Rice Lake Digital Diagnostic User Manual

Digital Diagnostic Junction Box
Version 1.4
Installation Manual
77224
Contents
About This Manual ................................................................................................................................... 1
1.0 Introduction.................................................................................................................................. 1
1.1 System Configurations and Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Installation ................................................................................................................................... 3
2.1 Unpacking and Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Mounting the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Cable Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.4 Load Cells . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.5 Serial Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.6 Primary/Secondary Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.7 Digital I/O. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.8 Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9 Core Module DIP Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10 Core Module Reset Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.11 iQUBE Communications Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11.1 Copper-Wire Connection to the 920i. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11.2 Fiber-Optic and Ethernet Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11.3 Remote Fiber-Optic Module (PN 77789) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.11.4 Analog Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.12 Installing Tap and Run Connectors for 920i Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.13 Installing the Optional Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14 Installing Option Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14.1 Digital-to-Analog (DAC) Conversion Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14.2 iQUBE Internal Fiber-Optic Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14.3 iQUBE Internal Ethernet Option. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.14.4 920i Internal Fiber-Optic Option . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.15 Fuse Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.16 Parts Kit Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.17 Replacement Parts and Assembly Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.0 920i Indicator Configuration...................................................................................................... 20
3.1 Configuration Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2 920i–iQUBE Menu Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3 Configuration and Calibration Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.4 iQUBE-Specific Menu Structures and Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.1 SERIAL Menu, iQUBE Submenu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.4.2 iQUBE Submenu, IQDIAG Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.4.3 PFORMT Menu. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.0 PC Configuration ........................................................................................................................ 29
4.1 Using Revolution III . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.1 Revolution III Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1.2 Downloading to the iQUBE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.2 Using iRev . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.rlws.com or obtained
by calling 715-234-9171 and asking for the training department
© 2006 Rice Lake Weighing Systems. All rights reserved. Printed in the United States of America.
March 2006
5.0 Calibration ................................................................................................................................. 31
5.1 920i Front Panel Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1.1 Theoretical Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1.2 Cal-Match Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.1.3 Manual Trim Factor Adjustment (Tweaking). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.1.4 Final Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5.2 Revolution III Calibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
6.0 Diagnostics ................................................................................................................................ 34
6.1 iQUBE Diagnostic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.2 Cell Mate Relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.3 Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6.4 Diagnostic Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.1 Configuring the 920i Diagnostics Softkey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.4.2 920i Diagnostic Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.5 Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
7.0 Alerts.......................................................................................................................................... 38
7.1 Network Alert Notification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
7.2 Alert Format. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
7.3 FEATURE Menu, CONTACT Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
7.4 PFORMT Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
8.0 920i Serial Commands .............................................................................................................. 42
9.0 Appendix .................................................................................................................................... 45
9.1 Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.1.1 General Steps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.1.2 Technical Assistance Guide and Questionnaire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9.2 Printed Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.3 Flash Update Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
9.4 Software Version Updates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9.5 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
iQUBE Limited Warranty......................................................................................................................... 51
ii iQUBE Installation Manual

About This Manual

This manual is intended for use by service technicians
920i
responsible for installing and servicing
digital diagnostic junction boxes. This manual applies to Version 2145 or later of the Version 2.05 or later of the
Configuration and calibration of the accomplished using the
iQUBE software and
920i indicator software.
iQUBE can be
Revolution III configuration
utility. For installations using the
can be configured using the
920i indicator, the indicator
Revolution III or iRev
configuration utilities, serial commands, or the 920i indicator front panel keys.

