Festo VMPA-FB-PS Series, Руководство пользователя

Страница: 55 / 96

2. MPA pressure sensor
2−7
Festo P.BE−MPA−ELECTRONIC−EN en 0804NH
Module parameter: Delay for pressure diagnosis Handheld
Function no. 4828 + m * 64 + 6 m = module number of the MPA pressure sensor (1 ... 47)
Description Defines the time delay before a message is generated when a limit value is ex
ceeded or not reached. This avoids faulty diagnostic messages because the limit
must be exceeded or not reached for somewhat longer before a diagnostic mess
age is generated.
The delay only affects the start of the diagnosis! When the pressure returns to
the limit range then this is always signaled immediately.
Bit Bits 4, 3 [Diagnostic delay]
Values Bit 4 3 2 1 0 Setting:
0 0 x x x no delay (default setting)
0 1 x x x 40 ms
1 0 x x x 160 ms
1 1 x x x 640 ms
Note This parameter is especially useful when monitoring exhaust channels 3 and 5.
Tab.2/5: Setting the delay for pressure diagnosis
Module parameter: Activate limit value monitoring Handheld
Function no. 4828 + m * 64 +
7
m = module number of the MPA pressure sensor (1 ... 47)
Description Defines which limit values are to be monitored.
Bit Bits 1, 0 [Monitor lower limit]
[Monitor upper limit]
Values Bit 1 0 Setting:
0 0 No limit value monitoring (default setting)
0 1 Monitoring of lower limit value
1 0 Monitoring of upper limit value
1 1 Monitoring of upper and lower limit values
Note With the setting No limit value monitoring" the green 0 LED is always lit.
Tab.2/6: Activate and set limit value monitoring