Rockwell Automation SP600 AC Drive User Manual Version 1.0 User Manual

Page 244

13-12

SP600 AC Drive User Manual

Decel Inhibit

The drive is not
following a commanded
deceleration because it
is attempting to limit bus
voltage.

1. Verify input voltage is

within drive specified
limits.

2. Verify system ground

impedance follows
proper grounding
techniques.

3. Disable bus regulation

and/or add dynamic
brake resistor and/or
extend deceleration
time.

Drive
OverLoad

Drive rating of 110% for
1 minute or 150% for 3
seconds has been
exceeded.

Reduce load or extend
Accel Time (140).

Excessive
Load

Motor did not come up
to speed in the allotted
time.

1. Uncouple load from

motor.

2. Repeat Autotune (61).

FluxAmpsRef
Rang

The value for flux amps
determined by the
autotune procedure
exceeds the
programmed Motor NP
FLA (42).

1. Reprogram Motor NP

FLA (42) with the
correct motor
nameplate value.

2. Repeat Autotune (61).

Function Loss

Function loss input is
open.

Check remote wiring.

Ground Fault

A current path to earth
ground greater than
25% of drive rating.

Check the motor and
external wiring to the drive
output terminals for a
grounded condition.

Heatsink
OvrTemp

Heatsink temperature
exceeds a predefined
value of 90

°C (195°F).

1. Check for blocked or

dirty heat sink fins.
Verify that ambient
temperature has not
exceeded 40

°C (104°F)

NEMA Type 1 installations
or 50°C (122°F) for Open
type installations.

2. Check fan.

Table 13.6 – Fault Descriptions and Corrective Actions (Continued)

Fault

No.

Description

Action