Westinghouse MA7200 Plus quick start manual To set parameter Bn-01 = 30.0 s

MA7200 PLUS Inverter 1 to 2 HP PID Fan and Pump Quick Start Manual

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Step 11 – Setting parameters acceleration (Bn-01) and deceleration (Bn-02) times

•Acceleration and Deceleration times as well as the PID control [(P) Proportional Gain and/or the (I) Integral Time (see STEP 11) directly control the system dynamic response. The longer the acceleration and deceleration time, the slower the system response, and the shorter time, the faster the response. An excessive amount of time can result in sluggish system performance while too short of a time may result in system instability.

The starting values suggested by this guide normally result in good system performance for the majority of fan and pump applications. If the values need to be adjusted, caution should be exercised, and the changes should be in small increments to avoid system instability.

•Parameters Bn-01(Acceleration) and Bn-02(Deceleration) are both set at the factory for 10.0 seconds. For fan and pump applications, the recommended starting values are 30 seconds. To change these parameters, follow the keypad navigation procedure as shown next.

To set parameter Bn-01 = 30.0 s

(Acceleration Time )

Keypad Steps			Resulting Display
1 - Press the	PRGM	key		An – 01 -
	DRIVE			Freq. Cmd. 1
2 - Press the	DSPL	key		Bn-01
				Acc. Time 1

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3 - Press the

4 - Press the

5 - Press the

EDIT

ENTER

RESET

EDIT

ENTER

key			Bn-01 = 0010.0
			Acc. Time 1
key 3 times; then the		Key twice	Bn-01 = 0030.0
			Acc. Time 1
key to save.			Entry Accepted
	Next set Bn-02 = 0030.0		Bn-01 = 0030.0
			Acc. Time 1

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2Seconds

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TECO – Westinghouse Motor Company