7
When the power and the Afnor signal are back then the clock is set to the correct time.
When the power is back but not the Afnor signal, the hands are driven to 12h00.
It is compulsary, for a correct running, to respect the following parameters.
These parameters are calculated considering 8/10 mm wire section with 1A (Microquartz Delta).
Number of clocks
Distance 24VDC 15VDC
100 m 71 32
200 m 41 16
300 m 27 10
400 m 20 6
500 m 16 6
600 m 13 5
1 km 8 3
3.4 DHF Clocks with TBT power supply
Connect the low voltage (TBT) power supply (6 to 16V DC)
to the connectors 1 and 2: maximum 1,5 mm2 wire section
(5mm bare).
No polarity to respect.
IV - SETTING
NOTA : to respect the security rules, the time distribution network must be be SELV-type.
4.1. Impulses slave clock
A time distribution network emits only impulses, so that it is necessary to set the clock at the time
of this network.
To add a clock on a network, it is not necessary to stop this network. It is enough to set on time
and when it will received the next impulse from the master clock, it will add a unit (Minute, ½
minute or second according to the impulses type).
½ minute and minute 24V // receiver,
- Connect the time distribution network to terminals 1 and 2 on
the terminal strip (3).
Leave works 2 minutes.
- If the clock, or one of the clocks in case of a double side
mounting, is one minute (or ½ minute according to the
movement type) late: stop the emitter, reverse the connection
on terminal (3) and put the clock forward 2 minutes (or 1
minute), then restart the emitter.
In fact, the same impulse is either positive or negative according
to the way to connect and the initial position of the movement, it will take or not the rst impulse.
Number of
clocks
Distance in m
24VDC 15VDC
1 8300 3200
10 830 320
20 415 160
30 275 105
40 208 75
50 165 45
1
2
TBT
1
3
2
3
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