Detailed Description
2.1 Various interface signals and functions (A2)
NC/PLC Interface Signals (Z1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
2-55
DB31, ...
DBX94.1
Heatsink temperature pre-warning
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The drive module sends the warning "heatsink temperature pre-warning" to the PLC.
This triggers the following:
• Terminal 5 on the infeed/regenerative feedback module is simultaneously activated.
• The drive module is switched off after 20 seconds. The drives are stopped when the impulse
enable is removed. Then alarm 300515 is triggered.
Signal state 0 or
edge change
1 → 0
The drive module heatsink temperature pre-warning has not responded.
Application
example(s)
As soon as "heatsink temperature warning" has been signaled, the PLC can, for example, initiate
controlled shutdown of the drives.
Additional references /DA/ Diagnostics Guide
DB31, ...
DBX94.2
Ramp-up completed
Edge evaluation: no Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The PLC is signaled, that after a new speed setpoint has entered, the speed actual value has
reached the speed tolerance bandwidth:
MD1426 $MD_SPEED_DES_EQ_ACT_TOL (tolerance bandwidth for n
set
= n
act
- signal)
and has remained within this tolerance bandwidth for at least the time defined using machine data:
MD1427 $MD_SPEED_DES_EQ_ACT_DELAY (delay time n
set
= n
act
- signal)
refer to the diagram).
Even if the speed actual value leaves the tolerance band (because of speed fluctuations resulting
from changes in load) the "ramp-up completed" signal remains (1 signal).
Signal state 0 or
edge change
1 → 0
The conditions described above have not yet been fulfilled. The ramp-up has therefore not yet been
completed.
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