MEASURE-
MENT
9
V_Arc-NO-ISO
(0÷250V)
analog out+ J8, pin 1
8 analog out- J8, pin 2
“V_Arc-NO-ISO” is the signal relating to the arc voltage
at Power source output (“electrode-piece being worked”
voltage), provided in a direct and NON insulated way.
The “V_Arc-NO-ISO” signal is available with voltage val-
ues 0 ÷ 250 Vdc and with positive terminal (potential of
piece being worked) electrically connected to the earth
potential of the system.
The “electrode” potential is provided with a 10 Kohm re-
sistor, fitted in series at output.
3.2.5 Emergency stop signal for power source
WIRING THE EMERGENCY INPUT.
Input voltage 24 Vdc;
Current input 20 mA max
EMERGENCY A
CNC
CONNECTOR
TERMINALS
ON POWER
SOURCE
SIGNAL
NAME
SIGNAL
TYPE
POSITION
INSIDE POWER
SOURCE
21
Emergency
A
Contact NC
Line TL
control
22 Contact NC
Line TL
control