Rockwell Automation 23P PowerFlex Digital DC Drive User Manual

Page 143

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Rockwell Automation Publication 20P-UM001K-EN-P - July 2014

143

Programming and Parameters

Chapter 3

MO

TO

R C

O

NT

ROL

Te

st

G

ene

rator

166

[Alpha Test]
Diagnostic test mode that selects the SCR bridge to activate. The SCR firing
angles are specified by Pars 167 [Arm Test Angle] and 168 [Fld Test Angle].
Important: Alpha Test is an open loop diagnostic tool that requires a
hardware Enable input be wired and functional at the terminal block.
Reading Alpha Test Mode on page

273

is required before completing this test.

0 = Off
1 = Armature Fwd
2 = Armature Rev
3 = Field Fwd
Note: This parameter was added for firmware version 3.001.

Default:

Options:

0 =

0 =
1 =
2 =
3 =

“Off”

“Off”
“Armature Fwd”
“Armature Rev”
“Field Fwd”

16-bit
Int

167,
168

167

[Arm Test Angle]
Sets the armature SCR firing angle for the Armature Forward and Armature
Reverse tests. 180 deg = minimum voltage, 5 deg = maximum voltage. This
parameter is only changeable while the Armature Alpha Test is selected.
Note: This parameter was added for firmware version 3.001.

Default:

Min/Max:
Units:

180

0 / 180
deg

Real

166

168

[Fld Test Angle]
Sets the field SCR firing angle for the Field Forward test. 180 deg = minimum
voltage, 5 deg = maximum voltage. This parameter is only changeable while
the Field Alpha Test is selected.
Notes: This parameter was added for firmware version 3.001.

Default:

Min/Max:
Units:

180

0 / 180
deg

Real

166

213

[SCR Diag Test En]
Enables/Disables the SCR diagnostic tests. Both tests can be enabled simultaneously, but the “Shorted SCR” test will take precedence over the “Open SCR”
test. Note: This parameter was added for firmware version 6.001.

214,
215,
216,
217,
218

Fil

e

Gr

oup

No

.

Parameter Name & Description

See

page 114

for symbol descriptions

Values

Da

ta

T

yp

e

Rela

ted

A

ATTENTION: Allow only qualified electrical personnel familiar with the construction and operation of this
equipment and the hazards involved to perform this test. Failure to observe this precaution could result in equipment
damage and/or bodily injury.

ATTENTION: This is an open loop test, disconnect the motor armature and field leads and replace them with dummy
loads. Failure to observe this precaution could result in machine damage and/or bodily injury.

ATTENTION: Uncontrolled machine operation could result with a motor connected during these tests and may cause
personal injury and/or equipment damage. Verify that the drive is not connected to a motor armature circuit before
enabling these test modes.

A

A

A

Options

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Re

ser

ve

d

Shor

tSCR T

st

Op

en

SC

R T

st

Default

x

x

x

x

x

x

x

x

x

x

x

x

x

x

0

0

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

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