Honeywell VRX180 Standard Splitter Output STD Splitter, Standard Splitter Prompts, Feedback #2

Programming Function Blocks and Features

Standard Splitter Output (STD SPLITTER)

This function can be used for heat/cool applications. It is a deadband-based splitter that divides a Split loop’s output (-100% to +100%) into two outputs CVn A1 and CVn A2, both of which are zero when the loop output is zero (Figure 4-14). A deadband provides a range of loop output within which both split outputs remain at zero. For overlapped outputs, use Advanced Splitter. Note: A third output CVnA3 is displayed Online and should be ignored.

100		100
	Deadband
CV A2		CV A1
0		0
-100	0	+100

PID Output %

Figure 4-14 Standard Split Output Function

Table 4-42 describes the Standard Splitter prompts. See Table 4-2 for additional prompts.

Table 4-42 Standard Splitter Prompts

Prompt	Range/Selections	Definition
RANGE LOW	OFF or number	Enter the output’s display limits. Output is not clamped or
		flashed when it exceeds these limits.
RANGE HIGH
INPUT	OFF, analog parameter,	Input source. Typically, this is the output value (OV) of a
	number	Split Output type of loop.
FEEDBACK #1	AOn BC, LPn BC, CVn BC	Enter an AO, LP or CV for the back calculation value (BC)
		of the analog output assigned to the A1 output.
FEEDBACK #2	AOn BC, LPn BC, CVn BC	Enter an AO, LP or CV for the back calculation value (BC)
		of the analog output assigned to the A2 output.
OUTPUT	OFF or number	Deadband up to 10% of the input span. In this range, both
DEADBAND		split outputs will remain at zero.

Video Recorder – User Manual 135