Control Specifications:

 

 

Control method:

 

Random carrier input, 0–240Hz PWM output.

Output rating:

 

Peak overload capacity of 150% for 30 seconds

 

 

for constant torque;

PWM Frequency:

 

Random PWM for quiet motor operation.

V/Hz Ratio:

 

Linear squared reduced; base frequency; min fre-

 

 

quency limit; max frequency limit.

Torque Boost

 

Adjustable 0–25% of input voltage.

Brake Torque:

 

Optional external braking resistors available for

 

 

460VAC controls.

Frequency Setting:

 

0–5VDC, 0–10VDC, 0–20mA, 4–20mA, digital us-

 

 

ing keypad or RS232.

Accel/Decel:

 

Separate Accel and Decel rates from 0–3000 sec-

 

 

onds to maximum frequency.

Protective Features:

 

Adjustable time base overload, display fault

 

 

condition, isolated control circuitry, heatsink

 

 

thermal sensor and motor thermal monitoring.

Outputs:

 

Analog meter output, opto isolated output, relay

 

 

output.

Keypad Display:

 

 

Display:

 

7 segment and custom character display.

Keys:

 

10 key membrane with tactile response

Display Function:

Running

Output frequency, set speed %, DC link voltage,

 

Setting

motor current

 

Parameter values for setting and viewing

 

Trip

Separate message for each trip

Analog Inputs:

 

 

Operating range

 

0–5VDC and 0–10VDC (no sign), set with

 

 

parameter SIP13 (AIN1)

 

 

0–5VDC, 0–10VDC, 0–20mA and 4–20mA (no

 

 

sign), set with parameter SIP23 (AIN2)

 

 

25mA maximum input current; 24VDC maximum

 

 

input voltage

Input impedance

 

40k ohms (current input <6VDC @ 20mA)

Resolution

 

10 bits (1 in 1024)

Sample rate

 

10mseconds

6–2 Specifications & Product Data

MN735

Page 47
Image 47
Baldor MN735 manual Control Specifications, Keypad Display, Analog Inputs