Alarm Indications; Status Indications; Table 13-4 Alarm Indications; Table 13-5 Status Indications - Emerson unidrive sp User Manual

Safety Mechanical
Product
Information information Installation
13.2

Alarm indications

In any mode an alarm flashes alternately with the data displayed on the
2nd row when one of the following conditions occur. If action is not taken
to eliminate any alarm except "Autotune", "Lt" and "PLC" the drive may
eventually trip. Alarms flash once every 640ms except "PLC" which
flashes once every 10s. Alarms are not displayed when a parameter is
being edited.

Table 13-4 Alarm indications

Lower
display
br.rS Braking resistor overload
2
Braking resistor I t accumulator (Pr 10.39) in the drive has reached
75.0% of the value at which the drive will trip and the braking IGBT is
active.
Heatsink or control board or inverter IGBT over
Hot
temperature alarms are active
• The drive heatsink temperature has reached a threshold and the
drive will trip O.ht2 if the temperature continues to rise (see the
O.ht2 trip).
Or
• The ambient temperature around the control PCB is approaching
the over temperature threshold (see the O.CtL trip).
OVLd Motor overload
2
The motor I t accumulator (Pr 4.19) in the drive has reached 75% of
the value at which the drive will be tripped and the load on the drive is
>100%
Auto tune Autotune in progress
The autotune procedure has been initialised. 'Auto' and 'tunE' will flash
alternatively on the display.
Lt Limit switch is active
Indicates that a limit switch is active and that it is causing the motor to
be stopped (i.e. forward limit switch with forward reference etc.)
PLC Onboard PLC program is running
An Onboard PLC program is installed and running. The lower display
will flash 'PLC' once every 10s.
258
Electrical Getting Basic Running the
Installation Started parameters
Description
www.controltechniques.com
SMARTCARD
Optimization
motor operation
13.3

Status indications

Table 13-5 Status indications

Upper
display
ACt Regeneration mode active
The regen unit is enabled and synchronised to the
supply.
ACUU AC Supply loss
The drive has detected that the AC supply has been
lost and is attempting to maintain the DC bus voltage
by decelerating the motor.
dc DC applied to the motor
The drive is applying DC injection braking.
dEC Decelerating
The drive is decelerating the motor.
inh
Inhibit
The drive is inhibited and cannot be run.
The drive enable signal is not applied to terminal 31 or
Pr 6.15 is set to 0.
POS Positioning
The drive is positioning/orientating the motor shaft.
rdY Ready
The drive is ready to be run.
run
Running
The drive is running.
SCAn Scanning
Regen> The drive is enabled and is synchronising to
the line.
StoP Stop or holding zero speed
The drive is holding zero speed.
Regen> The drive is enabled but the AC voltage is too
low, or the DC bus voltage is still rising or falling.
triP Trip condition
The drive has tripped and is no longer controlling the
motor. The trip code appears on the lower display.
Table 13-6 Solutions Module and SMARTCARD status indications
at power-up
Lower
display
boot
A parameter set is being transferred from the SMARTCARD to the
drive during power-up. For further information, please refer to section
9.2.4 Booting up from the SMARTCARD on every power up (Pr 11.42 =
boot (4)) on page 121.
cArd
The drive is writing a parameter set to the SMARTCARD during power-
up.
For further information, please refer to section 9.2.3 Auto saving
parameter changes (Pr 11.42 = Auto (3)) on page 121.
loAding
The drive is writing information to a Solutions Module.
Technical
Onboard Advanced
Diagnostics
PLC parameters Data
Description
Description
Unidrive SP Free Standing User Guide
Issue Number: 1
UL Listing
Information
Drive output
stage
Enabled
Enabled
Enabled
Enabled
Disabled
Enabled
Disabled
Enabled
Enabled
Enabled
Disabled