Excess Current; Emergency Off; Heater Coil Error; Power Supply Failure At Last Welding - omisa HST 300 Smart Manual De Instrucciones

rent failure or if the current decreases by more than 15%
per second for 3 seconds.

11.2.7 Excess Current

The output current value is in excess; possible causes: short-
circuit in the heater coil or the welding cable. During the
start stage the upper abort threshold equals 1.18 times the
value at start, in any other case the upper limit depends
on the load value and is calculated as the current at start
plus 15%.

11.2.8 Emergency Off

The welding process has been interrupted by pressing the
STOP/RESET key.

11.2.9 Heater Coil Error

The dynamic current value during welding differs by more
than 15% from the required value, indicating a short-circuit
in the heater coil.

11.2.10 Power Supply Failure at Last Welding

The last welding is incomplete. The welding unit was dis-
connected from the power supply voltage while it was
in progress. To go on using the unit, this error has to be
acknowledged by pressing the STOP/RESET key (see also
Sect. 9.4).
12 Technical Specifications
Operating Range
Nominal Voltage
Frequency
Power
Ingress Protection
Primary Current
Ambient Temperature
Output Voltage
Max. Output Current
Memory for Welding Rep. 500 reports
Data Interface Port
(see also the information on the data ports in Sect. 8)
Tolerances:
Temperature
Voltage
Current
Resistance
22
EN
Fittings sized up to 160 mm
230 V
50 Hz / 60 Hz
1680 VA, 80% duty cy.
IP X4
max. 16 A
– 20°C to + 60 °C
(– 4°F to + 140°F)
8 V - 48 V
65 A
USB v 2.0 (480 mbit/s)
± 5 %
± 2 %
± 2 %
± 5 %
HST 300 Smart User's Manual
O . M . I . S . A . S r l
Via Verga 9/11
20845 Sovico (MB), Italy
Version February 2020