Ziton ZP3, Руководство по установке и обслуживанию

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Chapter 3: Field wiring
58 ZP3 Fire Control Panel Installation, Commissioning, and Maintenance Manual
See Figure 43 below. The addressable Z-Loop can be wired as a Class A return
loop, or as Class B single direction wiring, with spurs. Loop length can be up to
3,000 metres, depending upon the type, quantity and location of devices
attached. For more information see “Z-Loop parameters” on page 59.
n o p q r s ‚ t v œ ¢ £   y “ o r o x p
F
1
0
F9
F3
F2
F5
F6
F1
F8 F7
OUT
TB11 TB12 TB13 TB14
SC SC + + - -
LOOP 1 LOOP 2 LOOP 3 LOOP 4
IN
1 2 3 4 5 6
Class B wiring terminate
at panel as shown
Unused loops
to be terminated
as shown
Class A return loop
Class B single direction Loop
1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6
SC SC + + - - SC SC + + - - SC SC + + - -
When wired in Class B single direction format, then the loop terminals must be
connected (+) in to (+) out and (
í
) in to (
í
) out.
The loop is monitored for open and short circuit. Unused loops must be
terminated (+) in to (+) out and (
í
) in to (
í
) out.