Delta OHM HD2817T Series, Manual

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To change the hysteresis width, press ENTER to select the set value line and use the
 
arrows to set the desired value.
Press ENTER to go to the status line. Use the
 
arrows to select active in order to
enable the hysteresis, inactive to disable it.
On Error This parameter controls the relay RL1 behaviour if the physical quantity associated
to the relay goes in error.
The error occurs, e.g. when the measurement exceeds the functioning limits indicated
in the technical information, when the probe becomes faulty or gets disconnected.
This parameter can be set to “
Active ” or “ Inactive ”:
•
If On_Error=Inactive (factory default), in case of error, the relay de-energises
independently of its current condition. The contact 9 – 10 closes, the contact 8 – 9
opens.
• If On_Error=Active , in case of error, the relay energises independently of its
current condition. The contact 9 – 10 opens, the contact 8 – 9 closes.
This parameter does not depend from other settings (upper or lower threshold,
hysteresis, ...) and neither from the relay’s state when the error occurs.
RELE RL1
ON ERROR
*
Active
Inactive
<UP> <DOWN> select
<ESC> exit/cancel
The current mode is indicated by an asterisk (“ Active ” in the example): to change it,
use the
 
arrows to select the new item and press ENTER. The asterisk will indicate
your new selection. Press ESC to return to the previous menu.
Relay RL2 ( Working relay RL2 )
It is used to set the functioning parameters of the RL2 working relay.
The following screen will appear:
RELAY RL2
Mode : RH Rel.
Act Above : 80.0 %
Act Below : 20.0 %
Hysteresis : 5.0 %
On Error : Inactive
<UP> <DOWN> select
<ESC> exit/cancel
Use the
 
arrows to select the line to be modified and press ENTER to access the
corresponding submenu.
Mode
It defines the physical quantity associated to the RL2 relay. To change the quantity,
use the
 
arrows to select the line Mode and confirm with ENTER. The RELAY RL2
MODE menu will open.