Stop Input - Nice Ten TNKCE Instrucciones Y Advertencias Para El Instalador

7.3.1) STOP input

STOP is the input that causes immediate shutdown of the move-
ment followed by a brief inversion of the manoeuvre. This input can
be connected to devices with contact types Normally Open (NO),
Normally Closed (NC) or devices with a constant resistance of
8.2KΩ, such as sensitive edges.
The control unit recognises the type of device connected to the
STOP input during the self-learning phase (see paragraph "4.3 -
Learning the door opening and closing positions"); after which a
STOP command is activated whenever a variation with respect to
the learned status is detected.
When set accordingly, more than one device can be connected to
the STOP input, also different from one another:
• Several NO devices can be connected in parallel with no limit to
number.
7.3.2) Photocells
The TEN control unit is equipped with the function "Phototest" which
increases the reliability of the safety devices, enabling classification
in category 2 in compliance with the standard EN 954-1 regarding
the combination of the control unit and safety photocells.
Each time a manoeuvre is started up, all safety devices are checked
and the manoeuvre can be started only in the case of positive
results.
Connection without "Phototest" function (Figure 34 and Figure 35)
Power the transmitters and receivers directly from the control unit services output (terminals 1 - 4).
34
Connection with "Phototest" function (Figure 36 and Figure 37)
Power of the receivers comes directly from the services output (terminals 1 - 4), while that of the transmitters is from the "Phototest" output
(terminals 6 - 4). The maximum admissible current on the "Phototest" output is 100mA.
36
If two pairs of photocells are used, which may interfere with the other, activate the synchronisation mechanism as described in the photocell
instructions.
• Several NC devices can be connected in series with no limit to
number.
• Several devices with a constant resistance of 8,2KΩ can be con-
nected "in cascade" with a single terminating resistance of 8,2KΩ
• It is possible to combine two NO and NC contacts, placing them
in parallel, taking care to place a resistance of 8,2KΩ in series with
the NC contact (this also enables the combination of 3 devices:
NO, NC and 8,2 KΩ).
!
If the STOP input is used to connect devices with safe-
ty functions, only the devices with a constant resistance
of 8,2KΩ guarantee safety category 3 against faults in
accordance with the standard EN 954-1.
If however the test fails (photocell "blinded" by sun, cables shorted
etc.) the fault is identified and the manoeuvre is disabled.
For the "phototest" function, a specific connection is required of the
photocell transmitters (see fig. 36 and 37). The control unit recog-
nises the connection in "phototest" mode during the self-learning
phase (see paragraph "4.3 Learning the door opening and closing
positions").
35
37
GB
19