LEDI 6 – LEDI 6/S
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6 - OPTIONS
6.1 - HOURLY PIP OUTPUTS
With this option, any of the following may be obtained on terminal B4:
- 4 pips, each lasting 200 ms, delivered on the hour:
1st pip:
59 min 57 sec
2nd pip:59 min 58 sec
3rd pip:
59 min 59 sec
4th pip:
00 min 00 sec
- a one-second pip every 12 hours
- a 0.5-second pip on the second
- a one-second pip on the minute
- a one-second pip on the hour
- a one-second pip every 24 hours
- a one-second pip on the quarter hour
- an end-of-timer contact (when the timer function reaches 0 in count-down mode).
Two types of output are offered for these time signals:
Dry-contact output
- output via a relay, with contact closing on each time signal,
- characteristics of relay to be used: cut-off capability.
Open-collector output
Umax: 60 V Imax: 50 Ma
In case of an open-collector output, the ground is connected to 1.
6.2 - 12-HOUR OPTION
This version has the same characteristics as the standard version, except that the display goes from
01h00 to 12h59 (the timer format remains in 24-hour mode).
6.3 - THERMOMETER OPTION
The temperature transducer is supplied with a 4 metre cable, which may be extended up to a
maximum of 25 metres. Accuracy is to within ±0.4°C.
In the event of an indoor temperature being displayed, the transducer must be placed between 1.5
and 2 m above ground and as far as possible from any heat source.
In the event of an outdoor temperature being displayed, the transducer must be placed under cover,
in a ventilated area, to avoid any effect from direct sunlight. Greenhouse effects should also be
avoided.
6.4 - ASCII RS232 OR RS422 OPTION
ASCII RS232C link on terminal B3
ASCII RS422/485 link on terminal B3
1: GND
1: E/S -
2: TXD
2: E/S+
3:
RXD 3:
GND
This option operates in three modes:
