Festo VMPA...-FB-EPL Series, Electronic Manual

Page: 132 / 232

4. Input modules
4−32
Festo P.BE−CPX−EA−EN en 0705f
Module parameters: Reaction after short circuit/overload
Function no. 4828 + m * 64 + 1 m = module number (0 ... 47)
Description Determines after a short circuit in the sensor supply whether the power is to
remain switched off or whether it is to be switched on again automatically.
Bit
0
Reaction after short circuit/overload
Description
Short circuit/overload in sensor supply (SCS) [Behaviour after]
[Behaviour after SCS]
Values 0 = V
SEN
remains switched off
1 = V
SEN
switch on again (presetting)
[Leave switched off ]
[Resume]
Note With the setting V
SEN/OUT
remains switched off," Power off/on is necessary to
restore the power. Check which setting is necessary for reliable operation of your
system.
Also with modules CPX−8DE−D and CPX−16DE−D this parameter applies to the
whole module.
Detailed description under Diagnosis," Tab.4/33.
Tab.4/28: Reaction after short circuit/overload
Module parameters: Input debounce time
Function no. 4828 + m * 64 + 1 m = module number (0 ... 47)
Description Determines when a change of edge of the sensor signal on this module is to be
accepted as a logical input signal.
Bit Bits 4, 5
Values
Bit 5 4
0 0
0 1
1 0
1 1
Input debounce time
Description
0.1 ms
3 ms (presetting)
10 ms
20 ms [Debounce time]
Note Input debounce times are specified in order to eliminate interfering changes of
signal edge during switching procedures (bouncing of the input signal). This
setting applies to all inputs of the module.
Further information on this parameter can be found in the CPX system manual.
Tab.4/29: Input debounce time