USER MANUAL | NOVA OCUs
20
7.
Configuring your NOVA OCU
The following configuration instructions are aimed at guiding the end user with very simple OCU configurations. More extensive
and detailed information on how to go about configuring the NOVA OCU as a trained and authorized technician is available on
the NOVA Service and Programming Manual.
Do not alter any OCU configurations unless you are a trained professional. Certain changes may lead to fatal machine
behavior. Consult the machine manufacturer or your nearest Hetronic dealer for assistance.
7.1 Logic Controller
7.1.1
ADMO Address
The ADMO address serves as a unique code identifier for your NOVA OCU. This address is essential for linking the OCU to the
MCU. It is crucial that the OCU maintains the address assigned to it at the factory. You can find the address listed on the
manufacturing datasheet provided with the radio remote control.
Tampering with the address may lead to communication failure between the OCU and MCU. In rare cases, it could
result in unintended communication with other logic controllers nearby that share the same address. Consult your
nearest Hetronic dealer if necessary.
7.2 Wireless Communication
7.2.1
Frequency Channel and Scan-Group Configuration
The NOVA logic controller for C, L, XL, XXL models is designed to accommodate the connection of two RF modules onboard,
operating either in the sub-1GHz range or 2.4GHz.
When the RF module is directly plugged onto the logic controller, the transmission frequency channel or frequency scan-group
can be configured using the PC H-Link tool.
If the RF module is not mounted onboard the logic controller as in the case of the NOVA S and some other custom NOVA OCUs,
the channel configuration depends on the SIP switch settings, as outlined in the RF module and frequency bands charts provided
in the appendix of this user manual.
Additionally, users must select the type of radio link. For a simplex link, where only the OCU transmits to the MCU, the half-duplex
parameter must be selected. For a duplex link, enabling simultaneous bidirectional communication between the OCU and MCU,
two independent fixed frequencies or scan-groups must be configured.
7.2.2
Auto-OFF Function
An OCU Auto-OFF timer feature allows users to set a timer that powers down the logic controller if the OCU remains idle for a
predefined duration. Alternatively, users can disable the Auto-OFF timer, keeping the logic controller continuously powered until
either manually switched off or automatically shut down when the critical battery voltage level is reached.
Note: For NOVA S and M models, the OCU automatic shuts down after 10 minutes of inactivity. This is determined by a physical
jumper on the logic controller and can be disabled.
7.2.3
Radio Mode vs Cable Control Mode
In certain field applications, wireless transmission may need to be muted for security reasons. In such cases, remote control over
a cable is possible if the OCU is equipped with this option.
Automatic detection of the presence of the control cable forces the OCU to shut down the wireless radio link and communicate
to the MCU over the cable in Cable Control mode.
When cable detection is disabled, the OCU only communicates to the MCU wirelessly. Section 7.9 of this user manual explains
cable operation in more detail.
7.3 DK Configuration
The logic controllers on standard NOVA OCUs support up to 32 digital channels (DK). 48 additional DKs are possible with an
optional expansion board to the logic controller. is added to the system. The 80DKs have fixed assignments corresponding to
the logic channels DK1 to DK80 and cannot be modified. The assignment of DKs to each digital control element is however
hardware configurable. Further software configuration is possible for NOVA C, L, XL and XXL through Hetronic’s PC H-Link tool.
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