Santerno Sinus Penta - Page 234

SINUS PENTA
PROGRAMMING GUIDE
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P377
MPL4: Digital output mode
DOUBLE FULL
P378
MPL4: Selecting variable A
D51: MPL3
P379
MPL4: Selecting variable B
A86: PID Feedback
P380
MPL4: Testing variable A
P381
MPL4: Testing variable B
≥
P382
MPL4: Comparing value for Test A
P383
MPL4: Comparing value for Test B
Min. FBK value [*]
P384
MPL4: Function applied to the result of the 2 tests
(A) Set (B) Reset
P384a
MPL4: Selecting variable C
D0: Disabled
P384b
MPL4: Function applied to the result of f(A,B) C
P385
MPL4: Output logic level
See steps 1. and 2. below
Virtual digital output MPL4 locks the system operation in two modes:
1. Virtually connecting the output to an external alarm input (P385=FALSE; C164=12: MPL4)
2. Disabling the PID (P385=TRUE; C171=12: MPL4)
On the other hand, when the malfunctioning signal is sent to the PLC supervisor, the same parameterization in MPL4
shall be entered in the digital output concerned.
NOTE
[*]
Min. Operating PWR = Min. power required for the pump delivery.
Min. FBK value = the min. feedback value shall be ≥ P237 (minimum PID).
NOTE
When the Sleep Mode (see PID PARAMETERS MENU) and the Dry Run Detection mode are
activated simultaneously, the delay time for the Dry Run Detection mode shall be shorter than
the Sleep Mode time.