Configuration 
4/07  UDC2500 Universal Digital Controller Product Manual  37 
Function Prompt  
Lower Display 
Selection or Range of Setting 
Upper Display 
English  Numeric 
Code 
English  Numeric 
Code 
Parameter  
Definition 
I2 MIN 
or 
I2 RPM 
107 
0.02 to 50.00 
 
0.02 to 50.00 
 
These are the same as above except that 
they apply to Duplex models for the "COOL" 
zone of Heat/Cool applications or for the 
second set of PID constants. 
CYC T1 or 
CT1 X3 
108 
1 to 120   
CYCLE TIME (HEAT) determines the length 
of one time proportional output relay cycle. 
Defined as "HEAT" cycle time for Heat/Cool 
applications. 
CYC T1—Electromechanical relays 
CT1 X3—Solid state relays 
 ATTENTION  Cycle times are in either 
second or 1/3-second increments depending 
upon the configuration of RLYTYP in the 
Output Algorithm Set Up group. 
CYC2T2 or 
CT2 X3 
109 
1 to 120   
CYCLE TIME 2 (COOL) is the same as 
above except it applies to Duplex models as 
the cycle time in the "COOL" zone of 
Heat/Cool applications or for the second set 
of PID constants. 
CYC2T2—Electromechanical relays 
CT2 X3—Solid state relays 
 ATTENTION  Cycle times are in either 
second or 1/3-second increments depending 
upon the configuration of RLYTYP in the 
Output Algorithm Set Up group. 
SECUR 110 
0 to 9999   
SECURITY CODE—The level of keyboard 
lockout may be changed in the Set Up mode. 
Knowledge of a security code may be 
required to change from one level to another. 
This configuration should be copied and kept 
in a secure location. 
NOTE: The Security Code is for keyboard 
entry only and is not available via 
communications. 
 ATTENTION  Can only be changed if 
LOCK selection is NONE. 
LOCK 111 
 
LOCKOUT applies to one of the functional 
groups: Configuration, Calibration, Tuning, 
Accutune. DO NOT CONFIGURE UNTIL 
ALL CONFIGURATION IS COMPLETE. 
 
NONE   0 
NONE—No lockout; all groups are