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3.6.3
Cavro® XLP 6000 Modular Syringe Pump Operating Manual, 734237-C, en
Error Code
Description
10 (0Ah)
Valve Overload. This error occurs when the valve drive loses incre-
ments by blockage or excess backpressure. The pump must be reini-
tialized before normal operation can resume. Sending another Valve
command reinitializes the valve and sets it to the correct location.
Continual valve overload errors are an indication the valve should be
replaced.
11 (0Bh)
Plunger Move Not Allowed. When the valve is in the bypass or
throughput position, Plunger Movement commands are not allowed.
12 (0Ch)
Internal failure. If this error occurs, please call Tecan Systems Tech-
nical Services. See Chapter 6, "Technical Service."
14 (0Eh)
A/D converter failure. This error occurs when the internal
A/D converter is faulty. If this error occurs, please call Tecan Systems
Technical Services. See Chapter 6, "Technical
Service."
15 (0Fh)
Command Overflow. This error occurs when action commands are
sent to the pump before it has completed the current action. Com-
mands in the buffer must be executed before more commands can
be sent.
Error Types
The pump handles errors differently, depending on the error type. There are four
error types, which are described below.
Immediate Errors
These include "Invalid Command" (error 2), "Invalid Operand" (error 3). After the
command is sent, the answer block immediately returns an error. Once a valid
command is sent, the pump will continue to function normally. Since the [Q]
command is a valid command, the pump will not return an error. In this case, the
[Q] command is not required.
Note: There is no need to reinitialize the pump following this error type.
Initialization Errors
These include "Initialization errors" (error 1) and "Device not Initialized" (error 7). If
the pump fails to initialize or if an Initialization command has not been sent,
subsequent commands will not be executed.
To ensure that the pump initializes successfully, send a [Q] command after the
Initialization command.
If the [Q] command indicates both a successful initialization and that the pump
is ready, subsequent Move commands can be sent.
3 - Software Communication
Error Codes and Pump Status
3 - 49
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