Rice Lake UMC600IS User Manual

UMC 600IS

Intrinsically Safe Weight Indicator

Installation Manual

58645

Contents

About This Manual................................................................................................................................... 1

1.0 Introduction.................................................................................................................................. 1

1.1 Factory Mutual Approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 System Limitations and Restrictions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.3 Front Panel Keypad and Annunciators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Installation and Wiring................................................................................................................ 4

2.1 Hazardous Area Installation of the UMC 600IS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1.1 Conduit System (Supplied by Customer). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Cable Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 AC Power Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4 Battery Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.1 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4.2 Configuration for Battery Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Instrumentation Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.6 Load Cell Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.7 Serial Port Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8 Troubleshooting and Testing the 600IS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.0 Configuration.............................................................................................................................. 11

3.1 Digital Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.1 Parameter Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.2 Configuration Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.1.3 Digital Configuration Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.2 Serial Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3 Options Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3.1 Option 1 – Expanded Resolution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3.2 Option 2 – Analog Output. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.3.3 Option 3 – Time and Date. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3.4 Option 4 – Auto Shutoff Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.5 Option 6 – Five-Point Linear Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.3.6 Option 7 – Smart Serial I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4 Setting Up Custom Transmits (Smart I/O) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4.1 Enabling Option 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.0 Calibration.................................................................................................................................. 30

4.1 Zero Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.2 Single Slope Span Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3 Five-Point Linear Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.4 Calculations Example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.0 Normal Weighing Mode Operations.......................................................................................... 32

5.1 Display Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.1.1 Display Check. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.1.2 EPROM Verification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.2 LED Annunciators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.3 Function Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.4 Gross/Tare/Net Weighing Operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.1 Display Mode on Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.2 ZERO Key Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Speciﬁcations subject to change without notice.

May 2002

5.4.3 TARE Key Function. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.4 Overload and Underrange Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.4.5 Lb/Kg Conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.5 Fixed Tare Entry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.6 Serial Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.6.1 Serial Data Formats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5.6.2 Demand Mode versus Continuous Data Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

6.0 Appendix.................................................................................................................................... 36

6.1 Error and Status Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.2 Parameter Control Code Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6.3 ASCII Character Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

6.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

UMC 600IS Limited Warranty................................................................................................................. 43

IQ 700IS Installation Manual

About This Manual

The UMC 600IS digital weight indicator represents the latest in state-of-the-art microprocessor technology speciﬁcally applied to the weighing marketplace. This manual provides information on installation, calibration, conﬁguration, and operation of the UMC 600IS.

The installer should be familiar with the National Electrical Code and RP 12.6 ( Recommended Practice ) requirements for installation of equipment in hazardous areas (NEC Article 504, Intrinsically Safe

Systems ) published through the Instrument Society of

America.

Warning

modiﬁcations are made to the installation procedure, the enclosure is opened, or the instrumentation is changed in any way, Factory Mutual approval is void and the customer becomes fully responsible for such modiﬁcations.

This instrument and accompanying equipment must be installed and serviced by an authorized technician in accordance with the instructions provided in this manual. Improper speciﬁcation, installation, or service of this equipment could result in personal injury or property damage.

The UMC 600IS is a Factory Mutual-approved system. This approval is valid only if the installation conforms to the guidelines described in this manual. If

Authorized distributors and their employees can view or download this manual from the Condec distributor site at

www.4condec.com

1.0 Introduction

The UMC 600IS is a single-channel digital weight indicator designed and approved to operate as an intrinsically safe system in a wide variety of scale and weighing applications. The indicator is housed in a NEMA 4X stainless steel sealed case. The standard unit is equipped with a tilt stand base for tabletop or wall mounting applications. The indicator front panel consists of a 21-button keypad, six digit, seven-segment display and 11 LED annunciators (see Figure 1-1 on page 2).

Features of the UMC 600IS include:

• Full front panel digital conﬁguration and calibration

• Zero and span temperature compensation to ensure compliance with NTEP temperature range requirements (–10 to 40°C)

•Nonvolatile memory stores data for calibration, temperature compensation, conﬁguration parameters, auto or ﬁxed tare values, and PAZ and AZM values

•T

en-thousand displayed graduations;

80,000 graduation expansion available

NOTE:

undesirable display instability in some applications.

