Rockwell Automation 1397 DC Drive Firmware 2.xx User Manual

Page 89

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4–17

Start–Up and Adjustment

Publication 1397-5.0 — June, 2001

Table 4.E
Parameter Modification Sequence

Parameter Name

Par. No.

Default

Description

User Setting

[Stop Mode Type]
[Stop Speed Level]

Feature Select Group

P.115
P.116

Coast

P.115 Selects stopping mode of the Drive in response to a normal Stop
command. P.116 sets the threshold speed below which the main
contactor will automatically open after a ramp stop or current limit stop is
asserted. This value should be less than or equal to [Min Process Speed].

[Stop Mode] default is Coast. If you wish to change modes, exit the Set
Up menu and select Stop Mode. Change the default to Ramp or Limit and
then set the [Stop Speed Level] in parameter 116.

[Max Motor Speed]

Setup Group

P.041

500 RPM

[Max Motor Speed] is the highest normal running speed of the motor.
This parameter scales the feedback device.

[Max Motor Speed] depends on several factors:
D If there is no field weakening, the top speed is typically the same as the

nameplate base speed.

D If there is field weakening, the top speed is the same as the field weak-

ened speed. Top speed is typically more than the base speed when field
weakening is applied.

[Motor Arm Amps]

Setup Group

P.045

8.0 Amps

ATTENTION: The Drive will not operate properly if
this parameter value is wrong. This parameter must be
equal to the rated armature amps on the motor
nameplate. Failure to observe this precaution could
result in damage to or destruction of the equipment.

!

The rated armature current from the motor nameplate.

[Motor Field Amps]

Setup Group

P.044

0.01
Amps

It only needs to be set if a regulated field supply is installed. Sets the
motor rated hot field amps from the motor nameplate. Scales the field
current feedback.

[Motor Arm Volts]

Setup Group

P.046

240
Volts

1

The rated armature voltage from the motor nameplate.

[Feedback Type]

Setup Group

P.039

Arm Volt

1

[Feedback Type] selects the type of feedback signal that is used for the
speed/voltage loop. [Encoder] can be selected only if a pulse tachometer
kit is installed.

[Feedback Type] causes the [Neg Current Lim] (step 16) to be set to 0
and [Reverse Disable] (step 4) to be set to On if:
D AC Tach is selected.
D Pulse Tach is selected and [Encoder Quad] is set Off.

[Anlg Tach
V/1000]

Setup Group

P.047

18
V/1000
RPM

1

This parameter only needs to be set if [Feedback Type] was set to AC
Tach or DC Tach.

[Anlg Tach V/1000] is the analog tachometer scaling from the tachometer
nameplate in volts per 1000 RPM. Units are volts DC for DC tachometers
or volts AC RMS for AC tachometers.

This parameter might be limited to less than 200.0 volts/1000 so that
voltage from the tachometer will not be more than 250 V.

ATTENTION: Failure to set the Analog Tach Voltage
range correctly can cause an overspeed condition.

!

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