CBV-2U4-3T(-N) |
Control Sequence Overview
©ABB 2022 All Rights Reserved.
Subject to change without notice
WWW.CYLON.COM
53
M
AN0
13
9
re
v
14
TEST AND BALANCE
A point has been set up to allow test and balance commands to be sent to individual boxes, or groups of boxes,
to set the primary air damper to max Flowrate, deadband Flowrate, full open, full closed, etc. These commands
may be used to calibrate the air flow sensor and balance the boxes.
GroupXTABCode R/W
With the default GroupXOccCode of group 0, the box will respond to writes to
(A77). If the
box is set to another GroupXOccCode group, the corresponding point will be used:
Group1TABCode
(A80),
Group2TABCode
(A85) or,
Group3TABCode
(A87).
The TAB code default value of 0 allows normal operation. Setting the point to any of the values below will
override the Flowrate setpoint for the primary air damper to the indicated value.
•
(A77) -typical for all 4 groups
BIT
FUNCTION
OFF VALUE/ON VALUE
OFF STATE/ ON STATE
0
(D131)
0,1
normal, control damper to max
Flowrate stpt
1
(D132)
0,2
normal, control damper to deadband
Flowrate stpt
2
(D133)
0,4
normal, control damper to aux (heat)
Flowrate stpt
3
(D136)
0,8
normal, drive damper full open
4
(D137)
0,16
normal, drive damper full closed
Note:
default value for each item is “Off Value”
PriAirModeEnumeration (A208) RO
This point displays the current On/Off Air State as commanded by the GroupXOccCode.
•
(A208)
VALUE
FUNCTION
0
On
1
Off: Normal
3
Off: Fire Stop
PriDamperCmdEnumeration (A219) RO
This point displays the primary air damper’s current control state as commanded by
GroupXTABCode.
•
VALUE
FUNCTION
0
Off
1
Open
2
Close
8
Open Manual
16
Close Manual
32
Close Fire Stop
Содержание CBV-2U4-3T
Страница 1: ... USER GUIDE MAN0139 rev 14 CBV 2U4 3T N ...
Страница 75: ......