Use of more than 20,000 graduations may cause

•Analog sensitivity to 0.3

V/grad at 20,000

graduations

•Ten updates per second, with selectable digital averaging and auto averaging; 5 Hz active analog ﬁlter for smooth response

• Excitation for four 350

Ω

load cells at 5 VDC

•Operable from DC power supply or optional battery

•Time and date print selection

1.1 Factory Mutual Approval

The UMC 600IS is Factory Mutual (FM) approved for:

• Classes I, II, and III,

•Divisions 1 and 2, and

•Groups A, B, C, D, E, F and G

The Factory Mutual (FM) approval is a system approval for all devices connected directly to the UMC 600IS digital weight indicator.

Other devices that have FM Entity Approval cannot be used with this system unless speciﬁcally listed in this manual as part of the Condec Factory Mutual systems approval. Failure to comply with this voids the FM approval. The control drawing is the guide to the installation of this system.

Introduction

1.2 System Limitations and Restrictions

The following items represent limitations and restrictions on the use of the UMC 600IS:

•All instrumentation must have identiﬁcation nameplates in compliance with the control drawing.

•All wiring, connections, conduit and grounds must comply with the National Electrical Code.

• The cable type and cable length must comply with the speciﬁcations in the control drawing

•No modiﬁcations can be made in the ﬁeld.

•Factory Mutual Approval required (see Section 1.1 on page 1).

• It is mandatory to return the UMC 600IS to Condec for service.

•Component level repair is not permitted on Factory Mutual Approved equipment.

• Standard unit conﬁguration is without local sense jumpers installed. Therefore, use either six-conductor loadcell cable or externally jump +SEN to +EXC and –SEN to –EXC.

1.3 Front Panel Keypad and Annunciators

Figure 1-1 shows the UMC 600IS front panel. The UMC 600IS display consist of a six digit, seven-segment display. Table 1-1 lists the front panel keys and their functions.

lb kg MOTION

POINT

1 SET

2 SET

ZERO

TARE

RECALL

ZERO

NET

GROSS

CAPACITY

NET

GROSS

600 x 0.1

TARE

162738495

lb/kg

CONV

ENT

Figure 1-1. UMC 600IS Front Panel

Panel Key

ZERO Provides push-button auto zero (PAZ) over ±1.9% or 100% full scale capacity. Operates only in gross

weighing mode. NET/GROSS Switches the unit between gross and net weighing modes. TARE

PRINT Provides a manual print function if unit is wired to serial printer or other data device. lb/kg CONV Switches the displayed weight unit between pounds and kilograms. TARE RECALL Press to recall tare value; LED annunciator ﬂashes when tare value is displayed. ON/OFF Provides power to the indicator. SETPOINT 1 & 2 No function. Setpoints are not supported for this indicator. 0–9, CE, ENT Numeric keyboard for entry of manual tare and calibration data. Includes CE (Clear Entry) and ENT (Enter)

Provides push-button tare entry over 100% of scale capacity. Pressing

and enters tare.

keys.

Function

TARE

key switches to net mode

UMC 600IS Installation Manual

Table 1-1. Front Panel Key Functions

Table 1-2 summarizes the front panel annunciator functions.

Annunciator

LOW BATTERY On when DC input voltage drops below normal operating range. (Located in the display window of

the 600IS).

ZERO On when scale weight is within ±0.25 displayed graduations of zero. Used in gross weighing mode

only. NET On when the indicator is in net weighing mode. GROSS On when the indicator is in gross weighing mode. lb/kg lb or kg LED is lit to show the current displayed weight units. MOTION On when scale is in motion. 1 SETPOINT

2 SETPOINT TARE RECALL Part of the TARE RECALL key, LED ﬂashes when tare value is displayed.

No function.

Function

Table 1-2. Front Panel Annunciators

Introduction

2.0 Installation and Wiring

This section describes the procedures for installing the UMC 600IS indicator, including load cell, digital input, and serial communications cabling.

It is mandatory to return the UMC 600IS to Condec for service. Component level repair is not

Caution

2.1 Hazardous Area Installation of the UMC 600IS

The following information is provided to help the installer use the correct conduit and load cells for installation of the UMC 600IS.

Drawings Required for this Installation

Table 2-1 shows the UMC 600IS control drawing numbers and titles. The UMC 600IS drawings are included in the back of this manual.

permitted on Factory Mutual Approved equipment by other than the manufacturer.

