Operating Instructions

SED2 VFD Operation & Maintenance Manual
56 Siemens Building Technologies, Inc.
Parameter Settings for the PID Controller (Commissioning)
NOTE:
The setpoint and the actual signal value display as a percentage (%). Make sure that the
two signals match each other.
FIXED SETPOINTS 1-15:
P2201 – P2215
Enter fixed setpoint.
The setpoint is active if switching command
ON is sent to Digital Input 1 (DIN1).
EXTERNAL SETPOINT:
Analog input
See Analog Inputs section for the
parameter settings.
PID SETPOINT:
P2253[0]
Set to value 2224;
fixed PI setpoint.
P0701[0]
Enter value 16;
sets Digital Input 1 (DIN1) to ON with fixed
setpoint; see Digital Inputs section .
EXTERNAL PID SETPOINT:
P2253[0]
Set to 755; setpoint is configured to AIN 1.
P0756[0]
Select the type of Analog Input 1 for the
setpoint.
P0757[0] to P0760[0]
Set scaling for Analog Input 1 (AIN1).
P0756[1]
Define the type of Analog Input 2 (AIN2) for the actual signal value.
P0757[1] to P0760[1]
Set scaling for Analog Input 2 (AIN2).
P2264[1]
Set to 755[1]; defines AIN2 as actual value.
P2306
Define the reaction of the PID controller to the actual values (0=heating, 1=cooling).
P2200[0]
Enable the PID controller (0=disable, 1=enable).
r2262
Check for setpoint (scaled PID setpoint in %).
NOTE: SED2 must be set to automatic control; DIN1 must be set to ON.
r2272
Check for actual value (scaled PID actual value in %).
P2280 and P2285
Set and optimize PID proportional gain & PID integration time.
Changeover to automatic control.