1.0 Introduction

The iQUBE is a digital programmable junction box used to connect up to 16 full bridge analog load cells.
iQUBE outputs a serial stream that can be directly
The input to the Ethernet cabling. Alternatively, the configured to provide an analog output signal for input to standard digital weight indicators.
The
iQUBE is available in three models:
Four-channel
Eight-channel
Eight-channel with eight digital I/O channels
The basic
•The connector board provides the physical
•The core module, which plugs into the
Up to four as a multidrop RS-485 network, consisting of one primary and up to three secondary maximum number of load cells supported for the indicator is 16. Up to four individual weighing platforms can be configured for a scale system.
The
iQUBE can be configured and calibrated through
920i indicator (Version 2.05 or later), the 920i’s
the
iRev configuration utility, or by using the iQUBE
module of the Revolution III configuration utility.
920i indicator using copper, fiber-optic, or
iQUBE can be
iQUBE consists of two boards:
connections for the load cells, serial communications, analog output, and digital I/O.
connector board, contains the
iQUBE’s
processor and stores configuration and calibration data for the
iQUBE. The core
module provides a discrete A/D for each channel input and converts the analog load cell signal to a digital serial output.
iQUBE units can connect and commun ic ate
iQUBE units. The
920i
Some procedures described in this manual require work inside the enclosure. These procedures are to be performed by qualified service personnel only.
iQUBE or indicator
Authorized distributors and their employees can view or download this manual from the Rice Lake Weighing Systems distributor
www.rlws.com.
site at
iQUBE Options
Options for the iQUBE include the following;
Internal power supply: The 6 VDC power supply
mounts inside the
iQUBE enclosure and requires a
115/230 VAC input. This option is required for applications that do not use the
920i applications that use more than two iQUBE units,
the distance between the
920i and the master iQUBE is
920i indicator and for
more than 75 feet, or the fiber optic modules are used. Analog output: This option consists of a DAC card
that mounts on the core module and converts the
iQUBE’s digital output stream to 0–30 mV or 0–20
mA (passive only). Fiber-optic transceiver: This option mounts on the
connector board to convert the
iQUBE’s serial output
into visible light for fiber-optic interface. When used with the optional power supply, the fiber-optic interface provides electrical isolation of the
iQUBE
from the host. Fiber-optic transceiver to analog output: This
option converts digital fiber-optic data received from the
iQUBE to an analog signal that can be input to the
load cell input of a standard weight indicator. Ethernet: This option mounts on the connector board
to transfer the
Configuration
iQUBE’ s serial output onto the Ethernet.
There are two methods for configuration, using either
920i indicator as the host (menu or iRev
the configuration) or by using the Revolution III utility to configure the the load cells connected to
iQUBE directly. Each method defines
iQUBE, which load cells
comprise a platform, and which platforms make up the scale system.
Introduction 1
Configuration consists of the following steps: Define Load Cells: This is the electrical sensitivity
(mV/V output) and capacity specification of the load cells. Load cell names and serial number can also be specified.
Define Platforms: A platform is a contiguous weigh bridge. Any
iQUBE board can assign load cells to two
separate platforms. A maximum of four platforms can be defined in an
iQUBE system. The relationship
between load cells is also defined as a paired or circular arrangement.
Define Systems: The platforms can be assigned to a system. Up to four unique systems can be defined, however the
920i will only support one system per
serial channel.
Error conditions generate a displayed error message if connected to the
920i which, with an Ethernet card,
can be configured to e-mail the alert message to an address. In addition, there is a visual LED indication on the connector board to identify any load cell that appears to have an abnormal condition.
Cell Emulation
Cell emulation allows the output of a failed load cell to be emulated. Automatic or manual cell emulation can be specified (limited to one cell per scale system), using either truck scale (Type 1) or tank/hopper/floor scale (Type 2) emulation algorithms.
NOTE: Satisfactory results from cell emulation require the load to be centered and the scale installation to be plumb and level.
Load Cell Trimming and Calibration
Cal-Match™ calibration calculates the load cell trim based on a comparison of the signal generated by an applied weight for each load cell to the signal generated by all other load cells. If a known test weight value is used, this calibration also sets the span for the scale.
Three types of Cal-Match calibration can be performed using the
iQUBE. Each type of calibration
captures the initial dead load of the scale and provides a means to trim the outputs of the load cells.
Cal-Match Theoretical calibration allows each cell to be zeroed and trim factors calculated. Based on the cell capacity and sensitivity, the
iQUBE calculates
weight values based on the total signal from all of the cells.
Cal-Match Section calibration requires a weight to be placed over each section. Trimming can be performed by running a weight cart down the middle of the platform, stopping for calibration of each section.
Corner calibration requires weight to be placed over each cell individually. Corner trimming can be performed for platforms using an even or odd number of cells.
Diagnostics (Error 2)
Diagnostic functionality can be enabled for the iQUBE to identify abnormal load cell outputs. This is based on the reference established through cell associations. The diagnostic conditions that can be identified for paired configurations are open bridge or channel, zero reference tolerance, drifting, peak-to-peak noise, and out-of-balance conditions. Diagnostic conditions recognized for circular configurations are limited to open bridge or channel, drifting, and peak-to-peak noise.