Control Drawing Title

54136, Sheet 1 Installation Drawing I.S. system 54136, Sheet 2 Interconnect Diagram 54136, Sheet 3 Interconnect Diagram, Battery Operated 54136, Sheet 4 Standard Unit Dimensions 54136, Sheet 5 Battery Powered Unit Dimensions 54136, Sheet 6 Unit Mounting Diagram 54136, Sheet 7 Power Supply Mounting Diagram 54136, Sheet 8 Junction Box Diagram 54136, Sheet 9 Junction Box Diagram, Battery Operated

53146, Sheet 10 I/O Interface Mounting Diagram

56804 Summing Box Diagram, 2-4 Load Cells 56810 Summing Box Diagram, 5-8 Load Cells

65476, Sheet 1-5 Approved Load Cell List

Table 2-1.

2.1.1 Conduit System (Supplied by Customer) Power Supply to Indicator

UMC 600IS

Conduit is not required for this installation. However, a separate conduit system is recommended. The type suggested for this application is 3/4 inch rigid steel conduit with pull boxes located at required intervals. The conduit provides additional noise protection for the low level signals, while automatically complying with the requirements for 2 inch separation between intrinsically safe circuits and other electrical cables. Conduit seals are required where a gas tight seal is required between the hazardous area and the safe area.

UMC 600IS Installation Manual

Drawing Number Identiﬁcation

To protect the watertight integrity of the I/O barrier and junction box, the conduit should terminate adjacent to the respective enclosure with a union providing the proper thread to accept a Hubbel or Crouse Hinds cord connector for the cable to exit the conduit. All conduit, ﬁttings, and conduit accessories are provided and installed by the customer.

NOTE:

installation of all conduit seals in compliance with all National Electrical Code regulations.

AC Line Voltage Feed

The customer is responsible for the correct

The installer must comply with Condec installation drawings as well as the National Electrical Code for installation of equipment in hazardous areas (NEC Article 504, Instrinsically Safe Systems ).

2.2 Cable Requirements

Intrinsically safe cables used in the hazardous area are speciﬁed on the Control Drawings 54136, Sheets 2 and 3. Since all cables have internal inductance and capacitance, only the cables listed are safe to use with this

intrinsically safe system. Table 2-2 provides speciﬁcations for maximum cable length based on group classiﬁcation. A list of Factory Mutual approved cables is shown in Table 2-3.

FM-Approved

load cells

(Up to 4)

RECALL

Junction

Box

ZERO

NET

GROSS

ZERO

TARE

CAPACITY

NET

TARE

GROSS

162738495

Cable 3

Load Cell

600 x 0.1

lb kg MOTION

lb/kg

CONV

1 SET POINT

2 SET

ENT

POINT

Cable 2

Power

Cable 1

Divisions I and 2 Class I, Groups A, B, C, D Class II, Groups E, F, G Class III

Serial I/O

Safe AreaHazardous Area

I/O

Isolation

Barrier

Power

Supply

115 VAC

Battery Power

Supply Models

Only

Figure 2-1. Intrinsically Safe System Diagram

Either power supply or battery can be used, but not both simultaneously.

Note:

Maximum Cable Length,

Group Cable 1 Cables 2 & 3

A, B 75' 800'

C 300' D 500'

E, F, G

Table 2-2. Maximum Cable Lengths

Factory Mutual Approved Cable

Cable Type Condec PN Belden P/N

1 Power 2 Serial I/O 3 Load Cell

(

) = feet in increments of 50

45897 ( 45898 ( 45898 (

x x x

Battery

Charger

) ) )

8618 9942 9942

Caution

Table 2-3. FM Approved Cable Lengths

Use only Factory Mutual approved cables.

Installation and Wiring

2.3 AC Power Wiring

Standard units are powered by 115 VAC into Condec DC output power supply (Condec PN 58805).

2.4 Battery Option

The battery operated version of the UMC 600IS is powered by a 6-volt 10-ampere-hour battery that is enclosed in a stainless steel housing. It is mounted below the indicator and is removable for charging in the safe area.

Caution

The battery is approved for use in hazardous environments and provides up to 51 hours of continuous operation in a four by 350 system. Table 2-4 illustrates estimated operating times based on a fully charged battery.

Load Cell Size

Ω

load cell 1 70 hours

350

Ω

load cell 1 74 hours

700

The battery pack is ideal for limited use operations such as bench scales and platform scales. A low battery LED annunciator indicates when the battery needs to be recharged (see Figure 2-2). The recommended initial battery charge time is 10 hours.

