Tyco MX4428 User Manual

Page 32

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MX4428 MXP Engineering / Technical Manual

Document: LT0273

Device Information and Programming

Page 3-16

24 March 2006

Issue 1.5


Parameter Description

Default

Value Heat

Type

4

A/C – rate of rise enabled.

Mode

5

B/D – rate of rise disabled

4

P0

Heat fixed temperature pre-alarm threshold

°C 56

(

°C)

Heat fixed temperature alarm threshold

°C

57 New

Zealand

63

Australian Types A / B

P1

93

Australian Types C / D

63 (

°C)

b3:b0

ROR Pre alarm Threshold

7 (12

°C/min)

P4

b7:b4

ROR Alarm Threshold

Number + 5 gives the
Threshold in

°C/min

9 (14

°C/min)

P5

Enhancement multiplier (default 12) * 16 plus code below
Code Functional

Base

Control

Remote LED
Control

Final value
with default
enh multiplier

0

Circuit Alarm

Circuit Alarm

192

1 Circuit

Alarm Relay

193

2

Circuit Alarm

Point Alarm

194

4 Relay

Circuit

Alarm

196

5 Relay

Relay

197

6 Relay

Point

Alarm

198

8

Point Alarm

Circuit Alarm

200

9 Point

Alarm Relay

201

P6

10

Point Alarm

Point Alarm

202

192

Note – enhancement multiplier is unused for individual 814H detector settings, but must be
retained in MX4428 default settings, as the same defaults are used for the 814H and
814PH.

The following global parameters, which may be set at the MX4428, affect all applicable
points on all MXPs.

MX4428 Reference

Description

Default

8XX HEAT FD1

Heat FD1 (CV Filter)

4

8XX HEAT FD2

Heat FD2 (ROR determination)

7

8XX HEAT SL1

Heat SL1 (Fixed temp step limit,

°C/5sec)

2

8XX HEAT SL2

Heat SL2 (ROR step limit,

°C/min/5sec)

3

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