1.1 System Configurations and Options

Table 1-1 lists iQUBE model and option part numbers.
920i part numbers listed are for models without A/D
cards.
Model / Option PN
4-channel iQUBE
8-channel
8-channel
iQUBE internal power supply, 6 VDC
iQUBE internal Ethernet interface
iQUBE internal fiber-optic interface
920i internal fiber-optic interface
920i internal Ethernet communications card
920i Serial option card
Remote (external) fiber-optic interface 77789
Analog output, 0–30 mV 77146
Analog output, 0–20 mA (passive) 77797
920i universal model, 115 VAC
920i universal model, 230 VAC
920i deep enclosure, wwithout A/D model,
115 VAC
920i deep enclosure, wwithout A/D model,
230 VAC
920i panel mount model, 115 VAC
920i panel mount model, 230 VAC
920i wall mount model, 115 VAC
920i wall mount model, 230 VAC
iQUBE
iQUBE with digital I/O
Table 1-1. iQUBE Model and Option Part Numbers
92391
92392
92393
77531
77142
77143
77788
71986
67604
77790
77791
93243
93244
77792
77793
77794
77795
2 iQUBE Installation Manual

2.0 Installation

This section describes procedures for connecting load cell, analog output, power, and serial communications cables to the drawings and replacement parts lists for the are included for the service technician.

2.1 Unpacking and Assembly

Immediately after unpacking, visually inspect the
iQUBE to ensure all components are included and
undamaged. The shipping carton should contain the
iQUBE, this manual, and a parts kit. If any parts were
damaged in shipment, notify Rice Lake Weighing Systems and the shipper immediately.
See Section 2.16 on page 16 for parts kit contents.

2.2 Mounting the Enclosure

The iQUBE can be mounted either vertically or horizontally to a flat surface.

2.3 Cable Connections

All models of the iQUBE provide ten cord grips for cabling into the unit, plus a dedicated cord grip for a ground wire. Up to eight load cells can be cabled into
iQUBE; other cord grips allow cabling for serial
the communications, analog output, digital I/O, and AC power. Install plugs in all un us ed co rd grips to prev ent moisture from entering the enclosure.
iQUBE junction box. Assembly
iQUBE
Use a wrist strap to ground yourself and protect components from electrostatic discharge (ESD) when working inside the
iQUBE enclosure.
Channels 1–4
iQUBE
Connector Cell Name
J12A1J16A5
J13A2J17A6
J14A3J18A7
J15A4J19A8
NOTE: For secondary with B, C, or D.
Table 2-1. iQUBE Connector and Load Cell Names
iQUBE units, the A prefix is replaced
Channels 5–8
(8-channel units only)
iQUBE
Connector Cell Name
Figure 2-1 shows two exa mples of load cell naming for eight-cell platforms. While load cells can be wired to any connector on the
iQUBE connector board,
platforms defined as using “paired” sections (including most truck scale applications) must correctly associate these pairs to ensure valid calibration and diagnostic functions.
In the top example of Figure 2-1, the even/odd load cell wiring scheme requires cells A1/A2, A3/A4, A5/ A6, and A7/A8 to be associated as section pairs. In the lower example, the sequential wiring requires pair associations for A1/A8, A2/A7, A3/A6, and A4/A5. Pair association is set in the platform configuration for the scale.
A1
A3
A5
A7