Caution should be used when considering a battery powered unit for control applications where a discharged battery would cause serious problems.

Ω

load cell

Quantity of cells Operating Time

2 62 hours 3 56 hours 4 51 hours

2 70 hours 3 66 hours 4 62 hours

Table 2-4. Operating Time

The battery pack is designed for easy removal and can be recharged in a safe area in eight hours or less. The indicator also contains a programmable auto shutoff to power off the indicator when not in use.

Caution

2.4.1 Modes of Operation

All wiring must be done by qualiﬁed personnel and meet all appropriate safety and NEC electrical codes as noted on Condec Control Drawing

33476.

The UMC 600IS battery powered unit has three modes of operation:

• Push on-off (controlled from the front panel on button).

• Push on with auto turn off after selected time (one to nine minutes).

•Auto turn off, same as above with restart of time cycle if motion is detected on the scale (prevents the scale from turning off while in use).

2.4.2 Conﬁguration for Battery Operation

The conﬁguration for battery operation is as follows:

1. The clock function in Option 3 must be enabled and set if Option 4 is to be used (see Section 3.3.3 on page 22).

2. Option 4 must be set as follows (see Section

3.3.4 on page 23 for further details).

A. Option 4 off (unit operates as push on - push off) B. Option 4 on (the turn off timer is enabled) C. Parameter 4.1 selects the turn off time (1 to 9 minutes) D. Parameter 4.2 set to off runs normally/turns off at end of

time cycle. E. Parameter 4.2 set to on will restart timing function when

unit is timing and motion is detected on the scale.

Table 2-5. Conﬁguration of Battery Operation

Low Battery Annunciator

ZERO

NET

GROSS

ZERO

TARE

RECALL

Figure 2-2. Low Battery LED Annunciator

UMC 600IS Installation Manual

CAPACITY

NET

GROSS

600 x 0.1

TARE

162738495

lb/kg

CONV

ENT

lb kg MOTION

1 SET

POINT

2 SET

POINT

2.5 Instrumentation Setup

All indicators are conﬁgured and tested prior to shipment to ensure that they are fully functional. The unit can be turned on immediately after connecting the input power and the load cells.

The UMC 600IS operates with the program KDA—49 programmed onto a 27C512 EPROM. To verify the program installed in the indicator, turn on the indicator and observe the displayed value at the EP prompt (see Figure 2-3). The EP prompt displays the family, set, and version level of the installed EPROM.

Set 49

Where: EP. = EPROM Program

49. = Set 49 within the KDA 1921 family X=The version level of Set 49

Figure 2-3. Example of EPROM Display

Version

Exceeding rated load cell load or

Caution

shorting excitation wires may damage power supply.

NOTES:

•Test weights or a water meter calibration can be used to verify scale performance.

• The tilt stand should be secured with 1/4-20 inch screws. The location should be selected to offer some degree of protection for the indicator and its associated hardware.

•Unprotected cable runs need to be installed in a method to protect the cable from damage.

•All wiring must conform to the National Electrical Code and RP 12.6.

See control drawing 54136, Sheet 2, in the back of this manual for system interconnection details.

NOTE:

with the sleep timer enabled. When connecting the battery pack, press the ON/OFF button in the lower left hand corner of the indicator turning the unit on. At the end of the programmed time the unit automatically turns off. The factory preset power off time delay is conﬁgurable under option 4 and can be lengthened or shortened for the operators speciﬁc application.

Battery operated units are set up in the factory

To ensure that the UMC 600IS is in proper operating condition, the indicator can be tested in a safe area with a load cell simulator. The input signal should be as close as possible to the normal system millivolt value. Figure 2-4 shows the simulator-to-indicator wiring connection in a six-wire conﬁguration. See Section 2.6 on page 8 for more information.

NOTE:

lead be shorted to +EXC and the –SEN lead be shorted to –EXC at the simulator only.

Six-wire conﬁguration requires that the +SEN

LOAD CELL

SIMULATOR

–EXC

+EXC

+SIG

–EXC –SEN

+EXC +SEN

+SIG

TO J1

CONNECTOR

UMC 600IS

–SIG

Figure 2-4. Wiring Connection to Simulator

Installation and Wiring

2.6 Load Cell Wiring

All units are equipped with a six-wire load cell connector. Condec supplies load cell cable in various lengths (see Table 2-3 on page 5). One end of the cable attaches to the indicator; the other end has stripped and tinned wires for connection to a junction box. The UMC 600IS is supplied with a blank six-pin connector that can be attached to existing load cell cables by the installer.

