Rockwell Automation T6200 Compressor Anti-Surge and Capacity Controller - Manual (Page 155)

Configuration
8-35
T6200 – Variable, Alarm & Tuning Settings
Enter/verify all settings & make sure that they comply with the requirements of your application.
Ensure that these settings are defined in the Straton for MICON FB Program and Variable List.
Setting apply to each compression stage!
Table T1. - Anti-Surge Variables – Initial Settings
Name Init. Value Description
K Co-Efficient= (R2/R1)*(Za/Zs)*(1/A**2) – Enter K value from M/C Tool
M_pr_FBset M_pr Fallback Value (k-1/K*Pe), FB on Ps|Ts Fail – Verify with M/C Tool
SAFEh SAFE ‘h’ Fallback Value if Suction Press XTMR fails – Verify with M/C Tool
A Flow Co-Efficient (for Q display) – from M/C Tool
Zs Inlet Compressibility (indication, used in K and Q calculations)
Zd Discharge Compressibility (indication)
MW_Set Molecular Weight Entry (for display only, not used in surge calculations)
R1 R1 Gas Constant for Q and K calculations (EU=10.73, MU= 0.08478)
R2 R2 Gas Constant for Hp and K calculations (EU= 1545, MU= 847.80)
Table T2. - Anti-Surge and Incipient Surge Fallback (FB) Alarm Values and Limits
Name Description Value_Max Limit_Max Limit_Min Value_Min
Ps Suction Pressure
Pd Discharge Pressure
Ts Suction Temp
Td Discharge Temp
h Flow ‘h’ (Suct or
Disch)
Incip_SG SurgeGard Input
Table T3. - Anti-Surge and Incipient Surge Process (XM) Alarm Limits for Compressor
Name Description Max HH H L LL Min
Ps Suction Pressure
Pd Discharge Pressure
Ts Suction Temp
Td Discharge Temp
h Flow ‘h’ (Suct or
Disch)
Incip_ SurgeGard Input
Recommended Alarm Levels: Ps=High-Low-Min; Pd=High-Low; Ts=High; Td=High; h=Low-Min; Incip_SG= High
Table T4. - Anti-Surge Op Tracking and Surge Spike Settings
Name Init. Value Description
SP_Hv_Thr Setpoint Hover (Op Tracking) Enable % above SCL-Surge Control Line
SP_Hv_Mgn Setpoint Hover (Op Tracking) Margin (track % to Op Point)