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12 Functional Descriptions 11.92
12.11.1 SIPOS absolute encoder up to SW 4
12.11.1.7 SIPOS absolute encoder errors
With SIPOS, errors can occur in the encoder as well as in the absolute submodule located on
the HMS measuring circuit module.
Please note that a faulty connection between the encoder and the absolute submodule can
trigger nearly all the error messages because it is along this connection that communication
takes place. This transmission line should therefore always be checked first when an error
occurs.
The following is a list of all possible error numbers together with the possible cause of error
provided that the connection between the encoder and the absolute submodule is not faulty:
Error No.:
1-50, 93-195, 240-253
Meaning:
Remedy:
Absolute encoder and/or absolute submodule faulty.
– Check whether absolute encoder and absolute submodule are
damaged.
– Check that connectors are firmly in position.
Error No.:
51-70
Meaning:
Remedy:
Absolute submodule and/or connection between absolute submodule and
measuring circuit faulty
– Check whether absolute submodule is damaged.
– Check that connector between measuring circuit and absolute
submodule is firmly in position.
Error No.:
71-80, 200-230
Meaning:
Remedy:
Absolute submodule faulty/discharge battery (after 10 min. "battery
alarm" appears)
– Check whether absolute submodule is damaged
– Check that encoder connector is firmly in position.
Error No.:
81-86
Meaning:
Remedy:
Connection between absolute submodule and measuring circuit faulty
– Check whether absolute submodule is damaged.
– Check that connector between measuring circuit and absolute
submodule is firmly in position.
Note:
When sending in faulty components for repair, always state the error number.
12–80
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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