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USER MANUAL | NOVA S
NOVA S Operator Control Unit
Powering ON the OCU
Unlike the other NOVA OCUs, the NOVA S does not have a power key switch. Instead, this OCU powers up either via a push button
on the side or top of the OCU (normally, this will be green in colour) or with the operation of a toggle switch. In many cases, the
‘ON’ switch will also activate ‘Start’ function, if these are on the same control switch. The specific button/switch will be indicated by
the standard ON (I) and Start (
) symbols. If these are on separate switches then the ‘Start’ operation must always be carried out
after switching the OCU ON, so as to enable communication with the MCU. In some cases, the Start function is also combined with
the Horn function (
).
Stop Control from the OCU
Press the STOP button. This will automatically make the system ignore any other signal that is transmitted and switch OFF the
OCU.
Powering OFF the OCU
The OCU will power OFF through any one of the following options:
1)
Manual activation of the STOP switch.
2)
STOP function is automatically triggered due to an abnormal situation, such as for example, OCU and MCU are out of range
3)
Auto-OFF timer has elapsed during which time interval no operational activity was detected.
4)
Battery has been discharged below critical level.
OCU Automatic Shut Down
The logic controller inside the OCU can be hardware configured with a 10-minute inactivity timer, after the OCU is powered off.
Battery State-of-Charge Indicators
The onboard buzzer starts beeping fast when the battery reaches critical charger level. The status LED on the OCU blinks fast
during this event.
Battery Charging
NOVA S OCUs are powered up by Hetronic rechargeable NiMH 3.6V MINI battery inserted in the battery compartment in the bottom
side of the OCU. These batteries are only compatible with Hetronic UCH-2 battery chargers. Follow the instructions in the UCH-2
battery charger user manual to ensure best performance of your OCU and prolonged battery lifetime.
Cabled Battery Back-up and Tethered Control
Cable control on NOVA S OCUs is only possible through the battery compartment using the cabled battery back-up option. Follow
the instructions provided in section 7.8 of the user manual for further guidance.
Pairing the NOVA S to a new MCU
The NOVA S OCU can only be paired with a new MCU by exchanging the ADMO keys inside the OCU with pre-programmed ones.
Follow section 7.9 of the user manual for further instructions.
Accessories and Spare Parts
The NOVA S OCU comes with a standard belt clip which can be attached to the belly belt specifically designed for the OCU. Refer
to the online web shop for respective part numbers of any other parts that may need replacement:
https://shop.hetronic.com.mt/en/home
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