2.4 Load Cells

When wiring load cells, cells wired to iQUBE connectors J12–J19 (8-channel units) are assigned default names A1–A8 (8-channel primary unit) or B1–B8 (8-channel secondary unit). Be aware that graphic representations of the weighing platform shown when configuring the scale assume particular locations for each load cell, based on the connector used (see Table 2-1). Load cells can be renamed during configuration.
iQUBE
A2
A4 A8
A6
A1 A2 A3 A4
A8 A7 A6 A5
Figure 2-1. Load Cell Pairing for Eight-Cell Platforms
Installation 3
+SIG
1
SIG
SHLD
JP1 is located on the back side of the core module
1
+SIG
SIG
+EXC
LOAD CELL 1
–EXC
J12
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 3
–EXC
J14
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 5
–EXC
J16
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 7
–EXC
J18
SHLD
INPUT/OUTPUT LEDs:
OUTPUT: GREEN = RELAY ON INPUT: GREEN = SWITCH CLOSED
1
+SIG
SIG
+EXC
LOAD CELL 2
–EXC
J13
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 4
–EXC
J15
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 6
–EXC
J17
SHLD
1
+SIG
SIG
+EXC
LOAD CELL 8
–EXC
J19
SHLD
J21
IO 8
DAC
C44
C72
C47
C73
C50
C74
C53
C56
C76
C59
C62
C78
C65
8-CHANNEL
MODELS ONLY
IO 7
IO 6
IO 5
IO 4
DIGITAL I/O
ON
123 45678
DIP SWITCH / S1
4-Channel
C75
C77
8-Channel
C79
CORE MODULE
J8
ANALOG 2
1
+SIG
GND
+PWR
IO 3
IO 2
IO 1
1
J20
1
DIGITAL I/O
MODEL ONLY
J6
1
J4
Serial LEDs
JP1
D7
D5
D8
D6
1
EXPANSION MODULE
CELL STATUS LEDs
D1
C1 C2 C3 C4
C5 C6 C7 C8
Version
Label
J3
1
LED EXTENSION
SW1
SETUP
J2
J3
PIN 1
J9
ANALOG 1
SHLD
+SIG1–SIG
SIG
SHLD
BOARD POWER
+PWR
OFF ON
F1
J10
1
GND SHLD
FIBER-OPTIC OR
GREEN =
POWER ON
J11
SECONDARY
POWER
1
GND SHLD
+PWR
ETHERNET
OPTION
J7
B
Y
Z/TXD A/RXD
GNDSHLD
1
GND SHLD
ZB
Y
1
A
J4
Figure 2-2. iQUBE Connector Board (8-channel with Digital I/O) with Core Module and DAC Card
Load Cell Wiring
T o attach load cell cables to the connector board, route the cables through the cord grips on the load cell connector end of the
iQUBE enclosure. Note the load
cell numbering assigned to the connectors (see Figure 2-2).
Strip 1/4-inch of insulation from the ends of the load cell wires. Use the cable clamp tool included in the parts kit to open the connector springs and install wires into the connectors. Wire load cell cables as shown in Table 2-2.
When connections are complete, use cable ties and mounts to secure the load cell cables to the inside of the enclosure.
4 iQUBE Installation Manual
Load Cell Connector
Pins (J12–J19)
Function
1+SIG
2–SIG
3+EXC
4–EXC
5SHIELD
Table 2-2. Load Cell Connector Pin Assignments

2.5 Serial Communications

The J4 and J7 serial communications ports on the
iQUBE connector board support communications
between the PC) or other
Port J7 supports full-duplex RS-232 or
NOTE: Four-wire RS-485 communications with
the card in the indicator. See Table 2-4.
Port J4 supports full-duplex RS-485
To attach serial communications cables, route the cable through the cord grip and wire to the connector. Use cable ties to secure serial cables to the inside of the enclosure.
Table 2-3 sho ws the pin assignments for connectors J4 and J7. See Section 2.6 for information about wiring for secondary units.
Connector Pin Signal
J7
J4
iQUBE and a host device (indicator or
iQUBE units.
four-wire RS-485 communications between the primary
iQUBE unit and a host device.
The communications protocol (RS-232 or RS-485) and port used to communicate with the host device are selected by setting DIP switches on the core module (see Section 2.9 on page 10).
920i requires installation of the serial option
Port J7 is also used by secondary
iQUBE units
to connect to the master and secondary unit.
communication between the primary
iQUBE
unit and any secondary iQUBE, and between successive secondary units (see Section 2.6).
1SHIELD
2GND
3 Z / RS-232 TxD
4Y
5B
6 A / RS-232 RxD
1 A (RS-485 +RxD)
2 B (RS-485 –RxD)
3 Y (RS-485 +TxD)
4 Z (RS-485 –TxD)
5GND
6SHIELD
Table 2-3. Serial Port Pin Assignments
RS-485 Connections to Host 920i
Table 2-4 shows the connections needed for RS-485 communications between a host
920i serial expansion card, PN 67604, must be
The
920i and the iQUBE.
installed in the indicator for 4-wire RS-485 communications with the
920i Serial Option Board
J2 Connector
RS-485 Signal Pin Pin RS-485 Signal
+RxD 1 4 +TxD (Y)
–RxD 2 3 –TxD (Z)
–TxD 3 5 –RxD (B)
+TxD 4 6 +RxD (A)
Table 2-4. RS-485 Connections for 920i Host
NOTE: RS-485 is only supported on Port A of the
iQUBE.
iQUBE
J7 Connector
2-channel expansion board.
Communications Cable Distance Limitations
The maximum cable lengths that can be used for various communications types depend on a number of factors. These include: output impedance of the transmitter; electrical noise in the environment; cable capacitance, gauge, termination, and shielding.
Given that these and other factors will affect the maximum usable cable length, the following distances can be used as a general guide for
iQUBE
communications cabling:
RS-232: 50 ft (15 m) RS-485: 1000 ft (300 m) (Twised pair cable) Fiber-optic: 500 ft (150 m)

