Specifications

75 FB @ MIN (MINIMUM FEEDBACK VALUE)

This parameter should be set to the value of the process variable that corresponds to the

minimum transducer feedback signal (0 VDC or 4 mA).

76 FB @ MAX (MAXIMUM FEEDBACK VALUE)

This parameter should be set to the value of the process variable that corresponds to the

maximum transducer feedback signal (10 VDC or 20 mA).

NOTE: If a reverse acting feedback device is being used, FB @ MIN should be set to the

maximum process variable value, and FB @ MAX should be set to the minimum process

variable value.

77 P GAIN (PROPORTIONAL GAIN)

This parameter setting represents the speed command output (in % of maximum speed) that

results from each 1% of error (1% of Parameter 75 - FB @ MIN or 76 - FB @ MAX,

whichever is larger).

Example: If P GAIN is programmed for 5%, and the error (difference between setpoint and

feedback) is 10%, the speed command output of the Proportional term is 50% (10 x 5 = 50)

of maximum speed.

78 I GAIN (INTEGRAL GAIN)

This parameter setting represents the ramp rate of the speed command output (in % of

maximum speed per second) that results from each 1% of error.

Example: If I GAIN is programmed for 0.5 seconds, and the error is 5%, the rate of rise of

the speed command output of the Integral term is 2.5% (0.5 x 5 = 2.5) of maximum speed

per second.

79 D GAIN (DIFFERENTIAL GAIN)

This parameter setting represents the speed command output (in % of maximum speed) that

results from each 1% per second change in the error.

Example: If D GAIN is programmed for 5 seconds, and the error is increasing at 2% per

second, the speed command output of the Differential term is 10% (5 x 2 = 10) of maximum

speed.