Figure 2-5 shows the load cell output connector and the location of J1 on the back of the indicator. Table 2-6 shows the load cell connector pin assignments.

Function

A +EXCITATION

B –EXCITATION C +SIGNAL D –SIGNAL E +SENSE

F –SENSE

Table 2-6. Load Cell Connector Pin Assignments

For four-wire load cell connections, short the sense lines to the excitation lines as shown in Figure 2-6.

Six-Pin Female

Load Cell Connector

J2 J3

Figure 2-5. J1 Load Cell Connector-facing

Jumper wires

A (+EXC) to E (+SEN) B (–EXC) to F (–SEN)

Connector shell or chassis ground

B C

4-Wire Configuration 6-Wire Configuration

+SEN

+EXC

+SIG

–EXC

–SEN

–SIG

No connection

Figure 2-6. Load Cell Wiring

B C

Check load cell color code for proper wiring

UMC 600IS Installation Manual

2.7 Serial Port Wiring

Serial Port 1 is a bidirectional (full duplex) port supporting active 20 mA current loop communications. Port 1 is optically isolated through the intrinsically safe I/O barrier.

The UMC 600IS serial port can be conﬁgured to communicate directly to a printer, remote display, or other device using 20 mA communications through the I/O interface barrier (see Figure 2-7). Since the I/O barrier is totally passive (not powered), the receiving device must also provide an active 20 mA current loop interface.

ZERO

NET

GROSS

CAPACITY

NET

ZERO

GROSS

TARE

RECALL

162738495

Cable 3

FM-Approved

load cells

(Up to 4)

Junction

Box

Load Cell

Supply Models

Figure 2-7. Intrinsically Safe System using Serial Communications

NOTE: The serial communications capability of the UMC

600IS is dependent on the product speciﬁcations of the receiving device. All serial communications applications should be tested with the I/O barrier in place.

600 x 0.1

lb/kg

TARE

CONV

ENT

Battery Power

Only

Power

Cable 1

lb kg MOTION

1 SET POINT

2 SET POINT

Cable 2

Serial I/O

Divisions I and 2 Class I, Groups A, B, C, D Class II, Groups E, F, G Class III

J3 Pin Function

Safe AreaHazardous Area

I/O

Isolation

Barrier

Power Supply

Battery

Charger

115 VAC

I/O Barrier

TB4 TB5

End Unit

Access to this serial communication port is through the ﬁve-pin female connector (J3) located on the back of the UMC 600IS indicator (see Figure 2-8). See the output connector diagram in Figure 2-8 and Table 2-7 for connector and wire identiﬁcation.

Port 1 (Full Duplex) Serial Communication

Figure 2-8. Serial Port, J3 Connector

J2 J3

D –RCVR

C +RCVR

B –XMTR

A +XMTR

A +XMTR 21 28 RXDCL+ B –XMTR 22 27 RXDCL– C +RCVR 23 26 TXDCL+ D –RCVR 24 25 TXDCL–

E—

— SHIELD

Table 2-7. Serial Port Connector Wiring

Serial Port conﬁguration is explained in greater detail in Section 3.2 on page 16 of this manual.

Installation and Wiring 9

2.8 Troubleshooting and Testing the 600IS

Troubleshooting the system components in a safe area can be done in the normal manner utilizing any test equipment that is necessary . However, prior to any test or measurement that is done in a hazardous area, the plant manager or safety ofﬁcial must be notiﬁed to obtain permission or speciﬁc instructions.

The following basic procedures should be observed to provide a safe installation.

•Follow all plant safety procedures.

•Verify what type test equipment is allowed in the hazardous area.

•Do not bring into the hazardous area any inductive continuity testers.

•Do not bring any capacative discharge type devices into the hazardous area.

•Ask the plant authority if the use of non-sparking tools are required.

2.8.1 Troubleshooting

The following should be a guide during the installation of the weighing system in a hazardous location.

•Troubleshooting should only be done by qualiﬁed ﬁeld service scale installation personnel.

•Component level repair is not permitted on Factory Mutual approved equipment.

•A factory trained technician can replace plug-in IS barrier equipment in the safe area.

• It is manditory to return the UMC 600IS to the factory for repair and full testing.

•Tampering with the intrinsically safe equipment voids the Factory Mutual approval.