2.6 Primary/Secondary Configuration

Up to three iQUBE junction boxes can be configured as secondary units controlled by a primary unit. Figure 2-4 on page 7 shows the primary-to-secondary wiring for multiple units. Successive secondary units are wired in parallel (A to A, B to B, and so on) as shown in Figure 2-5 .
NOTES:
•120Ω termination resistors (included in parts kit) must be installed across the A and B terminals on the J4 connector of the primary unit and between the A and B terminals on the J7 connector of the last secondary unit (see Figure 2-4 on page 7).
All six wires, including shield and ground wires, must be connected between the communicating
iQUBE units.
iQUBE
iQUBE
Installation 5
DIP switches on the core module of each iQUBE must be set to indicate whether the unit is a primary or secondary, the communication protocol and port used, and the secondary address.
For the primary unit, DIP switches 1–3 must all be set OFF. Set switches 5 and 6 based on the protocol (RS-232 or RS-485) and port (J7 or J6) used to communicate with the host device.
For secondary units, DIP switch 5 must be set ON; use switches 1–3 to set the secondary address as shown in Table 2-5.
RS-232 to
Host PC (920i)
RS-232
DIP
Switch
1–3 OFF, OFF, OFF ON, OFF, OFF = SECONDARY1
5 RS-232 = OFF
6 OFF = J7
Primary Unit Secondary Unit
OFF, ON, OFF = SECONDARY2 ON, ON, OFF = SECONDARY3
ON
RS-485 = ON
iQUBE Port
ON = J6
Table 2-5. Core Module Communications DIP Switches
See Section 2.9 on page 10 for more information about the core module DIP switches.
RS-485 to
920i Serial
120
Option Board
RS-485
PRIMARY
iQUBE UNITiQUBE UNIT
J7
1
YBZ/TXD A/RXD
GNDSHLD
TXD
RXD
GND
Figure 2-3. 920i W iring
PRIMARY
iQUBE UNITiQUBE UNIT
J7
120
1
YBZ/TXD A/RXD
GNDSHLD
A RS-485 TXD +
A RS-485 TXD -
A RS-485 RXD +
A RS-485 RXD -
6 iQUBE Installation Manual
ALL SIX WIRES, INCLUDING SHIELD
AND GROUND WIRES, MUST BE
CONNECTED FOR COMMUNICATION
NOTE!
BETWEEN iQUBE UNITS
PRIMARY
iQUBE UNIT
J7
1
120
1
J4
YBZ/TXD A/RXD
GNDSHLD
GND SHLD
ZB
Y
A
TO HOST
INDICATOR OR PC
SECONDARY1
iQUBE UNIT
J7
120
YBZ/TXD A/RXD
GNDSHLD
1
GND SHLD
ZB
Y
1
A
J4
Figure 2-4. Primary-to-Secondary Communications Wiring
PRIMARY
iQUBE UNIT
J7
1
120
1
J4
ALL SIX WIRES, INCLUDING SHIELD
AND GROUND WIRES, MUST BE
CONNECTED FOR COMMUNICATION
INDICATOR OR PC
NOTE!
BETWEEN iQUBE UNITS
TO HOST
SECONDARY1
iQUBE UNIT
SHLD
GNDZYBA
SECONDARYn
iQUBE UNIT
J7
YBZ/TXD A/RXD
GNDSHLD
GND SHLD
ZB
Y
A
YBZ/TXD A/RXD
GNDSHLD
1
GND SHLD
ZB
Y
A
1
1
1
J4
Figure 2-5. Primary-to-Multiple Secondary Communications
J7
120
J4
YBZ/TXD A/RXD
GNDSHLD
GND SHLD
ZB
Y
A
Installation 7

