Siemens Synco 200 - Implementation: Supply air temperature control

9.2.8 Implementation: Supply air temperature control
9.2.8.1 Activating supply air temperature control
Supply air temperature control is always activated for controller 1, basic type A.
For controller 1,
basic type A
This control process need not be specifically activated (factory setting).
9.2.8.2 Operating principle
PID control maintains the supply air temperature at the adjusted setpoint.
PID control.
9.2.8.3 Troubleshooting
When you leave the commissioning menu, the universal controller checks whether
a supply air temperature sensor is connected and then responds as follows:
Supply air temperature
sensor present?
• If, at that time, the supply air temperature sensor is present but is missing later,
the controller generates a sensor error message is delivered and presented on
the display:
– "Xx ---" => sensor missing
– "Xx ooo" => short-circuit
• If there is no supply air temperature sensor (main controlled variable in this
case) from the start, the plant will be shut down (MAINALM)
9.2.8.4 Settings
Path: … > COMMIS > CONF > CTLOOP 1
Configuration
Display Name Setting
STRATGY Control strategy ---
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Siemens Universal Controllers RLU2… CE1P3101en
Building Technologies Controller (CTLOOP x) 29.08.2008