Type Of Zone Line Input; Input States - Panasonic EBL128 Planning Instructions

Panasonic Electric Works Nordic AB
MEW01090 Rev: 3
5.2.1
5.2.1.1
5.2.1.2
5.2.2
5.2.2.1
5.2.2.2
5.2.2.3
For more information, see the Win128 help.
The terminal block terminals support a wire size up to 1.13 mm
mm).

Type of zone line input

Not used shall be selected for a not used input.
One of the following types can be selected.
Zone line input (EOL capacitor)
This type shall normally be used. It has the lowest zone line current
consumption since the end-of-line device is a capacitor, 470 nF (±10
%). Max. allowed cable resistance is 50 ohm. Max. allowed cable
capacitance is 50 nF. Max. allowed zone line current consumption is
1.5 mA.
EX zone line input (EOL resistor)
This type shall be used when units for Hazardous (Ex) areas shall be
connected, i.e. via the Galvanic isolator MTL5061 (2820). The end-
of-line device has to be a resistor, 10K (±5 %) with a body surface
2
area > 230 mm (supplied with the Galvanic isolator). Max. allowed
cable resistance is 40 ohm. Max. allowed cable capacitance is 70 nF.
Max. allowed zone line current consumption is 1.0 mA.

Input states

Each input will be in one of six different states.
Normal state
This is the normal zone line input state, i.e. no alarm, no fault, etc. and
the nominal voltage is 24 V DC
be reached / activated.
High current state
Max. current consumption limit
which is indicating that e.g. too many alarm points are connected.
This generates a fault condition in EBL128. From this state any other
state can be reached / activated except the open circuit state.
Alarm state
An alarm point on the zone line is in alarm state and the alarm limit
for the zone line is exceeded, which activates fire alarm in EBL128.
In this state short-circuit, open circuit, high current and low voltage
states cannot be reached / activated. After alarm reset the zone line
input will return to the normal state.
22
Allowed voltage 15-28 V DC.
23
This limit is depending on the selected input mode.
EBL128 Planning Instructions V1.1.x
22
. From this state any other state can
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for the zone line input is exceeded,
24
2
(1.2
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