Rockwell Automation 1336VT AC DRIVE 5-300AMP (2-160KW) PROGRAMMING MANUAL User Manual

Page 26

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Local and Serial Port Parameters
Firmware Version 1.01-3.01

Chapter 3

3-12

Parameter 14 Ċ Auto Restart

Freq

P

R

P

R

Enter

Off/On
0
1
1

Read and Write
Units
Minimum Value
Maximum Value
Factory Setting

Auto Restart along with Parameters 40 and 85, affects the drive restart
sequence after a line loss condition. Parameter 40 allows the sensing of a
line power interrupt condition. Parameter 85 sets the number of times the
drive will attempt to restart after a fault.

Important: Parameters 14 and 85 require two-wire control to allow an
auto restart sequence to occur. 1336VT two-wire control requires that
Logic Interface Option L1, L2 or L3 be installed in the drive.

When Auto Restart is set to 0, the Auto Restart function is disabled. With
Auto Restart disabled, a stop input must be cycled after F01 is displayed. If
a code other than F01 is displayed, a fault has occurred. The fault code
must first be cleared by cycling the stop input or power. The stop input
must then be recycled after F01 is displayed.

If Auto Restart is set to 1 and Parameter 40 is set to 1, the Auto Restart
function is enabled. Should a line power loss occur, the drive will attempt
to restart once power is restored. Should a fault still be present (other than
F13-18 and F33), the number of times the drive will attempt to restart is
determined by Parameter 85.

When auto restart is set to 1, recycling a stop input is not required after F01
is displayed. When Auto Restart is enabled however, it inhibits F04, Bus
Undervoltage, from occurring.

With a momentary start input supplied from any source, should a drive
power loss occur, the drive will restart itself providing the DC bus has not
decayed below 200V DC.

!

ATTENTION: Auto Restart operation may only be used as
outlined in NFPA79, paragraph 6-14 (Exceptions 1, 2 and 3) for
specialized applications. Equipment damage and/or personal injury
may result if Parameter 14 settings are used in an inappropriate
application.

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