19
see 7.4
6.
Start-up
6.1
Operation with transponders
Hold the transponder approximately
.
Without transponder transmission (5 sec. after the last transmission), the
automatically
switches from active mode to low current mode and thus reduces the current consumption on
average to <11 mA.
If the transponder is used in conjunction with a reader in low current mode, it may take
up to 1.2 sec. until it starts operating. Evaluation takes place within 0.9 sec. when the
read mode is activated.
For mounting surfaces of metal, the transmission range of the transponder may be lower
than that of non-metallic surfaces. In this case, we urgently recommend adjusting the
range (
).
in the middle of the keypad
In order to achieve a greater transmission range when using the transponder, a relatively high
current is required during transmission (<50 mA).
reader
Mounting and Connection Instructions -
026421
Novar R/W reader with keypad
6.2
Manual address allocation via reader keypad, stand alone mode
(RS-485 only)
With this form of address allocation a
is not possible. This means that an address
collision may occur later during operation. (Double or multiple addressing).
Reconnect the reader
to the operating voltage (12 V DC).
(1 or 2
)
nd
OK
AC central control unit
AC central
control unit
plausibility check
Allocate address
ouble or multiple addressing within one system!
only
The address can be overwritten as long as the reader has not been linked by the AC central control
unit and the operating voltage is not interrupted.
:
If the reader is connected at a later stage to the
, the entered
address is transmitted together with the unique number of the reader to the
and stored.
Clear address
Avoid d
Note
Enter the address via the keypad
digit a
confirm with the
button (
).
An address is
when the
and
are pressed simultaneously and keep
pressed whilst the operating voltage is re-applied.
3
Overwrite address
cleared
keys "1", "7"
"X"
When the
operating voltage is interrupted, the address is saved in the reader.
An address can also be deleted in the programming mode „Stand alone“ (see 7.2)
20
I
The activated adjustment mode is indicated at
the reader by the bottom green LED that
flashes briefly twice followed by a long pause.
Mounting and Connection Instructions -
026421
Novar R/W reader with keypad
F
I
Activate
adjustment mode
7.4
Adjustment mode - range
In the adjustment mode you can alter the transmission range between the reader and the
transponder. Note that the distance does not fall short of or exceed a minimum/maximum range
depending on the mounting surface.
Basically, the range should be adapted to a metal mounting surface. It is assumed that the maximum
possible transmission range is lower on a metallic surface than on a non-metallic surface.
Hold a transponder at the required distance to the reader. The reading unit in the reader alters the
power of the electromagnetic field in stages (16 stages from max. to min.) and checks at which power
stage the transponder can still be read error-free. This cycle is repeated twice. The value determined
in this manner is stored non-volatile in the reader (until the next adjustment) and can be used for
future applications as a limit value for the maximum possible range.
This range adjustment is not highly precise. This mode serves primarily to ensure that the
reader operates correctly on a metallic mounting surface.
Press key "3" to activate the adjustment mode.
Adjustment process:
Activate adjustment mode:
7.
Stand alone programming mode
To program in this mode, only the 12 V DC operating voltage is required.
Press the 3 keys (with the symbols as shown) simultaneously and keep pressed. Apply
the operating voltage. As soon as the programming mode is activated, the three LEDs
flash every second. Release keys.
7.1
Activate programming mode
7.2
Clear address
7.3
Load standard values
Activate
to clear an already allocated address.
Activate
to create the condition on delivery:
-
Range:
-
Illumination:
no-load status when no operation
-
Transponder detection:
cyclical actuation (low current mode)
An already allocated address is not altered.
key "1"
key "2"
³
6 cm with ID cards
