FMS execution in HANA

I'm working on HANA FMS, following query giving an error.

'SELECT dbo.fNumToWords($[ORCT."CHECKSUM"]) From DUMMY'

error- 1). [SAP AG][LIBODBCHDB32 DLL][HDBODBC32] Syntax error or access violation;257 sql syntax error: incorrect syntax near "$": line 1 '' (SWEI)

Any solution?