Honeywell DR4300 manual Limit Control Configuration, Special configuration for control and alarms

DR4300 Circular Chart Recorder

4.3.22 Limit Control Configuration

Special configuration for control and alarms

The DR4300 is available as a limit controller. Most set up groups described in Subsections 4.3.7 through

4.3.20apply to limit control, and are configured for the limit controller the same way they are for other recorders.

The exceptions are:

•Control set up group contains special parameters for limit control in place of those described in Subsection 4.3.11. The limit control set up parameters that replace those in Subsection 4.3.11 are listed in Table 4-19.

•Alarm 1 is not available.

Table 4-19 Limit Control Parameter Definitions

Lower Display		Upper Display	Parameter
Prompt	Range of Setting		Definition
		or Selection
LIMIT			TYPE OF LIMIT CONTROL
	HI	[factory setting]	HI — Limit action occurs when PV exceeds SP.
	LO		LO — Limit action occurs when PV is less than SP.
POWRUP			POWER UP STATE
	NORM		NORM — Normal limit control on power up.
	RST	[factory setting]	RST — Powers up in limit state. Recorder will not begin
			normal limit control until RESET key is pressed.*
SP HI	–999 to 9999		SETPOINT HIGH RANGE LIMIT —This parameter
	[factory setting = 100]		prevents the local setpoint from going above the value
			specified here. The setting must be equal to or less than
			the upper range of the input.
SP LO	–999 to 9999		SETPOINT LOW RANGE LIMIT—This parameter
	[factory setting = 0]		prevents the local setpoint from going below the value
			specified here. The setting must be equal to or greater
			than the lower range of the input.
XRSET			EXTERNAL RESET—Use this parameter to enable or
			disable resetting the limit controller (taking it out of the
			limit state) using Remote Switch 1 (digital
			input 1).
	DIS [factory setting]		DIS — When external reset is disabled, the limit controller
			can be reset only by pressing the MAN/AUTO/RESET
			key on the recorder.
	ENAB		ENAB — When external reset is enabled, the limit
			controller can be reset two ways: by pressing the
			MAN/AUTO/RESET key on the recorder, or by turning on
			digital input 1 (contact closed).

118 DR4300 Circular Chart Recorder Product Manual 12/03