• Safe area voltage measurements are as follows: Field replaceable parts are listed below for the UMC

Power Supply Output Voltage

No load 8.0 +/- 0.2 VDC One load cell 7.6+/- 0.2 VDC Four load cells 6.5 +/- 0.2 VDC

Table 2-8. Output Voltage

The power supply output voltage can be measured at the following terminals:

•TB2-4 +VDC (positive lead)

•TB2-5 DC Com (negative lead)

Shorting these terminals will blow the fuse in the intrinsically safe barrier module 59267.

Caution

600IS digital weight indicator.

Condec Part

Number

58805 Power supply 65004 Power supply board assembly 59267 Plug-in barrier 59942 Fuse, 0.25A 55683 I/O barrier 57415 I/O barrier board assembly 54966 Plug-in I/O barrier 56214 Battery pack module 54087 Battery charger 52216 Tilt stand (battery unit) 54074 Load cell connector (6 pin) 54080 Power connector (3 pin) 54084 I/O connector (5 pin)

Description

10 UMC 600IS Installation Manual

Table 2-9. Field Replaceable Parts

3.0 Conﬁguration

162738495

ENT

TARE

RECALL

ZERO

NET

GROSS

TARE

lb/kg

CONV

1 SET POINT

2 SET POINT

CAPACITY

600 x 0.1

ZERO

NET

GROSS

lb kg MOTION

DEAD LOAD (3)

CONF (2)

CAL (1)

342

1 OPEN

NORM

Parameter Identifier

Selected Data

ZERO

NET

GROSS

TARE

lb/kg

CONV

Prior to calibration, the UMC 600IS must be digitally conﬁgured, or assigned a set of operating parameters. The ﬁrst three parameters are directly related to calibration and must be set before proceeding to calibration mode.

3.1 Digital Conﬁguration

3.1.1 Parameter Overview

Table 3-1 on page 12 lists conﬁguration parameters and describes their values. The following paragraphs give the procedure for conﬁguring the UMC 600IS.

3.1.2 Conﬁguration Procedure

1. Unscrew the two screws on the face plate bracket (See Figure 3-1). The bracket drops down, exposing four program switches on the left.

ZERO

NET

GROSS

342

OPEN

ZERO

TARE

RECALL

CAPACITY

NET

GROSS

162738495

TARE

600 x 0.1

lb/kg

CONV

Figure 3-1. Accessing the Program Switches

2. Temporarily remove the unit’s ﬂexible black display panel by gently pushing down and lifting the panel up and out at its center to expose the conﬁguration and calibration instructions printed on the surface below. The switch function table deﬁnes the appropriate front panel switch settings for the CONF and CAL modes.

3. Close switch SW1-2, marked CONF (2), by moving to the up position (see Figure 3-2). A prompt appears with a parameter number and data value.

The parameter identiﬁer is a number, 1–14, that correlates to the CONFIG chart on the upper left of the switch map panel. Selected data represents the value being entered into the unit conﬁguration data. For example, 1 100 sets the indicator to 10,000 graduations (see Table 3-2 on page 13).

lb kg MOTION

ENT

1 SET

POINT

2 SET

POINT

When conﬁguration is complete, set SW1-2 open (down) to return the unit to normal operating mode.

Figure 3-2. Closing Switch 2

The function keys shown in the table in Figure 3-3 have alternate functions during digital conﬁguration.

Zero Net/Gross Tare lb/kg Conv

Parameter Select Parameter Data

Select

Subparameter

Select

Subparameter

Data Select

Figure 3-3. Front Panel Key Functions

NOTE: The TARE RECALL key functions as a previous

screen key in CONFIG mode.

3.1.3 Digital Conﬁguration Parameters

Table 3-2 on page 13 lists the conﬁguration display prompts (Prompt 1) and their value selections for displayed graduations. Prior to calibration, the UMC 600IS must be digitally conﬁgured, or given its set of operating parameters. The ﬁrst three parameter selections are directly related to calibration and must be set up before proceeding to the calibration mode. These parameters include the number of graduations, the resolution, and the decimal point location in the weight data, all of which deﬁne the scale capacity.

Table 3-3 lists Prompts 2 and 3 and Table 3-4 has Prompts 5, 6, and 7. Prompts 8, 9, and 10 are shown in Table 3-5 and Prompts 11 through 14 are listed in Table 3-6 both on page 15.

Configuration 11

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