Digital clocks – NDC Series / User Manual v. 2.11
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5.9.2 Setting of the relay switch on period {rEL}
({MEnu}→){PrG}→{rEL}→{rE0}→...→{rE15}
By this menu you set the relay switch on times {rE0} thorugh {rE15}, which correspond with the switching times
{tM0} through {tM15}, i.e. the period {tM0} corresponds with the switch on time {rE0}, etc. ({rE0} ≈ {tM0}, {rE1}
≈ {tM1}, ...). After selecting the {rEL} item, select the time {rE0} through {rE15}, and pe
riod of the switch on
state to be set with the ▲ / ▼ buttons. After confirmation with the
OK
button enter the required value.
{rE0}
Relay switch on period 0 – 99 sec (0.01 – 0.99 sec; 0.1 – 9.9 sec; 1 – 99 sec)
default 0;
...
...
...
{rE15}
Relay switch on period 0 – 99 sec (0.01 – 0.99 sec; 0.1 – 9.9 sec; 1 – 99 sec)
default 0.
The switch on period is in seconds. The value is set as a two-digit number, while the position of the decimal
point is set with the
Switch between values
button ◄/► as necessary.
If no remote output is allocated to the clock (see chapter
5.6.6 Allocation of a remote input, address setting
{roAd}
) and the clock is set as a Master, the output will be switched on simultaneously with the internal relay.
Note:
1. If the set relay on period is 0 sec, the relay will not be switched on
at the selected time
!
2. Switching of the relay is signalized by the LED in the right lower corner (after second or minute reading),
that is turned on all the time while relay is switched on.
5.9.3 Weekly calendar, setting of switch-on days {Wda}
({MEnu}→){PrG}→{W
da}
Each day in a week (Monday to Sunday) can be allocated an {ON} or {OFF} value, which defines, whether the
relay will be switched on in a given day. If the respective day has the {On} flag (e.g. during workdays Monday
– Friday), the relay switching function at the set time during a day will be active. And vice versa, if a respective
day has the {OFF} flag (e.g. weekends), the relay will not be switched on that day.
After selecting the {Wda} item, select the required day with the ▲/▼ buttons. After co
nfirmation with the
OK
button, the current value will be displayed. The required activity state (ON/OFF) can be set with the ◄/►
buttons and confirmd with the
OK
button.
{Sund}
activity on/off state ({On}/{OFF})
default {OFF};
{Mond}
activity on/off state ({On}/{OFF})
default {OFF};
...
...
...
{SAtu}
activity on/off state ({On}/{OFF})
default {OFF}.
The names of the days shown in the display are abbreviations of the English names of the days (see the table).
Display
Meaning
{Sund}
Sunday
{Mond}
Monday
{tuES}
Tuesday
{Wen}
Wednesday
{thur}
Thursday
{Frid}
Friday
{SAtu}
Saturday
6
INSTALLATION AND CONFIGURATION OF THE NDC-net
6.1 Connection into the NDC-net (Master setting, RS485 terminating resistor)
Before the connection into the communication network, individually set unique addresses for all devices that
are going to be connected into the network. Set the “A001” address to just one NDC device (clock), i.e. set it
to be the Master.
Connect the devices into the RS485 network. On the RS485 bus ending devices terminating resistors must be
connected (i.e. on the first and last devices on the bus).
Shorting jumper JP2 is accessible from back side of the clock (PCB 260-5). There is visible blinding plug in
the lower right corner of the NDC 57/x and NDC 100/x clock rear panel (see fig.). Remove the plug by gently
picking it up on the side using a flat screwdriver, avoid
scratching the paint. When the plug is removed shorting jumper
is accesible by fingers or needle nose pliers. Terminating
resistor 120R is connected by inserting a shorting jumper to the
ON position of JP2 pins.
If the jumper is in the OFF position,
terminating resistor is not connected
(see fig.).
JP2