2.7 Digital I/O

The iQUBE junction box is available with support for eight channels of digital I/O. Digital inputs can be set to provide many indicator functions, including all keypad functions. Digital inputs are
active low (0 VDC), inactive high (5 VDC). Digital outputs are typically used to control relays that drive other equipment. Outputs are designed to sink,
rather than source, switching current. Each output is a normally-open collector circuit, ca pable of sinking 25 mA when active. Digital outputs are wired
to switch relays when the digital output is active (low, 0 VDC) with reference to a 5 VDC supply. Auxiliary power is available at connector J20 (see Figure 2-2 on page 4).
Table 2-6 shows the pin assignments for connector J21.
J21 Pin J21 Signal
1I/O 1
2I/O 2
3I/O 3
4I/O 4
5I/O 5
6I/O 6
7I/O 7
8I/O 8
Table 2-6. J21 Pin Assignments (Digital I/O)
Digital inputs and outputs for the
920i indicator are configured using the DIG I/O menu.
8 iQUBE Installation Manual

2.8 Analog Output

The analog output option consists of either a 0-30mV (PN 77146) or 0-20mA (PN 77797) digital-to-analog (DAC) card that plugs into the standard junction box, allowing connection to standard indicators. A 0–20 mA (passive only) DAC is also available for PLC applications. the 0-20mA and the 0-30mV DAC cards connect to J4 on the module. See Figure 2-6 for J4 location.
NOTE: Analog output setup information is supplied with the 920i, VIRTUi, or Revolution III technical
documentation. Analog output from the
iQUBE is sent to connector J9 on the connector board (see Figure 2-2 on page 4). See
Section 2.14.1 on page 15 for more information about installing the analog output option.
PLC
Analog Input
N104
iQUBE core module. The 0–30 mV output simulates the output of a load cell or
iQUBE core
+IN
J9
1
-IN
+SIG
SIG
SHLD
ANALOG 1
Power Supply
+24
+24V Ret
Brown capacitor
150
CORE MODULE
Figure 2-6. 0-20mA Analog Output Wiring
Figure 2-7. 0 - 30mV and 0 - 20mA Converters
ON
J4
DAC Connection
Installation 9

2.9 Core Module DIP Switches

The DIP switches on the iQUBE core module must be set to configure the unit, and to specify the type of serial communications provided by the unit. Table 2-7 lists the DIP switches and their functions.
Switch Function Val ues
1–3 Primary/
secondary address
4 Setup enable/
disable
5Host
communication protocol
6Host
communication port
7 Reserved
8 Load default Load default configuration on
iQUBE as a primary or secondary
OFF, OFF, OFF = PRIMARY ON, OFF, OFF = SECONDARY1 OFF, ON, OFF = SECONDARY2 ON, ON, OFF = SECONDARY3
OFF = setup disabled ON = setup enabled
OFF = RS-232 ON = RS-485
OFF = Port J7 ON = Port J6
power-up (see Section 2.10)
Table 2-7. Core Module DIP Switch Settings

2.10 Core Module Reset Procedure

To reload the default firmware into the iQUBE core module, do the following:
1. Power-off the units can be powered off by temporarily removing fuse F1 (see Figure 2-2 on page 4).
2. Set core module DIP switch 8 ON.
3. Power-on the core module, to cycle from red to green or green to red several times, then off.
4. Power-off the
5. Set DIP switch 8 OFF.
6. Power-on the
iQUBE. Remotely powered
iQUBE. Allow LED D1, on the
iQUBE.
iQUBE. The reset is now complete.
10 iQUBE Installation Manual

2.11 iQUBE Communications Configurations

The following sections describe some of the ways digital or analog output from the iQUBE can be connected to weight indicators.

