Siemens SIMOREG DC Master 6RA7028-6DS22 Operating Instructions Manual page 390

Faults / Alarms
Alarm
No.
I 2 t motor monitor has responded
A037
(active in operating states of – –, I, II)
This monitoring function responds when an I 2 t value is reached which corresponds to the final temperature at 110% of the rated
motor armature current.
A038 Overspeed
(active in operating states of – –, I, II)
The monitoring function responds if the actual speed value (selected in P595) exceeds the positive (P512) or negative (P513)
threshold by 0.5%.
Possible causes
•
Lower current limit has been input
•
Current-controlled operation
•
P512, P513 are set too low
•
Tachometer cable contact fault in operation close to maximum speed
I 2 t value of power section too high
A039
(active in all operating states)
This alarm is activated if the permissible I 2 t value for the relevant power section is reached. At the same time, the current limit
is set to P077 * 100% of the converter rated DC current. This limit is not cancelled again until the setpoint drops below 100% of
the converter rated DC current. See also Fault F039 and Parameter P075.
A043 Autometic field current reduction if EMF is too high in operation
(active in operating states of – –, I, II)
This alarm is active only when parameter P272=1 and activated if the following equation applies to firing angle α (armature)
before limitation (K101):
α > (α W (inverter stability limit acc. to P151) – 5 degrees) or , at a low (pulsating) current
α > (165 degrees – 5 degrees)
The field is reduced simultaneously with A043, implemented through control of the armature firing angle to (α W (or 165
degrees) - 5 degrees) using a P controller whose output reduces the EMF controller setpoint. For this reason, "Field current
setpoint input through internal EMF control" (PO81=1) must be parameterized.
When a tchange in torque direction is requested, both torque directions are inhibited until the calculated control angle (K101) is
<165 degrees for the armature current requested in the new torque direction, i.e. until the field, and thus the EMF, have been
reduced accordingly.
See also parameter P082.
A044 An alarm is active on one slave connected to the paralleling interface
(active in all operating states)
A046 Analog select input for main setpoint (terminals 4 and 5) faulty
(active in operating states of ≤ o6)
This alarm is activated when P700=2 (current input 4 to 20 mA) and the input current is less than 3mA.
A047 Analog select input 1 (terminals 6 and 7) faulty
(active in operating states of ≤ o6)
This alarm is activated when P710=2 (current input 4 to 20 mA) and the input current is less than 3mA.
A053 Alarm message from free function block FB258
(active in all operating states)
The binector connected via parameter U106 Index.002 is in the log. "1" state
A054 Alarm message from free function block FB259
(active in all operating states)
The binector connected via parameter U107 Index.002 is in the log. "1" state
A059 Remaining time for temporary enabling of the S00 technology option is now less than 50 operating hours
(active in all operating statuses)
Remaining time for temporary enabling of the S00 technology option is now less than 50 operating hours. The functions will
soon be unavailable.
If you wish to continue using technology option S00, please contact to your nearest Siemens Regional Office for a PIN number
for permanent enabling of technology option S00.
You will need to know the serial number of your SIMOREG DC Master. For further details, please refer to the description of
parameters U977 and n978 in Chapter 11 of the Parameter List.
A067 Converter cooling faulty
(active in all operating states)
The heatsink temperature is > 90 °C.
The monitoring function is activated 6s after the electronics supply is connected.
(The current heat sink temperature is indicated at parameter r013 and on connector K050)
10-26
Description
SIMOREG DC Master
02.00
SIEMENS AG 6RX1700-0AD76
Operating Instructions