Ziton ZP3, Установка, эксплуатация и обслуживание

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ZP3 Fire Control Panel
Field Wiring
ZP3 Fire Control Panel Manual
UD1160.5 Iss 6 (25/02/2005)
Page 5 - 11
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5
5.5.2 ZP3AB-MA8 Monitored Output Board
This is a programmable output board with 8 separate outputs, designed to drive fire alarm
sounder or control outputs. Outputs monitor the circuit field wiring for open-circuit and short-
circuit faults, and report to the panel should a fault occur. The outputs operate on a reverse
polarity basis, being set to one polarity for normal, and reversing polarity for alarm. Outputs
must be polarized with a polarizing diode (these are often internally fitted on sounders). The
outputs are wired in 2-wire class-B single direction format. They must be daisy-chained from
point-to-point, without spurs. Circuits must be terminated with a 2K2 ohm "end-of-line"
resistor at the last device on the circuit.
Each output is allocated a unique address, and programmed to operate from selected inputs
using the I/O-mapping function built into the panel. The ZP3AB-MA8 board connects to the
ZP3panel control bus. If allocated to the UserBus section, up to 768 addresses are
available. These outputs are freely programmable. If allocated to the SystemBus section, a
further 256 addresses are available, which have pre-programmed functions.
Each board is fitted with a dipswitch, which is set to an address between 000and 255. This
determines the address of each output, as specified in the "Software Configuration" Section.
Each output provides 24 vdc in alarm, and can drive a maximum circuit load of 1Ampere. If
outputs are used to switch inductive loads, they should be protected with a flyback diode.
The load is provided from the 24 vdc supply connected to the power input terminals. If
connected to the ZP3 panel auxiliary power supply terminals, then this load will be supplied
from the built-in ZP3 power supply. If connected to an external 24 vdc power supply, then
this will supply the load. If externally supplied, do not common the power supplies.