Approximate current de-
mand with AC power supply
max. 260 mA
(120 mA stand-by)
Approximate current de-
mand with DC power supply
max. 180 mA
(80 mA stand-by)
Working temperature range -20 °C +50 °C
TERMINAL FUNCTION
SW1
On: LEDs activated to light call buttons.
O: LEDs are disabled (default setting).
HNA/102
A B C
Function
÷buttons for entering numerical codes
and for programming
button for activating an alarm or bell
button for locking relays in active state
A (green)
B (yellow)
C (green)
three LEDs indicating status of module
and functions in progress
OPERATING CHARACTERISTICS
a) Up to 100 user codes can be stored. Codes can be
3, 4 or 5 digits long, with values in the range 001 to
65535. Each code can be associated with one of the
2 relays.
b) The module features 2 relays for facilities with the
following operating features:
- programmable activation time for each relay (in the
range 1 to 65 s);
- monostable or bistable mode for each relay;
- option of locking relays in active state in monostable
mode by pressing key before the activation time is
up (to disable, enter the code again);
- option of associating relay 2 with an alarm or bell acti-
vation facility (function 09 must be enabled rst).
Activating the alarm: the relay 2 is activated by pres-
sing key before entering your user code (see fun-
ction 10 for disabling instructions).
All user codes associated with relay 1 are enabled
when the alarm is activated.
Activating the bell: the relay 2 is activated by simply
pressing key once.
To prevent false alarms being sent, the option of asso-
ciating usercodes with relay 2 is automatically inhibited.
c) When a key is pressed, an audible signal is issued
to conrm the various programming stages etc. as
follows:
- key pressed = short buzz;
- correct operation = long buzz;
- incorrect operation = three short buzzes.
d) LEDs indicate the status of the module and fun-
ctions in progress:
- green LED A, suitably programmed, it can be:
- an indicator associated with the audible signal,
- disabled,
- controlled by input I1.
- yellow LED B,
pulse = conrms facilities activated.
- green LED C,
always lit = in service,
ashing = in programming mode.
The LED lights 1 min after the unit has been powered
(during which time, the unit can be reset).
e) The keypad can be disabled indenitely by entering
a specic code, e.g. when you are away for some time
(see FUNCTION 12).
f) The keypad is locked out for a programmable time
if, after entering 20 digits, no valid code has been ente-
red (see FUNCTION 07).
g) There is an input I1 for electric contact, which can be
programmed to give it dierent functions:
activates relay 1, enables tradesman mode, or controls
green LED A (see FUNCTION 11).
h) Tradesman mode: via this function, you can enable
relay 1 only when contact I1 is closed to earth (with
external timer) and only for user codes associated with
facility 3 (see FUNCTION 03).
i) Default settings can be restored using the RESET fun-
ction (see resetting procedure).
Stored user codes and the number of digits program-
med are kept in the memory.
THE HNA/102 MODULE’S DEFAULT FACTORY
SETTINGS
PROGRAMMING CODE: 1234 (5 digits).
RESET CODE: 12 not programmable;
USER CODE on relay 1: 258.
USER CODE on relay 2: 36.
ACTIVATION TIME for relays activating facilities: 5 s.
ACTIVATION MODE for relays activating facilities:
monostable.
NUMBER OF DIGITS for user codes: 4.
Keypad LOCKOUT TIME: 10 s.
BELL: disabled.
BELL TIME: 3 s.
ALARM: disabled.
KEYPAD: enabled.
INPUT FOR CONTACT I1: controlled by relay 1.
GREEN LED A: disabled.