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Toledo Transducers PressWatch LS-ZT Series User Manual

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LS-ZT User's Manual - Installation
PressWatch
Load Signature ZT Series
Load Monitor
User's Manual
Revision: A
DOC #18445
Page
1
Toledo Integrated Systems

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Summary of Contents for Toledo Transducers PressWatch LS-ZT Series

  • Page 1 LS-ZT User’s Manual - Installation PressWatch Load Signature ZT Series Load Monitor User’s Manual Revision: A DOC #18445 Page Toledo Integrated Systems...

  • Page 2: Table Of Contents

    LS-ZT User’s Manual - Installation Table of Contents Limited Warranty ........................4 Features Overview ........................ 5 Specifications........................7 Installation ........................... 9 Mounting the LS-ZT ......................9 LS-ZT Components ......................10 Conduit Hole Selection ..................... 11 AC Power Requirement and Connection ................12 Tonnage Sensor Connection .....................
  • Page 3 LS-ZT User’s Manual - Installation Figure 1-7: Tonnage Sensor Wiring ..................16 Figure 1-8: Resolver Input Descriptions ................17 Figure 1-9: Resolver Wiring ....................18 Figure 1-10: Resolver Setup ....................19 Figure 1-11: Shutdown Relay Wiring ..................22 Figure 1-12: Serial Port Connection ..................23 Figure 1-13: Serial PressNet Connection ................

  • Page 4: Limited Warranty

    LS-ZT User’s Manual - Installation Limited Warranty This unit is warranted by the manufacturer, Toledo Transducers, Inc., to be free of defects in workmanship and materials for one year from date of manufacturer’s shipment. This warranty is limited to repairing or replacing products which manufacturer’s investigation shows were defective at the time of shipment by the...

  • Page 5: Features Overview

    LS-ZT User’s Manual - Installation Features Overview The PressWatch LS-ZT Series is a press tonnage monitor with signatures. It integrates tonnage monitoring and signatures with enveloping into ONE system. It features a large 10.1” touch screen interface, making the tonnage and signatures easy to read and access.
  • Page 6 LS-ZT User’s Manual - Installation THIS PAGE INTENTIONALLY LEFT BLANK DOC #18445 Page Toledo Integrated Systems...

  • Page 7: Specifications

    LS-ZT User’s Manual - Installation Specifications Tonnage No. of Channels Two or Four (Six or Eight optional) Sensor Inputs Full bridge strain gage sensors 120 to 1,000 ohms Up to (8) 350 ohm sensors Sensor Excitation Built-in 10VDC @ 250mA max Sensor Input Connections Terminal blocks Balance Range...
  • Page 8 LS-ZT User’s Manual - Installation Shutdown Relays (2) solid state relays (N.O.) – Top and Immediate Stop 0.5 AMP @ 250V AC/DC General Resolver Built-in excitation supports standard 5000Hz rotor excited positional resolver Computer Interface Giga LAN Ethernet (x2) Power requirements 95 Watts max.

  • Page 9: Installation

    LS-ZT User’s Manual - Installation Installation ➢ 1. Mounting the LS-ZT The LS-ZT is an electronic instrument and must therefore be protected from physical stresses such as shock and vibration. Shock mounts are provided with every LS-ZT for this purpose. Failure to use these shock mounts may result in premature failure of the instrument and possibly void your warranty.

  • Page 10: Ls-Zt Components

    LS-ZT User’s Manual - Installation 2. LS-ZT Components Figure 1-2: LS-ZT Components Note: The above figure details the layout of a standard 8-Channel LS-ZT. The layout of a 4-Channel LS-ZT will vary slightly. DOC #18445 Page Toledo Integrated Systems...

  • Page 11: Conduit Hole Selection

    LS-ZT User’s Manual - Installation 3. Conduit Hole Selection Follow Figure 1-3 to select the proper conduit hole for cabling. The holes are for ¾” conduit, but they can be enlarged in the field if a larger fitting is required. BOTTOM VIEW DOOR CONDUIT HOLES...

