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Document No: LT0122 F3200 Installation & Programming Manual
Applications
Issue 2.7 5 July 2001 Page 9-5
CIRCUITS & ZONES (CONTINUED)
For
options A and C
in Fig 9.1.3, configure circuit Alarm Text as "manual" and voltage band
B1 as "Instant Alarm" (refer to table below).
Voltage Default Program Fan
Band State
State Control
B5 Fault Switch wiring open circuit
B4 Normal "Auto"
B3 Normal "Auto"
B2 Alarm "Off"
B1 Inst Alarm "On"
Configure the zone as non-latch, Status, non Anc1/Anc2/Bells.
In output logic, "off" is ZnD, "On" is ZnM, (for AZC number n).
For
Option B
in Fig 9.1.3, configuration is similar but in the output logic, "off" is ZnF and "on"
is ZnA.
For two AZC inputs:
┌──┐
┌───────┬─────────────────────────────┤ │+
│ ┌┴┐ └──┘
OFF o │ │2K7 AZC 1
└┬┘ ┌──┐
AUTO o───o───┼─────────────────────────────┤ │-
┌┴┐ └──┘
ON o │ │2K7
│ └┬┘ ┌──┐
└───────┴─────────────────────────────┤ │+
└──┘
AZC 2
┌──┐
│ │-
└──┘
FIG 9.1.4
FAN CONTROL WITH TWO AZCs & ROTARY (OR CENTRE-OFF) SWITCH
Program B1 for both AZCs as "Instant Alarm", Alarm Text as "Manual".
Zone 1 Alarm "Fan Control Off"
Zone 2 Alarm "Fan Control On"
Both Normal "Fan Control Auto"
Configure both zones as non-latch, Status, non Anc1/Anc2/Bells.
Fan Inputs
The exact requirement depends on the particular fan motor controller, and the contacts
available (e.g. "Run", "Fault"). Commonly "Run" is provided by an air flow switch (AFS), and
is required to connect to an AZC so that it can become part of a logic equation (as per
circuits 3 & 4 of standard module 1945-1-1/4 following).