Lync AEGIS Controller
8: APPENDIX D
L-OMM-013_A
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By setting ON the
“Enable supervision” variable (parameter RC01) the digital input ID1 (general
ON-OFF) is ignored, and the unit ON/OFF switching can be controlled by the parameter
RC02.
The variable "Hot water request by:" (parameter RC03) is used to select whether hot water
demand for the user) is given by the status of the digital input ID2 or by the external
supervising controller input.
The two typical situations are:
•
Unit ON/OFF via BMS only: set RC01 = 1; RC03 = 1
Use the parameter RC02 to switch the unit ON and OFF
•
Local hot water demand (mechanical thermostat or third-party PLC), BMS used for
forced shutdown: set RC01=1; RC03=0.
Use the parameter RC02 to switch the unit OFF. The start of the unit depends both on the
parameter RC03 and the physical state of the digital input ID2.
NOTE:
in the first case, when the controller is in remote control mode, it is no longer switched off
by digital inputs. To prevent the machine from constant operation, there is a maximum operation
time after which the remote switch-on control is disabled (RC04). To permanently control in
remote mode, this time must be set to 0.
Modbus Address
Paramete
r
Description
Meaning
17547
RC01
Enable supervision Not enabled
Enabled
17548
RC02
General switch-
on/off
OFF
ON
17549
RC03
“Hot Water request
by”
Digital input
Supervision
16557
RC04
Maximum operating
time under
supervision
Supervision
always enabled
If ≠0 indicates the time in
minutes, after which
supervision is disabled
When the two digital inputs are activated, both the word ON and the full dot under
“HWr”
will be shown on the controller.
To summarize:
