Siemens SIMOTION D4x5-2 DP/PN Operating Instructions Manual page 391

E77 Impermissible change to mode_comm
Changing the value of mode_comm while control bit "move" or "move_SkA" is set, sets the error
and the output velocity of the cylinders and the skew axis suddenly become 0. The error is reset
as soon as "move" and "move_SkA" are zero.
Error bit:
Error type: Error
Remedy:
E78 Storage of the zero position not possible
The actual positions of the cylinders are too far from the mid-positions, so that storage of the
zero positions is not possible (see Chapter Parameterization of the central positions of the
cylinders (Page 354)).
Error bit:
Error type: Error
Remedy:
E79 Following error cylinders
The error occurs if move=1 and for at least one cylinder the difference between s_out_* and
s_act_* is larger than P278.
The internally calculated output position s_out_* is obtained from v_out_* and initialized to
s_act_* in response to a positive edge of "move."
Error bit:
Error type: Error
Remedy:
E80 Additional mode selected in addition to cylinder jogging
In the TLS mode "Cylinder jogging" (mode_comm = 1), another TLS mode was selected. That
is not possible and is signaled with this error.
Error bit:
Error type: Error
Remedy:
SC integrated STS, GSU
Operating Instructions, 07/2019, A5E48271265B AA
Error word 2, bit 7
Correct error in control in the PLC
Error word 2, bit 8
Move the cylinders nearer the mid-positions
Error word 2, bit 9
Check cylinders
Error word 2, bit 10
Correct control in the PLC
Alarm, error, and system messages
10.5 Error messages
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