HygroMatik FLE TSPA Series, Руководство пользователя

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Page 85
Continuation of glossary (1)
Term [Index] Explanation
Flushing of dead-end line 27 When this function is activated, the feed water line is flushed during operation phases in which there are no
requests in order to prevent germ formation. For this purpose, the inlet solenoid valve and the blow-down
pump are activated at the same time. The "Flushing_of_dead-end line_interval" parameter determines when
flushing starts after a request was not received, the "Flushing_of_dead-end line_duration" parameter
determines how long flushing takes. The interlock (safety) system must be closed so that the inlet solenoid
valve can be controlled ("partially automatic flushing of dead-end line").
Manual blow-down 28 Pumping out of the cylinder water by touching the "Blow-down" icon on the screen or by a

Software
control command [12]
via the 
Communication interface
[13]. Repeated actuation or a corresponding

Software command [12] switches the

Blow-down function [58]
off again). The cylinder water may also
be pumped by setting the control switch on the device front panel in the "II" position while the control remains
switched off.
Switch-off point 29 The switch-off point for switching off steam production with decreasing 
Demand [5]
is specified as a
percentage value of the maximum control signal. The switch-off point is generally selected as > "0" to hide
any errors on the control signal close to the zero value and thereby allow reliable switch-offs.
?
Switch-on point 30 The difference value for the switch-on point specifies the percentage share of the max. control signal by
which the switch-on point is to be above the switch-off point. It therefore determines the switching differential
between switching off and switching on again and is also used to prevent the unit from being frequently
switched on and off unnecessarily. Example: Switch-off point 20%, ? Signal_switch-on_point 5% , signal
type voltage control in the range 0... 10 V, the switch-on point is then at 2.5 V, the switch-off point at 2.0 V.
Thermo sensor 31 With the

HKDB [78]
, a thermo sensor is located on the cylinder cover, connected to the heater - or if
available - both heaters via a capillary tube. A thermal switch is also arranged on every

Solid state relay
[46]
. All thermo sensors/thermal switches are connected in series. If one of the thermo sensors/thermal
switches is triggered, the power supply to the steam humidifier is interrupted. The thermo sensor(s) on the
cylinder(s) have to be reset mechanically after cooling down. The thermal switches are automatically reset
after cooling down.
Limitation of operating time 32 The unit stops the steam production according to the number of minutes specified. The time is counted from
the point when the interlock (safety) system was closed. To put the unit back into operation, the interlock
(safety) system must be opened and closed again, or the

Communication interface [13]
must be used to
transmit 
Software control commands [12]
to open and close the virtual interlock (safety) system again.
Alternatively, the control switch can also be opened and closed again. This does, however, cause the unit to
be restarted. Setting the parameter to a value of "0" deactivates the limitation of operating time.
Steam_amount_service 33 The steam volume produced [kg] is compared to the default value set in the "Steam_amount_service"
parameter to obtain a criterion for maintenance requirements. Once the default value has been reached, the
message "Steam_amount_counter" is displayed. Once the service has been performed, the steam volume
counter has to be reset with "Service_reset_cyl. x". The remaining steam volume can be viewed using the
"Steam_until_msg._cyl. x" read value.
Service_main_contactor 34 The operating cycles of the main contactor(s) are recorded by counters and compared to factory-set default
values by the software. When a default value is reached, the "Service_main_contactor x" message is
displayed on the screen. After a main contactor has been replaced, the respective counter must be reset
with the parameter "Main_contactor_x_Reset" (x = number of the main contactor, 1...5).
Cylinder full status 38 When the unit measures a potential at the sensor electrode, it reports a cylinder full status. In this case, the
cylinder water level is so high that it creates an electrical bridge between one of the power electrodes and
the sensor electrode. If the cylinder full status continues for an hour, steam production is shut down and a
fault message is generated.
Level control 39 With the 
HKDB [78]
, communicating tubes are used for the contact-free measurement of the water level
in the cylinder.
Max. level 40 The maximum water level value supplied by the

Level control
is reached. If this state is reached 5x in
succession within a predefined time interval, the control issues a "Error_max.level" message (only

HKDB
[78]
).
Max. temperature 41 Maximum steam bath temperature where, once reached, the unit switches off for safety reasons. This is set
using the differential value
?
Max temp. in "K" (corresponding to °C), which must be added to the
temperature target value to determine the absolute switch-off temperature.
Internal actuator signal 42 Actuator signal for the control of the power element of the unit concerned.
Max. steam output 43 Reduction of output power to 25... 100% of the nominal output. Can lead to improved control behaviour at
lower output requirements.
1 step operation 44 On/off operation of the steam generator without control function through a potential free contact suitable for
low voltage, to be supplied on-site.