Manual

P45 SPEED AT MIN SIGNAL

This sets the speed at which the drive will run when it receives the minimum speed reference signal (0

VDC or 4 mA). This is used in conjunction with SPEED AT MAX SIGNAL (Parameter 46) to define

the speed range of the drive when following an analog speed reference signal.

P46 SPEED AT MAX SIGNAL

This sets the speed at which the drive will run when it receives the maximum speed reference signal (10

VDC or 20 mA). This is used in conjunction with SPEED AT MIN SIGNAL (Parameter 45) to define

the speed range of the drive when following an analog speed reference signal.

NOTE: If SPEED AT MIN SIGNAL is set higher than the SPEED AT MAX SIGNAL, the drive

will react inversely to the speed reference signal. Therefore, as the speed reference signal increases, the

drive speed will decrease, and vice-versa.

B.7 SM-Plus

™

PI CONTROL WIRING EXAMPLES

The following diagrams illustrate the most common PI control configurations. The wiring and

corresponding parameter settings are given. In these examples, TB-13A is use to select the setpoint

reference (TB-13B or TB-13C could also be used for this function). The examples show a 2-wire

start/stop circuit.

Example 1: Keypad Setpoint and 4-20 mA Feedback

• Set PI MODE (Parameter 61) to NORMAL 4-20 mA (02) or REVERSE 4-20 mA (04) depending

on the system. Refer to section B.1 to determine whether the system is normal or reverse acting.

• Set TB-13A FUNCTION SELECT (Parameter 10) to KEYPAD SETPOINT (12).

• Close TB-13A to TB-2 to put the drive into PI mode. The ▲ and ▼ buttons can then be used to

adjust the PI setpoint.

1 2 5 6 11 12 2 14 13A 13B 13C 15 25 2

Keypad Setpoint Select

(P1 Mode Enable/Disable)

4-20 mA

Feedback

Start/Stop

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