User Manual

Menu functions
48
9.4.2. Keypad control or setpoint setting via the analog input
Factory setting:: OFF
The selected mode is
indicated on the VFD
COMFORT-DISPLAY
OFF
PT100
EPROG
>
>
In addition to the serial interface via remote control the circulator offers
the possibility to adjust the setpoint via analog interface >ext. Pt100< or
>REG+E-PROG<.
OFF - Setpoint setting with the navigation keys
or the integrated programmer.
PT100 - Setpoint setting via the analog socket „ext. Pt100“ using an
external temperature sensor or an appropriate voltage/current
source.
EPROG - Can only be adjusted when an electronic module with analog
connections is used (option).
Setpoint setting via the analog interface REG+E-PROG connection
with an external voltage or current source or a programmer.
Important:
Connect the external voltage or current source or a programmer to
the circulator via the socket REG+E-PROG (see page 70).
In the menu >MENU IN/OUT< set the parameter >EPROG-
INPUT< and the input variables >EPROG-SIGNAL< (see page 70).
The E-Prog input can only be used either under menu item >SP
EXT < or under menu item >ACTVAR<
(see page 49).
9.4.3. AUTOSTART
Warning:
For supervised or unsupervised operation with the “AUTOSTART“ function avoid any
hazardous situation to persons or property
Take care to fully observe the safety and warning functions of the circulator.
Factory settings: OFF
Notice:
The circulator has been configured and delivered by JULABO in
accordance with the NAMUR recommendations. This means for the start
mode that the unit must enter a safe operating status after a power
failure. This safe operating status is indicated by the message „OFF“ or
„R OFF“ on the VFD COMFORT-DISPLAY.
A complete, all-pole shutdown of the main functional elements such as
heater and pump motor is effected.
The values set on the circulator remain saved and the unit is restarted by
pressing the start/stop key in manual control.
In remote control mode the values need to be resent by the PC via the
interface.
If such a safety standard is not required, the NAMUR recommendations
can be bypassed with the AUTOSTART function thus allowing a direct
start of the circulator by pressing the mains switch or using a timer.