Festo Кабели и принадлежности User Manual
Page 153
4. Commissioning
4−9
Festo P.BE−SPC200−EN en 0901d
Please note
When a field bus module is used, all control signals are
controlled via the field bus module.
If the communication to the field bus master is faulty:
Ĉ the field bus module of the SPC200 no longer exchanges
any data,
Ĉ all control signals are set to a 0−signal,
Ĉ all outputs on the SPC200 remain in the last valid state
until they are reset by the SPC200 itself or by Power
off/on.
Ĉ the connected MPYE valves move to their mid−position,
the axes stop without closed−loop control. If the axes are
in a vertical position, they can move downward due to
the leakage in the system.
If a field bus module is not installed:
The control signals are triggered via the first installed I/O
module. The following connection diagram shows the
circuitry which is required in this case.