ESH150
–3PE~400V
Service manual
16/56
Ref. NR-000144-ENG
3.
Heaters
This display shows the temperatures in the isocyanate (ISO) and polyol (RESIN) heaters. To
enter new temperature settings, press the MODE button
,
select the desired temperature by
pressing the UP/DOWN
buttons and press the MODE button again to confirm the selected
value.
The lower pushbuttons switch the heater of each product
“on” and “off”. Each pushbutton
incorporates an LED which lights up when the heater is operating; a flashing LED indicates that
the heater is
“on” but is not heating up.
The heater will temporarily stop working in the event of excess pressure in either of the heating
circuits and will switch
“on” again once the problem has disappeared.
If the temperature control sensor is not active, the symbol
(---)
will appear on the display and the
heater will switch
“off”.
The hose heating command is not memorized by the unit and therefore it must be activated
“on”
every power-up.
4.
Mode button
Press this button to modify the different control parameters.
5.
Up / Down buttons
Increase or decrease the value of each parameter.
6.
Counter
This display indicates the number of cycles completed, and the number of cycles remaining.
The cycle counter is incremental and can be reset to zero by pressing the UP and DOWN
buttons simultaneously.
The system offers a certain number of work cycle pre-selects. When the unit completes the pre-
selected number of cycles, it stops dispensing product.
To enter the desired number of cycles, press and hold the MODE button until the cycle counter
starts flashing, then select the number of cycles by pressing the UP / DOWN
buttons as
required. Then press the MODE button again to confirm the number of cycles.
When the unit starts, the number of completed cycles is deducted from the number of pre-set
cycles. When all the pre-set cycles have completed, the counter displays zero and the unit
stops.
The counter display alternately shows (at intervals of two or three seconds) the number of
cycles completed (totalizer) and cycles remaining (preselector). The remaining cycles are
displayed with a minus sign (-) in front (-XXXXX).
The cycle counter display also shows alerts in the event of malfunction.
You can use the cycle counter remaining as a minimum level indicator in the tanks (integrated
or external). To do this, you must calculate the cycles to program so that the machine stops
warning that you must fill the product tanks. It is recommended to perform the calculation on
93% of the real capacity of the product tank. For this calculation, you must divide 93% of the
liters of said tank by the capacity in cubic decimeters of the corresponding product pump.
For example, if you have a 240 liters isocyanate tank and the machine is equipped with #7.6
isocyanate pump:
93% of 240 l = 223,2 l
#7,6 = 0,076 dm3
223,2 l / 0,076 dm3 = 2937 cycles
In case for integrated 30l tanks and #4.5 product pumps:
93% of 30 l = 27,9 l
#4,5 = 0,045 dm3
27,9 l / 0,045 dm3 = 620 cycles
