User Manual

Siemens Building Technologies Application :52 RWD62/52 - 05.2001
HVAC Products RWD62 1
RWD62/52
RWD62 Universal Controller
Application 52
Absolute limit control
Room temperature control
Chilled water control valve
Supply fan speed control
Control (P or PI)
Room temperature control
Proportional control ( 0..10Vdc ) of the chilled water valve.
Proportional control ( 0..10Vdc ) of the fan speed .
Absolute maximum and / or minimum limit control of the supply air.
Optional day / night set point adjustment .
S1
X1
X2
D1
Y1
Y2
CP
........RWD62.......
M1
Y1
RWD62/52
X1
X2
S1
Y1
Y2
PC
Room temperature sensor
Limit temperature sensor
Time clock or switch
modulating chilled water valve
fan speed controller
Personal computer
X1
Universal analogue input - main sensor
Auxiliary analogue input
Digital input
Analogue output
Analogue output
Communication port
T
Y2
TX2
• Room temperature sensor can be selected as Ni1000, Pt1000, or active sensor.
• Single cooling setpoint at Y1 – 0% output, no dead zone between Y1 and Y2.
• Adjustable proportional band of analogue output Y1.
• Adjustable proportional band of analogue output Y2.
• Adjustable Integral action function selection and adjustment for Y1 & Y2.
• Duct temperature sensor can be selected as Ni1000, Pt1000, or active sensor.
• Absolute maximum and / or minimum supply air temperature control.
• Day / night set points can be selected via time clock or switch.
Supplemental features
Control
Operating modes