USER MANUAL | NOVA OCUs
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7.4 AK Configuration
Standard NOVA OCUs support up to 16 configurable analog channels (AK). Each AK channel can be independently hardware
assigned to a particular control. When no control element is assigned to the AK, the corresponding channel remains unused and
automatically assumes a safe logic neutral state. Refer to Service and Programming Manual for instructions for a more detailed
explanation of analog channel assignments and associated logic possibilities.
7.5 Inactivity Warning
This feature is primarily utilized in applications where one or more control functions need to remain continuously active, thus
requiring enhanced monitoring for abnormal conditions. Up to 14 time based triggers can be configured, each with an independent
trigger signal and timer.
Once any of the configured timers is triggered, a Level 1 Warning signal is generated, subsequently triggering a visual or audible
output on the OCU depending on how the logic controller is configured. The Level 1 Warning signal is reset when the input trigger
is disabled. Upon activation of the Level 1 Warning signal, a second independent timer is automatically initiated to monitor its
presence. If the Level 1 Warning signal persists throughout the duration of the second timer, a Level 2 Warning signal will activate
if one is configured. The Level 2 Warning signal can also trigger an output and remains active until the next system power cycle.
When a logic output signal is employed as a trigger, the corresponding timer resets each time one of the inputs of the logic signal
changes state.
Note: This function is not available on NOVA S and M models.
7.6 Multi-Address Mode
When configured, this function allows the OCU to control a pre-set number of different MCUs independently and one at a time,
depending on the remote machine selected by the user. Different MCUs associated with different controlled equipment are
assigned distinct addresses, an offset value configurable from 1 to 999 relative to the base ADMO address of the OCU.
OCUs equipped with this function include a selector switch which is associated with the Enable/Select DK Switch parameter on
PC H-Link configuration tool. Incrementing or decrementing the address offset is only possible whenever the assigned
Enable/Select DK Switch is active. Refer to the OCU layout technical drawing for a definition of the DKs associated with your
particular NOVA OCU.
Increment DK switch and Decrement DK switch are the configured DKs allowing changes to the current base address of the logic
controller with the corresponding offset value. Possible DK values are DK11 to DK80. These DKs can be configured to offset the
base address by a value of 10 or 100 for faster selection. The configured DK switches are also outlined on the OCU layout
technical drawing.
The Confirm DK switch is used to confirm the change in the base address offset. It accepts assignments from DK11 to DK80.
Here again, the configured values are denoted on the the OCU layout technical drawing.
Note: This function is not available on NOVA S and M models.
Tampering with multi-addressing may lead to communication failure between the OCU and MCU. It could also result in
unintended control of machinery other than the selected one. Make sure this configuration is thoroughly checked by a
trained authorized person before the OCU is operated. Consult your nearest Hetronic dealer if necessary.
7.7 Optional Functions
7.7.1
Tilt Sensor
Tilt sensing requires the NOVA OCU to be equipped with the optional tilt sensor. This two-axis sensor allows for detection of tilt
and subsequently the generation of warnings to the end user when the OCU is tilted beyond a preset angle. The sensor allows for
independent monitoring of the minimum and maximum tilt thresholds up to 90° for each axis. The generation of user warning, in
the form of a visual, audible or haptic one can be assigned a time delay from the instant the tilt threshold is exceeded. This time
can be adjusted from 1 to 60 seconds. The configuration of the tilt sensor cannot be done via PC H-Link software and must be
done directly on the tilt sensor itself.
7.7.2
Palm Sensor
The NOVA M 4L, L (excluding 2.4), XL, and XXL variants can be optionally equipped with a capacitive sensor in the palm bars
(handles). The sensor can be configured to provide “man-down” detection or alternatively to force two hand operation of the
OCU. The sensitivity of the sensor can be adjusted for different scenarios, like for example the wearing of leather or rubber gloves
through software using the PC H-Link tool.
7.7.3
Proximity Detection Sensor
This module operates in the 2.4GHz band to measure the distance between two nodes contained within a specific range and
communicate between them. By using a Proximity Detection Module in a paired OCU and MCU, the location from where the
operator can stand to operate the system can be chosen. The user can choose to either operate the system from within the
configured distance to the receiving PDM node or else from outside the configured range.
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