X1
TEMP
. SENSOR CONFIGURATION
(
sensor type & span settings
)
X1 is the main temperature sensor input that the operating setpoint relates to. The input can be set either
as a Passive (Hevac type -D sensors) (default) or as an Active type (0-10vdc) in software but must also
be selected as a passive or active type in hardware with a small jumper (CN1) on the bottom circuit
board to match the software setting. Offset (cal) adjustment is settable for both passive & active
types & for active sensors the maximum range is also adjustable ie: 10v = 20 ~ 100c
X
2
REMOTE SET POINT CONFIGURATION
A Remote Set Point device (either passive or active) can be connected to the
controller. If a passive adjuster is connected (default setting), the controller will
automatically detect and hand over set point adjustment authority to the remote
device (then ignoring the controllers UP & DOWN buttons for set point adjustment).
A (passive) remote set point potentiometer can be built into a room temperature
sensor - Hevac room sensor model SRT-D
SP
or supplied as a separate stand
alone device model SPA-D. The range of the passive remote set point is fixed at 18
to 25 degrees over 0 to 10K. If an active remote set point is used the 0-10vDC
signal is configurable from -5 to +5c for 0v & adjustable upto 100c for 10v.
HEVAC CONTROL AGENCIES PTY LTD. 7/54 HOWLEYS RD.
NOTTINGHILL, VIC. 95627888
www.hevac.com.au
21/10/19
17/2
8
LAST STATE DISPLAYED
Note if active sensor type is selected, it is also necessary to reposition a physical
input select jumper on the controller's bottom pcb. Remove screws holding the lid
to base and hinge lid to the right, locate the row of red jumpers located under the
X1-X7 terminal strip. Reposition the very left jumper to short the top two pins (V
position) for active sensor selection. The bottom two pins (T position) are used
for passive resistance type sensors selection (factory default)...SEE PAGE 19.
For active sensors also note 0v equates to 0c unless offset by the offset setting.
Note if an active 0-10vdc remote setpoint input is selected, it is also necessary
to reposition a physical input select jumper on the controller's bottom pcb.
Remove screws holding the lid to base and hinge lid to the right, locate the row
of red jumpers located under the X1-X7 terminal strip. Reposition the 2nd
jumper from the left to short the top two pins (V position) for active S/P selection.
The bottom two pins (T position) are used for passive resistance 0-10K
potentiometric type selection (factory default)...SEE PAGE 19.
For active remote setpoints also note 0v equates to 0c unless offset by the offset
setting (+/- 5c), wheras 0 k ohm = 18c (which can also be offset by +/- 5c)
(=)
