Front Panel Connector Description (P); Rear Panel Connector Description; Cooling Unit Interface - Cebora 394 TIG Instruction Manual

3�7

Front panel connector description (P)

Pin Description
1 Start digital input.
2 + 5Vdc voltage output for reference current external
potentiometer power supply.
3-6 Arc-ON Relay contact (30Vdc 125Vac, 0.5A max).
arc lit = contact closed;
arc off = contact opened.
4 Down Digital input performs the welding current set point
reduction.
5 n.c.
7 Gnd 0V for reference current external potentiometer power
supply
Up digital input; performs the welding current set point
8
increasing
9 Gnd 0V for external commands
10 Current Ref. analog input welding current set point signal
3�8

Rear panel connector description

For connectors CN1, CN2, CN3 and CN4 refer to chapter 13.4.
3�8�1 Cooling unit interface
The following are present in the section relating to the cooling unit shown in figure 1:
M Shuko cooling unit socket maximum power 230Vac 500W
N Fuse holder fuse T 2A/230V – Ø 5x20 mm
O Cooling unit pressure switch socket this socket manages the cooling unit pressure switch and unit
recognition.
Socket M is used exclusively to connect cooling unit
other devices could affect the integrity of the welding power source or lead to operating anomalies. CEBORA
declines any responsibility for improper use of the power source and the accessories connected to it.
64/107
Ethernet 100Mbit (LAN) connector
CN5
The connector is optional and present if the optional 24Vdc power supply kit
is present for external Wi-Fi router Item 451.
For more details, refer to the instruction manual of kit Item 451 code
3301068.
Wiring diagram
CN5
Pin
1
2
WARNING
GRV12 Item 1683 to the welding power source. Connecting
Description
+24Vdc 2A
0Vdc