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Very high load on the positioner
►
Stop the reference move immediately.
►
Switch servo mode off.
►
Enter suitable values for setting the
►
Restart the reference move.
►
If the positioner continues to oscillate, repeat
the specified steps until the reference move has
completed successfully without oscillation.
Communication between the E-871.1A1N and the PC not functioning
Wrong communication cable used
►
Use a straight-through cable for TCP/IP connec-
tions to a network.
►
Use a crossover network cable for TCP/IP con-
nections direct to the PC.
►
Use a null-modem cable for RS-232 connections.
►
Use a standard-compliant USB cable (type A to
type B or type A to type Mini-B) for USB connec-
tions
Communication cable defective
►
Replace the communication cable.
RS-232 interface not configured correctly
►
Check the port settings, the baud rate and the
handshake setting of the PC.
TCP/IP interface not configured correctly
►
Connect the controller to the network before
you switch it on. Restart the E-871.1A1N if nec-
essary.
►
Check the network settings.
►
Make sure that the network is not blocked for
unknown devices.
►
Make sure that you have selected the correct
E-871.1A1N when establishing communication.
►
If you cannot solve the problems, consult your
network administrator if necessary.
Another program is accessing the interface
►
Close the other program.
The start procedure of the E-871.1A1N's firm-
ware has not finished yet
►
Wait until the
STA
LED lights up continuously af-
ter switching on or rebooting the E-871.1A1N.
►
Try to establish communication.
Problems with special software
►
Check whether the system works with other soft‐
ware, e.g., a terminal program, or a development
environment; for this purpose, enter the
*IDN?
or
HLP?
command using that software. Make
sure that you end commands with an LF (line
feed); a command is only executed when an LF is
received.
E-871.1A1N does not send an error code in the case of incorrect system behavior
The error code was already queried by a dif-
ferent instance
In the case of simultaneous access to the
E-871.1A1N by several instances, the error
code is only returned to the first instance
that sent the
ERR?
command. The error code
is reset to 0 during the query.
►
If possible, access the E-871.1A1N with one in-
stance only.
►
Check whether the error code is queried regular-
ly in the background by a macro or script or PC
software (e.g., PIMikroMove).
LEDs do not light up even though the E-871.1A1N is switched on
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