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Drawing No. LP0673  

Revised 08 2021

4

3.2  INPUT WIRING

USER INPUT WIRING

CAUTION:

 Analog common is NOT isolated from user input 

common. In order to preserve the safety of the meter 

application, the DC common must be suitably isolated 

from hazardous live earth referenced voltage; or input 

common must be at protective earth ground potential. If 

not, hazardous voltage may be present at the User Input 

and Input Common terminals. Appropriate considerations 

must then be given to the potential of the input common 

with respect to earth ground. Always connect the analog 

signal common to terminal 2.

The User Input is located: LD2 - left side, 

LD4 - right side

Terminal 5: User Input

Terminal 6: User Comm

3.3  SETPOINT (OUTPUT) WIRING

The setpoint relays use a six position terminal block (TBB) located 

inside the (right side). 

Terminal 1: NC 1

Terminal 2: NO 2

Terminal 3: Relay 1 Common

Terminal 4: NC 1

Terminal 5: NO 2

Terminal 6: Relay 2 Common

USER

5

USER COMM

6

TBC

USER

USER COMM

6

5

TBC

+

-

1 N.C. 1

COMM 1

3

2 N.O. 1

TBB

4

5

6

N.C. 2

N.O. 2

COMM 2

Sinking Logic

Sourcing Logic

USER COMM

6

5

CURREN

T

+EXC

4

3

2

1

TBC

VO
LT

ANALOG COMM

USE

R

RANGE SELECT JUMPERS

2 mA

20 V/200 

V

10 
V

200 mV/2 

V

200 mA

20 mA

200µA

Current Signal  

(self powered) 

Terminal 3: +ADC

Terminal 2: -ADC

Voltage Signal 

(self powered)

Terminal 1: +VDC

Terminal 2: -VDC

Current Signal (2 wire 

requiring excitation) 

Terminal 4: +EXC

Terminal 3: +ADC

1

2

+

-

200 VDC MAX.

VO

LT

ANALOG COMM

INPUT SIGNAL WIRING

Current Signal (3 wire 

requiring excitation) 

Terminal 3: +ADC (signal)

Terminal 2: -ADC (common)

Terminal 4: +EXC

Voltage Signal (3 wire 

requiring excitation) 

Terminal 1: +VDC (signal)

Terminal 2: -VDC (common)

Terminal 4: +EXC

Load

200 MA DC MAX.

ANALOG COMM

CURRENT

2

+

-

3

3 WIRE TRANSMITTER

VO

LT

1

+ EXC

ANALOG COMM

I

out

V

out

2

COMM

3

4

CURRENT

TRANSMITTER

-

+

+ EXC

CURRENT

3

2 WIRE

4

Before connecting signal wires, 

verify the Input Range Jumper is in 

the proper position.

The power wiring is made via the 3 position terminal block (TBA) located inside 

the unit (right side). The DC out power is located: LD2 - left side, LD4 - right side

3.1  POWER WIRING

USER COMM

+ EXC

6

4

TBC

DC Out Power

Terminal 4: + 24 VDC OUT

Terminal 6: User Common

Power

Terminal 1: VAC/DC +

Terminal 2: VAC/DC -

Terminal 3: Protective 

Conductor Terminal

1

2

L(+)

N(-)

3

TBA

+

-

Содержание LD Plug

Страница 1: ... VDC 100 mA if input voltage is greater than 50 VAC VDC 24 VDC 50 mA if input voltage is less than 50 VDC Isolation 3000 Vrms for 1 min to all inputs and outputs 3 INPUT RANGES Jumper Selectable D C Voltages 200 mV 2 V 20 V 200 V 10 V INPUT RANGE ACCURACY 23 C LESS THAN 85 RH INPUT IMPEDANCE MAX INPUT SIGNAL RESOLUTION TEMP COEFFICIENT 200 mV 0 1 of span 1 033 MΩ 75 VDC 10 µV 70 ppm C 2 V 0 1 of s...

Страница 2: ...stallation Category II Pollution Degree 2 11 CERTIFICATIONS AND COMPLIANCES CE Approved EN 61326 1 Immunity to Industrial Locations Emission CISPR 11 Class B Safety requirements for electrical equipment for measurement control and laboratory use EN 61010 1 General Requirements EN 61010 2 030 Particular Requirements for Testing and Measuring Circuits RoHS Compliant UL Listed File E137808 E179259 Ty...

Страница 3: ...istor when the load is switched One of the most effective ways is to place a diode across the inductive load Most RLC products with solid state outputs have internal zener diode protection However external diode protection at the load is always a good design practice to limit EMI Although the use of a snubber or varistor could be used RLC part numbers Snubber SNUB0000 Varistor ILS11500 or ILS23000...

