Other Messages - Siemens SED2 Commissioning Manual

Error Cause
A0922 No load applied to the VSD (for this reason,
certain functions can differ from the functions
No load applied
active under normal load conditions, such as
to VSD
"Flying start")
A0923 Both JOG right and JOG left have been requested.
As a result, the output frequency is maintained at
Commands "JOG
the current value
left" and "JOG
right" simul-
taneously active
A0952 See F0452
Belt failure
detected

9.3 Other messages

Display Cause, diagnostics and troubleshooting
 The SED2 is busy with tasks of higher priority. This can occur when changing important parameters, for
P----
instance, when completing quick commissioning, or when resetting to the default parameters

If this message appears sporadically or constantly, and if the SED2 cannot be correctly started, the internal
power supply may be defective. In that case, the SED2 must be replaced
 Appears in the case of faulty hardware, e.g. if one of the 2 internal power supplies (DC 10 V or DC 24 V) is
-----
defective.
Rectification: Measure the DC voltages on the IO board. DC 10 V terminals 1+ and 2-, DC 24 V terminals 9+
and 28-. If one of them is faulty, replace the IO board. Then, measure the voltages again. If still faulty, replace
the SED2
 Appears when one of the pins between BOP / AOP and IO board is bent.
Rectification: Carefully bend pin back into the correct position. If this is not possible, check BOP / AOP on
deformation and replace if necessary or exchange the IO board
 Appears during restart with firmware version up to V1.30. For firmware version in use, see parameter r0018.
00010
Note that this is not an error message!
 Appears during restart with firmware version V1.40 or higher. For firmware version in use, see parameter
buSY
r0018. Note that this is not an error message
 Appears when, during a restart attempt, the ON command is withdrawn
r oFF
(at P1210 = 7)
 If an error occurs, "r oFF" might appear on the display for a short moment (although the ON command is
constantly present). In this case, the short display of "r oFF" is instantly replaced by the static display of
"buSY", and the restart process is resumed
 Essential Service Mode (Fire Mode) active
ES
Siemens
Building Technologies
Commissioning Guide
9 Display messages
Diagnostics and troubleshooting
− Check the connections of the motor cable at the VSD
− Are any contacts between VSD and motor open during
operation (service switch or contactors)?
− Check the motor connections
− Check the motor data entered for quick commissioning
− With firmware versions ≤ V1.30 and very fast switching
actions of power supply (e.g. when switching from
standby to mains supply), A0922 alarms can be
triggered, although the motor used is correctly
connected and driven by the VSD. In such cases, the
firmware must be upgraded to V1.41
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CM1G5192en
29.07.2010