  • Page 12: Ac Power Requirement And Connection

    LS-ZT User’s Manual - Installation 4. AC Power Requirement and Connection AC power is connected to the LS-ZT as shown in Figure 1-4. Use Conduit Hole #1 (see Figure 1-3) for the AC Power Wiring. Use the proper fuse as indicated. Figure 1-4: AC Power Wiring DOC #18445 Page...

  • Page 13: Tonnage Sensor Connection

    LS-ZT User’s Manual - Installation 5. Tonnage Sensor Connection Refer to Figure 1-5 for the procedures below to connect tonnage sensors properly: 1) Power down the unit. Open the door of the LS-ZT enclosure. 2) Run Tonnage Sensor Cables through the Conduit Hole #3 (see Figure 1-3), and upward through the central wireway.

  • Page 14: Figure 1-5: Tonnage Sensor Input

    LS-ZT User’s Manual - Installation Figure 1-5: Tonnage Sensor Input DOC #18445 Page Toledo Integrated Systems...

  • Page 15: Figure 1-6: Tonnage Sensor Cable Stripping

    LS-ZT User’s Manual - Installation Illustration A - Sensor Cable Termination 1) Strip the sensor cable as shown in Figure 1-6 below. Be sure not to nick any of the signal conductors or cut the braid shield. Figure 1-6: Tonnage Sensor Cable Stripping 2) Strip approximately ¼"...

  • Page 16: Figure 1-7: Tonnage Sensor Wiring

    LS-ZT User’s Manual - Installation Illustration B - Sensors Connection The LS-ZT accepts the signals from Toledo Transducers T-400 sensors as well as other strain gage sensors. Figure 1-7 illustrates the sensor connections. T400 Sensor T400 Sensor Tension Force Compression...

  • Page 17: Resolver Connection

    LS-ZT User’s Manual - Installation 6. Resolver Connection The LS-ZT resolver input has a built-in excitation which supports standard 5,000 Hz rotor-excited positional resolvers. The input can be configured in Master Mode or Slave Mode. In Master Mode, the LS-ZT supplies excitation voltage to the resolver and is wired directly to the resolver. In Slave Mode, the LS-ZT does not supply excitation voltage to the resolver and is wired to the resolver input terminal of a Master device, where the resolver signal is shared.

  • Page 18: Figure 1-9: Resolver Wiring

    LS-ZT User’s Manual - Installation Resolver Wiring: Figure 1-9: Resolver Wiring DOC #18445 Page Toledo Integrated Systems...

  • Page 19: Resolver Input Setup

    LS-ZT User’s Manual - Installation 7. Resolver Input Setup 1) The resolver input is set up by configuring the resolver dip switches on the control module. Figure 1-10: Resolver Setup DOC #18445 Page Toledo Integrated Systems...
  • Page 20 LS-ZT User’s Manual - Installation 2) If the LS-ZT is the only equipment to interface with the resolver, the control module’s DIP switches should be set to MASTER mode. If the resolver also connects to an AMCI resolver card, or other similar equipment, the control module should be set to SLAVE mode. Note: The top two DIP switches must both be set to MTR (Master) or SLA (Slave).
  • Page 21 LS-ZT User’s Manual - Installation 6) With the press running, check to see if the ST1 and ST2 LEDs turn on. They should fade on and off, opposite to each other. When fully on, they should have a similar brightness to the ROT LED.

  • Page 22: Shutdown (Stop) Relays

    LS-ZT User’s Manual - Installation 8. Shutdown (Stop) Relays Two internal relays are provided for press shutdown, one for top-stop operation and one for immediate-stop operation. Relay rating is 0.5 Amp, 240V AC/DC. Relay contacts open for fault condition. Figure 1-11: Shutdown Relay Wiring The function of these relays will vary, depending on the type of alarm that occurs and how it is configured in SlimWare.

  • Page 23: Serial Port Connection

    LS-ZT User’s Manual - Installation 9. Serial Port Connection An optional RS422/485 serial port can be used for interfacing with a wide variety of instruments like Programmable Logic Controllers, Industrial PCs, and laptop computers. RS422/485 allows the implementation of a daisy chain (multi-drop) serial network, such as the PressNet Networking Suite.

