Electronic Pot 2 Wire Operating Mode

Provides speed Increase and Decrease inputs to allow EPOT operation with 2 wire inputs. The opto inputs can be switches as shown in Figure 3-24 or logic signals from another device. The values of the preset speeds are set in the Level 1 Preset Speeds block, Preset Speed #1 or Preset Speed #2.

Figure 3-24 EPOT, 2 Wire Control Connection Diagram

J1-8 CLOSED allows normal operation.

OPEN disables the control and motor coasts to a stop.

J1-9 CLOSED starts motor operation in the Forward direction. OPEN motor decels to stop (depending on Keypad Stop mode).

J1-10 CLOSED starts motor operation in the Reverse direction. OPEN motor decels to stop (depending on Keypad Stop mode).

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

J1-11 Selects preset speeds as defined in the Speed Select Table (Table 3-16).

J1-12 Selects preset speeds as defined in the Speed Select Table (Table 3-16).

J1-13 CLOSED selects ACC / DEC / S-CURVE group 2.

OPEN selects ACC / DEC / S-CURVE group 1.

J1-14 Momentary CLOSED increases motor speed while contact is closed.

J1-15 Momentary CLOSED decreases motor speed while contact is closed.

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

 

Switch 1

11

 

Switch 2

12

 

Accel/Decel

13

 

Increase

14

 

Decrease

15

 

External Trip

16

 

Opto In Common

17

Refer to Figure 3-26.

See recommended terminal tightening torques in Section 7.

Table 3-16 Speed Select Table

J1-11

J1-12

Function

OPEN

OPEN

Electronic Pot

CLOSED

OPEN

Command Select *

OPEN

CLOSED

Preset #1

CLOSED

CLOSED

Preset #2

 

 

 

*Command Select refers to the Level 1 Command Select parameter.

MN722

Receiving & Installation 3-31

Page 42
Image 42
Baldor mn722 manual Electronic Pot 2 Wire Operating Mode, Speed Select Table, J1-11 J1-12 Function