Alarm Indications - Control Techniques Unidrive sp Kurzhandbuch

Safety Product Mechanical
Information Information Installation
Trip
UV DC bus under voltage threshold reached
Check AC supply voltage level
Drive voltage rating (Vac)
1

Alarm indications

In any mode an alarm flashes alternately with the data displayed on the 2
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 9-2 Alarm indications
Lower display
br.rS Braking resistor overload
2
Braking resistor I t accumulator (Pr 10.37) in the drive has reached 75.0% of the value at which the drive will trip
and the braking IGBT is active.
Hot Heatsink or control board or inverter IGBT over 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 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 fitted and running. The lower display will flash 'PLC' once every 10s.
Unidrive SP Short Form Guide
Issue Number: 2
Electrical Getting
Menu 0
Installation Started
Under voltage threshold (Vdc)
200
400
575 & 690
www.controltechniques.com
Running Advanced
Diagnostics
the motor parameters
Diagnosis
175
350
435
Description
UL Listing
Appendix
Information
UV reset voltage (Vdc)
215
425
590
nd
row when
55