3 Speed Analog 3 Wire Operating Mode

Allows selection of 3 preset speeds with 3 wire inputs. The opto inputs can be switches as shown in Figure 3-21 or logic signals from another device.

The values of the preset speeds are set in the Level 1 Preset Speeds block, Preset

Speed #1, Preset Speed #2 and Preset Speed #3.

Figure 3-21 3 SPD ANA 3 Wire Control Connection Diagram

J1-8 CLOSED allows normal operation.

OPEN disables the control and the motor coasts to a stop.

J1-9 MOMENTARY CLOSED starts motor operation in the Forward direction.

J1-10 MOMENTARY CLOSED starts motor operation in the Reverse direction.

Note: Closing both J1-9 and J1-10 at the same time will reset a fault condition.

J1-11 Momentary OPEN motor decels to stop (depending on Keypad Stop mode).

J1-12 CLOSED selects STOP/START and Reset commands from terminal strip. OPEN selects STOP/START and Reset commands from Keypad.

J1-13 CLOSED selects Level 1 Input block, Command Select parameter. OPEN selects speed commanded from Keypad.

Note: When changing from Terminal Strip to Keypad (J1-12 or J1-13) the motor speed and direction will remain the same after the change.

J1-14 Selects preset speeds as defined in the Speed Select Table (Table 3-13).

J1-15 Selects preset speeds as defined in the Speed Select Table (Table 3-13).

J1-16 If J1-16 is connected, you must set Level 2 Protection block, External Trip to “ON” to activate the opto input.

CLOSED allows normal operation.

OPEN causes an external trip to be received by the control. The control will disable and display external trip. When this occurs, the motor stop command is issued, drive operation is terminated and an external trip fault is displayed on the keypad display (also logged into the fault log).

 

 

J1

 

Analog GND

1

Command Pot or

Analog Input 1

2

0-10VDC

Pot Reference

5KW

3

Analog Input +2

 

4

 

Analog Input -2

 

5

 

Analog Out 1

 

6

 

Analog Out 2

 

7

 

Enable

 

8

 

Forward Run

 

9

 

Reverse Run

 

10

 

Stop

11

 

Run Command

 

12

 

Speed Command

13

 

Switch 1

14

 

Switch 2

15

 

External Trip

16

 

Opto In Common

17

Refer to Figure 3-26.

See recommended terminal tightening torques in Section 7.

Table 3-13 Speed Select Table

J1-14

J1-15

Command

OPEN

OPEN

Analog Input

 

 

(Command Select)

CLOSED

OPEN

Preset #1

OPEN

CLOSED

Preset #2

CLOSED

CLOSED

Preset #3

 

 

 

MN722

Receiving & Installation 3-27

Page 38
Image 38
Baldor mn722 manual Speed Analog 3 Wire Operating Mode, Speed Select Table