Siemens 6SE7036-1EE85-1AA0 - Alarm Messages

09.02 Fault and Alarm Messages
Siemens AG 6SE7087-6AK85-1AA0
7-9
Rectifier/Regenerating Unit Operating Instructions
7.2 Alarm messages
The warning message appears periodically as A=Alarm/Warning and a three-digit in the display of the PMU A
warning cannot be acknowledged. It extinguishes automatically when the cause of the warning is eliminated.
Several messages may occur at the same time, in which case they appear one after the other in the display
If the rectifier/regenerating unit is operated with the OP1S operator panel, the warning appears in the bottom
line of the display. The red LED starts blinking first (see the operating instructions for the OP1S)
Alarm
No.
Parameter
No.
⎯⎯
Bit No.
Description Countermeasures
A015
P953
⎯⎯
14
ext.Warn 1
Parameter-programmable external warning input 1
has been activated
External warning arrived! Check whether the line to the
relevant binary input is interrupted.
Check parameter
P588 Src No Ext Warn 1.
See also Section 4.3.2.
A016
P953
⎯⎯
15
ext. Warn 2
Parameter-programmable external warning input 1
has been activated
External warning arrived! Check whether the line to the
relevant binary input is interrupted.
Check parameter
P589 Src No Ext Warn 2.
See also Section 4.3.2.
A022
P954
⎯⎯
5
LT-Temp.
The heat sink temperature is > 90 °C
or with water-cooled units:
The heat sink temperature is > 118 °C
Measure inlet air and/or ambient temperature. If ϑ >
40°C, note the reduction curves. See Section 14.1.
Check
- whether fan -E1(-E2) is connected and rotating in the
right direction.
- whether the air inlet and outlet openings are clean and
clear.
- the connection of the temperature sensor to -X30
(-X31, -X32).
With water-cooled units:
- Water inlet temperature too high, cooling circuit
interrupted or cooling water pump faulty
A025
P954
⎯⎯
8
I
2
t Warning
The I
2
t value of the power section is too high. The
warning is triggered when 90% of the permissible
I
2
t value is reached. See also under fault F022 and
parameter P785. The permissible I
2
t value is
reached at the maximum permissible load cycle
(see Section 14, Figure 14.1)
Check whether the rated DC current of the
rectifier/regenerating unit is adequate for the specific
application.
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