SSI America 7SL instruction manual Wiring Guidelines, Terminal Layout, Measuring Inputs TC Input

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WIRING GUIDELINES

Terminal Layout

6	+	11	A/A'		1
	C		A/A'	NO

	OUT 2			OUT 1

A) Measuring Inputs

NOTE: Any external components (like Zener diodes, etc.) connected between sensor and input terminals may cause errors in measurement due to excessive and/or not balanced line resistance or possible leakage cur- rents.

TC Input

7	NO	12 B/B'		C	2
7	NO	12 B/B'			2
		_	RS485
			RS485
8		13	C	NC	3
		RTD			4
9		14			4

10

9

+

_

Shield

_	LINEAR		LINEPWR 100/240Vac Vac/dc24
TC		DIG 1
10		15		5

+

10

9

+

_

Shield

NOTE: When a relay output is used to drive an inductive load, connect an external snubber network (RC) across the terminals:

		R		C
in accordance with the following table:

Load	C		R	P	Resistor and
Current	(∝F)		(Ω )	(W)	Capacitor Voltage

< 40 mA	0.047		100	1/2	260 Vac

< 150 mA	0.1		22	2	260 Vac

< 0.5 Amp	0.33		47	2	260 Vac

7

NOTE:

1)Do not run input wires with power cables.

2)For TC wiring use proper compensating cable, preferably shielded (see Thermocouple Compen- sating Cable Color Codes).

3)Shielded cable should be grounded at one end only.

7sl-1-00.p65

7

9/17/02, 2:39 PM

Image 7

Contents Model 7SL HIGH/LOW Limitrol 16 DIN, Four Digit HIGH/LOW Limitrol Guide to simple set-up CongratulationsUSE Wire Suitable For 75C Minimum Table of ContentsMounting Requirements Dimensions and Panel Cutout Terminal Layout Wiring GuidelinesMeasuring Inputs TC Input Logic Input Linear InputRTD Input RTD7sl-1-00.p65 17/02, 239 PM OUT Relay OutputsCommon Serial InterfacePower Supply Power Line and groundingPreliminary Hardware Settings Limitrol without RS-485 Limitrol with RS-485Configuration Procedure Configuration KEY FunctionsR1 = Input Type and Range Value R2 = Decimal Point Position R5 = Offset AdjustmentR7 = Alarm Action on Fault C2 = Acknowledgment ModeControl Output Function C4 = Reset Memory C3 = Reset at Power-upP2 = Alarm configuration OFF = P3 = Alarm ActionAlarm Standby Function = Safety LockT1 = Timeout Selection tn10 = 10 second timeout Reset Operating ModeNormal Display Mode IndicatorsParameter Display Mode Key Functions in Normal Display ModeKey Functions in Parameter Display Mode Operating Parameters Dealing with Error Messages Error MessagesError Messages Error ListLoading Default Configuration Parameters Default ParametersLoading Default Operating Parameters Default Operating Parameters ListPara Default Configuration Parameter ListSpecifications Normal Mode Rejection Ratio Display Update Time RangeTemperature Drift Common Mode Rejection RatioType of Alarm Acknowledgment ModePower-Up Mode Alarm FunctionENV50140 ReferencesCEI 70-1 IEC NemaGeneral Guidelines Calibration ProcedureCalibration Parameters Entering Calibration Values ProcedureTH TC Input Final Scale Value TC Input CheckPL RTD Input Initial Scale Value PH RTD Input Final Scale ValueRTD Check RJ. Cold Junction Compensation CheckVolt Input Check AH Current Input Final Scale ValueCurrent Input Check NH 5 Volt Input Final Scale ValueUH 10 Volt Input Final Scale Value UL 10 Volt Input Initial Scale ValueMaintenance Manual Part No 7SL