What it means
A36801 reports a DRIVE-CLiQ communications error on the path from the Control Unit (CU) to the DRIVE-CLiQ Hub Module involved. The fault cause named for this message is 10 (= 0A hex): the sign-of-life bit in the receive telegram is not set, i.e. the expected sign-of-life from the Hub Module is not arriving at the Control Unit. Depending on how the drive is configured, the same condition can also be output as a fault (F) or as a message without a reaction (N).
Why it appears
- A DRIVE-CLiQ communications error occurred on the path from the Control Unit to the DRIVE-CLiQ Hub Module involved.
- Fault cause 10 (= 0A hex): the sign-of-life bit in the receive telegram is not set.
What to check
- Check the DRIVE-CLiQ connection from the Control Unit to the DRIVE-CLiQ Hub Module involved.
- If the connection is in order, replace the component involved — the component number in the message value identifies which one it is.
Reading the message value
- The drive stores the message value in r2124 (alarm value) or r0949 (fault value), coded as 0000yyxx hex.
- yy = component number of the component involved, xx = error cause.
- For this message the error cause is 10 (= 0A hex), the missing sign-of-life bit in the receive telegram.
Parameters the manual names
- r2124 — alarm value: read the coded message value (component number and fault cause) here while A36801 is active.
- r0949 — fault value: holds the same coded message value if the condition is output as a fault instead of an alarm.
- p9916 — DRIVE-CLiQ data transfer error shutdown threshold slave: cross-referenced in the remedy of the G130/G150 manual in connection with this message.
Acknowledging and restarting
No acknowledgement is needed for the alarm: once the DRIVE-CLiQ connection to the Hub Module is OK again, the message goes away. If the drive configuration outputs the same condition as a fault, that fault must be acknowledged immediately.
The same on every family
Every manual that describes A36801 gives it the same reaction, acknowledgement and message class.
| Drive family | Reaction | Acknowledge | Message class | Component | Manual |
|---|---|---|---|---|---|
| G130, G150 | NONE | NONE | Internal (DRIVE-CLiQ) communication error (12) | Control Unit (CU) | SINAMICS G130, G150 List Manual · p. 1913 |
| S120, S150 | NONE | NONE | Internal (DRIVE-CLiQ) communication error (12) | Control Unit (CU) | SINAMICS S120, S150 List Manual · p. 3251 |
The drives this code lives on
A36801 is described for G130, G150, S120, S150. These are the converters of those families in our catalogue — price on request.
Questions technicians ask
What does alarm A36801 mean on a SINAMICS drive?
A DRIVE-CLiQ communications error occurred from the Control Unit to the DRIVE-CLiQ Hub Module involved: fault cause 10 (= 0A hex), the sign-of-life bit in the receive telegram is not set.
How do I fix A36801?
Check the DRIVE-CLiQ connection from the Control Unit to the Hub Module involved. If the connection is in order, replace the component involved.
How do I find out which component caused A36801?
Read the message value in r2124 (alarm value) or r0949 (fault value). It is coded 0000yyxx hex, where yy is the component number and xx the error cause.
Does A36801 have to be acknowledged?
Not as an alarm — it goes away once communication with the Hub Module is running again. If the drive is configured to output the condition as a fault, the fault must be acknowledged immediately.
Codes next to this one
Source
Written from Siemens' own List Manuals and operating instructions; every number, designation and parameter on this page is checked against them before publication.
All SINAMICS codes: fault and alarm codes · the A36xxx group · SINAMICS manuals · Siemens manuals