Overvoltage; Resistance Error; Frequency Error; Voltage Error - Hürner HST 300 Easy Manuel De L'utilisateur

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9.2.2 Overvoltage

The input voltage is in excess of 290 volts. If the error condition persists
for longer than 15 seconds, the welding process will abort.

9.2.3 Resistance Error

The resistance of the connected fitting does not correspond to the value
previously read.

9.2.4 Frequency Error

The frequency of the input voltage is out of tolerance (42 Hz - 69 Hz).

9.2.5 Voltage Error

Check generator voltage and current. The output voltage does not cor-
respond to the value previously read; the welding unit has to be sent to
the manufacturer for check.

9.2.6 Low Current

The message is displayed if the there is a momentary current failure or
if the current decreases by more than 15% per second for 3 seconds.

9.2.7 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
cut-off 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 cur-
rent at start plus 15%.

9.2.8 Emergency Off

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

9.2.9 Heater Coil Error

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

9.2.10 Power Supply Failure

The last welding is incomplete. The welding unit was disconnected from
power supply voltage.
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HST 300 Easy / HST 300 Easy D Technical Specifications

Operating Range
Nominal Voltage
Frequency
Power
Protection Index
Primary Current
Ambient Temperature
Output Voltage
Max. Output Current
Max. Welding Duration
Tolerances:
Temperature
Voltage
Current
Resistance
Version November 2010
All manuals and user guides at all-guides.com
20 - 315 mm
230 V
50 Hz - 60 Hz
3500 VA, 80 % duty cycle
IP 54
16 A
–10 °C to +50 °C
8 V - 48 V
80 A
1000 seconds
± 5 %
± 2 %
± 2 %
± 5 %
HST 300 Easy / Easy D User's Manual
15
EN