Страница 4: ...N O 2 COMM 2 Sinking Logic Sourcing Logic USER COMM 6 5 CURRENT EXC 4 3 2 1 TBC VOLT ANALOG COMM USER RANGE SELECT JUMPERS 2 mA 20 V 200 V 10 V 200 mV 2 V 200 mA 20 mA 200µA Current Signal self powered Terminal 3 ADC Terminal 2 ADC Voltage Signal self powered Terminal 1 VDC Terminal 2 VDC Current Signal 2 wire requiring excitation Terminal 4 EXC Terminal 3 ADC 1 2 200 VDC MAX VOLT ANALOG COMM INPU...

Страница 5: ... high as 10M baud the LDA is limited to 38 4k baud The same pair of wires is used to both transmit and receive data RS485 is therefore always half duplex that is data cannot be received and transmitted simultaneously 3 4 SERIAL WIRING TBD A COMM RXD TXD 4 2 3 1 B 5 232 485 5 LD METER RECEIVING DEVICE 5V 4 47K 47K 3 B A COMM Transmit Enable OPTIONAL Terminal Block Connection Figure 1 1 TXD RXD COMM...

Страница 6: ...d proceed through each module in sequence When programming is complete it is recommended to record the parameter programming and lock out parameter programming with the user input or programming security code FACTORY SETTINGS Factory Settings may be completely restored in Module 2 This is useful when encountering programming problems ALTERNATING SELECTION DISPLAY In the explanation of the modules ...

Страница 7: ... the decimal location for the Input Value For Apply APLY style the meter shows the previously stored Input Value To retain this value press the SEL button to advance to the next parameter To change the Input Value press the RST button and apply the input signal to the meter Adjust the signal source externally until the desired Input Value appears Press the SEL button to enter the value being displ...

Страница 8: ...ut 8 seconds 6 When the display reads the selected range connect the positive lead of the DC current source to the current input and apply full scale input signal for the range Note For 200 mA range apply 100 mA as indicated on the display Press PAR Display reads CALC for about 8 seconds 7 Repeat steps 3 through 6 for each input range to be calibrated When display reads CAL NO press the PAR button...

Страница 9: ...gramming parameters This code can be used along with the Program Mode Lock out P Loc in the User Input Function parameter Module 1 Two programming modes are available Full Programming mode allows all parameters to be viewed and modified Quick Programming mode permits only the Setpoint values to be modified but allows direct access to these values without having to enter Full Programming mode Progr...

Страница 10: ...en the setpoint is a control output usually balanced hysteresis is used For alarm applications usually unbalanced hysteresis is used For unbalanced hysteresis modes the hysteresis functions on the low side for high acting setpoints and functions on the high side for low acting setpoints Note Hysteresis eliminates output chatter at the switch point while time delay can be used to prevent false trig...

Страница 11: ...igger point per the Setpoint Action shown in Setpoint Output Figures Latch means that the output can only be turned off by the front panel RST button or user input manual reset serial reset command or meter power cycle When the user input or RST button is activated momentary action the corresponding on output is reset immediately and remains off until the trigger point is crossed again Previously ...

Страница 12: ...BREVIATED PRINTING This parameter determines the formatting of data transmitted from the meter in response to a Transmit Value command or a Block Print Request Select NO for a full print transmission consisting of the meter address mnemonics and parameter data Select YES for abbreviated print transmissions consisting of the parameter data only This setting is applied to all the parameters selected...

Страница 13: ...minator Received First Character of Reply Reply Transmission NO REPLY FROM METER RESPONSE FROM METER Time Timing Diagram Figure Receiving Data From The Meter Data is transmitted from the meter in response to either a transmit command T a block print request command P or a User Input print request The response from the meter is either a full field transmission or an abbreviated transmission dependi...

Страница 14: ...rity bit is sent The transmitter sets the parity bit to a zero or a one so that the total number of ones contained in the transmission including the parity bit is either even or odd This bit is used by the receiver to detect errors that may occur to an odd number of bits in the transmission However a single parity bit cannot detect errors that may occur to an even number of bits Given this limitat...

Страница 15: ...1 d d S S P P 1 1 I I N N P P 2 2 U U A A S S N N User Input Assignment L L O O E E n n Min Display Enable Max Capture Delay Time Max Display Enable H H I I E E n n H H I I t t 2 2 S S E E C C Min Capture Delay TIme L L O O t t Factory Service Operations F F C C S S Access Code For Service Operations C C o o d d E E P P A A r r Parity Bit Baud Rate b b A A U U d d Data Bit d d A A t t A A 5 5 S S ...

Страница 16: ...W COURSE OF DEALING COURSE OF PERFORMANCE USAGE OFTRADE OR OTHERWISE Customer shall be responsible for determining that a Product is suitable for Customer s use and that such use complies with any applicable local state or federal law b The Company shall not be liable for a breach of the warranty set forth in paragraph a if i the defect is a result of Customer s failure to store install commission...

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