Operating Instructions

Chapter 3 Point Database
20
Siemens Industry, Inc.
Owner's Manual
Descriptor
Address
1
Application
Description
FAIL TIME
109
2924, 2930
Indicates when the air volume is too far away from setpoint for
too long.
MTR SETUP
110
2924, 2930
Sets the presence or absence of a motor and its direction of
travel.
MTR1 POS
{111}
2924, 2930
The calculated position of Motor 1.
MTR1 TIMING
112
2924, 2930
The time required for Motor 1 to travel 90 degrees.
MTR1 ROT ANG
113
2924, 2930
The angle that Motor 1 rotates from fully closed to fully open.
MINHOODVOLTS
117
2924, 2930
Minimum voltage value for fume hood input range (typically
0.0V or 1.0V.
RM CO2
{118}
All
A point can be unbundled in the controller for monitoring
purposes. This point may be used in a control strategy as
occupancy increases (CO2 levels increase) in the room being
controlled.
TABLE VOLTS
{119}
2924, 2930
Editable table statement point allowing low flow functionality;
actuator voltage corresponds to TABLE FLOW value.
VTABLE PT
{120}
2924, 2930
Venturi table statement, only point that can be edited.
HI LIMIT
121
2924, 2930
Used in the determination of when the flow PID will “coast” if
near setpoint.
LO LIMIT
122
2924, 2930
Used in the determination of when the flow PID will “coast” if
near setpoint.
G OPEN LOOP
124
2924, 2930
YES commands the controller to operate in the exhaust in
Open Loop mode. No PID control will be used in this mode.
SUP MAX RATE
125
2924, 2930
The point is used to effectively limit the speed of the Supply
actuator. The default value of zero turns off this functionality.
GEX MAX RATE
126
2924, 2930
The point is used to effectively limit the speed of the General
Exhaust actuator. The default value of zero turns off this
functionality.
1)
Points not listed are not used in this application.
2)
Point numbers that appear in brackets { } may be unbundled at the field panel.