2.11.1 Copper-Wire Connection to the 920i

A basic configuration of the iQUBE is shown in Figure 2-8. A single 6-conductor load cell cable can be used both to supply 6 VDC power to the included in the page 14).
iQUBE parts kit are used to tap power from the indicator power supply (see Sect ion 2.12 on
NOTE: Applications using more than two iQUBE units must use the iQUBE’s optional internal power
supply.
iQUBE and to exchange serial data with the 920i indicator. Tap and run connectors
Figure 2-8. iQUBE Copper Wire Connection to 920i, Showing RS-232 and DC Power Connections

2.11.2 Fiber-Optic and Ethernet Communications

Both fiber-optic and Ethernet communications cards are available for the iQUBE. Figure 2-9 shows an iQUBE unit with the fiber-optic card and the optional internal power supply installed.
An internal fiber-optic module for the between the
iQUBE and the 920i. The optional remote fiber-optic interface can also be used to convert digital
data carried on a fiber-optic cable from the
920i (see Figure 2-18 on page 16) allows direct fiber-optic communication
iQUBE to an analog signal for any weight indicator.
Figure 2-9. iQUBE Fiber-Optic Connection to 920i or Remote Fiber Module
Installation 11

2.11.3 Remote Fiber-Optic Module (PN 77789)

The optional remote fiber-optic module provides optically isolated digital-to-analog (DAC) conversion of digital data received from the
iQUBE. The analog output from the module can be connected to the analog (load cell)
signal input of a standard weight indicator that can read 0-30mV (0-20mA) referenced to ground (see Figure 2-10).
This option requires that the
iQUBE be fitted with its internal fiber-optic card (see Figure 2-9 on page 11); both
voltage- and current-based DAC cards available for the remote fiber-optic module.
J5
DAC
J3
FIBER-OPTIC
INTERFACE
V1
V1A
V2A V2
AC
POWER
IN
POWER SUPPLY
J4
ANALOG OUTPUT
J1
POWER
IN
ANALOG OUTPUT
TO INDICATOR
Figure 2-10. Remote Fiber-Optic Module
Figure 2-11 shows connector locations on the remote fiber-optic interface.
(BLACK)
DAC
J5
FIBER-OPTIC
J3
INTERFACE
J4
ANALOG OUTPUT
GND
–OUT
+OUT
V1
(BLUE)
V2
TRANSMITTER
J1
POWER
IN
+V
GND
FIBER-OPTIC INPUT
FROM iQUBE
Figure 2-11. Remote Fiber-Optic Interface, Including DAC
12 iQUBE Installation Manual

2.11.4 Analog Output

The analog output from the iQUBE can be connected to the analog signal inputs of any weight indicator that can be read 0-30mV (0-20mA) referenced to ground (see Figure 2-12). Analog output from the digital-to-analog (DAC) card be installed on the
iQUBE core module. Both voltage- and current-based DAC
iQUBE requires that a
cards are available. See Section 2.14.1 on page 15 for more information about DAC card installation.
NOTE: Analog output wiring must include ground wire (pin 3 on connector J9 on the iQUBE connector board).
Figure 2-12. iQUBE Analog Output Connection to Indicator
Installation 13

2.12 Installing Tap and Run Connectors for 920i Power

iQUBE installations that are remotely powered by the 920i indicator, and those that use the 920i internal
fiber-optic module, require tap and run connectors to draw power from the
920i power supply (see Figures
2-13 and 2-14). To install tap and run connectors in the
920i indicator,
do the following:
1. Place red (+6V) wire from
920i power supply
inside the run channel of the tap and run connector. The cable tie used to secure the power supply wires may need to be cut to allow sufficient slack in the wires.
POWER SUPPLY
2. Close side cover of connector until latched.
3. Insert tap wire (+6V supply to connector. Use inspection port to check wire position.
4. Use crimping tool to drive u-contact down flush with top of connector. Close hinged top cover until latched.
5. Repeat procedure for green (GND) wire tap and run connector.
6. Use cable ties to secure power supply wires inside the enclosure.
WARNING!
HIGH VOLTAGE
DISCONNECT POWER BEFORE SERVICING
iQUBE) into
J8
TAP AND RUN CONNECTORS
GREEN (GND)
RED (+6V)
Figure 2-13. 920i Tap and Run Connector Installation
POWER SUPPLY
FIBER-OPTIC
INTERFACE
V1
V2
J4
J8
J3
TAP AND RUN CONNECTORS
GREEN (GND) RED (+6V)
Figure 2-14. 920i Tap and Run Connector Installation for Internal Fiber-Optic Interface
See Section 2.14.4 on page 16 for more information about installing the 920i internal fiber-optic interface.
14 iQUBE Installation Manual
Loading...
+ 37 hidden pages