  • Page 24: Figure 1-13: Serial Pressnet Connection

    LS-ZT User’s Manual - Installation The wiring diagram below illustrates the connection to a RS422/485 serial daisy chain PressNet network. Figure 1-13: Serial PressNet Connection DOC #18445 Page Toledo Integrated Systems...

  • Page 25: Operation

    LS-ZT User’s Manual - Operation Operation ➢ 1. Overview Figure 2-1: System Overview The LS-ZT uses our exclusive SlimWare HMI (Human-Machine Interface) software. SlimWare can provide and monitor all information stored in the LS-ZT including tonnage, setpoints, alarm history and signatures (tonnage curves). The LS-ZT is a powerful tonnage monitor that does more than protect your press and dies from hard-hits.

  • Page 26: Initial Startup

    LS-ZT User’s Manual - Operation 2. Initial Startup The initial communications settings are as follows: • Communication Mode: Ethernet • IP Address: 192.168.16.180 • Subnet Mask: 255.255.255.0 • TCP Port: 31000 • Address: 0 SlimWare will start automatically upon boot-up. It can also be manually started by either double-clicking the shortcut on the desktop or by the following: Start >>...

  • Page 27: Main Window

    LS-ZT User’s Manual - Operation 3. Main Window Figure 2-4: SlimWare Main Window The main window is always displayed regardless of what page a user is on. The main window includes all of the navigation buttons, press angle, strokes per minute, job number, name and description, status bar and the historical data log.
  • Page 28 LS-ZT User’s Manual - Operation o Statistics – Pressing this button will load the statistics page. This page displays information such as the highest load, number of high alarms and last alarm. Personnel logged in with a setup or master password can clear the alarm history from this page. o Setpoints –...

  • Page 29: Tonnage

    LS-ZT User’s Manual - Operation 4. Tonnage Figure 2-5: Tonnage Screen (4-Channel) The tonnage page displays all relevant tonnage information. This information includes current tonnage, alarm status of each channel, the monitor mode (setup, learn or normal) and a graphical representation of each corner’s high/low setpoint windows with regards to current tonnage.
  • Page 30 LS-ZT User’s Manual - Operation The setup mode button is only available when a user is logged in. The monitor should only be placed in setup for the beginning or end of runs. Setup mode is not recommended for normal production use, as several alarm modes are bypassed. II.
  • Page 31 LS-ZT User’s Manual - Operation VI. Bar Graphs • The bar graphs next to each channel display the relationship between the current tonnage and the high and low setpoint window. • This graph can be changed to display either the current tonnage with regards to the high and low setpoint window, or the benchmark with regards to the percentage variation of each hit.

  • Page 32: Signatures

    LS-ZT User’s Manual - Operation 5. Signatures Figure 2-6: Signature Screen (4-Channel) The signature page is used to display historical or live signatures from the LS-ZT monitor. To navigate to the signature page, simply press the “Signatures” button on the right side of the main screen. Figure 2-6 shows a typical four (4) channel signature with enveloping.
  • Page 33 LS-ZT User’s Manual - Operation ▪ All – This view will overlay all four corners into one window. This is best used to view differences between channels. Click the signature window to return to the 4- corner view. ▪ Total – This view shows the total for the selected slide(s). Click the signature window to return to the 4-corner view.
  • Page 34 LS-ZT User’s Manual - Operation • To view the details of each signature (peak, CCM, envelope and capacity at each degree), use the four (4) buttons in the bottom left-hand corner of the signature window. A vertical red line will appear through the signature viewing area. To change the degree, use the four (4) navigation buttons mentioned above.

  • Page 35: Statistics

    LS-ZT User’s Manual - Operation 6. Statistics The statistics page is used to detail the number and types of alarms that have been recorded. From this page, any user can view the various alarms for each channel. Figure 2-7: Statistics Screen Figure 2-7 shows a typical four (4) channel LS-ZT unit’s historical statistics.

  • Page 36: Setpoints

    LS-ZT User’s Manual - Operation 7. Setpoints Figure 2-8: Standard Setpoints Screen (4-Channel) The setpoints page displays and configures the LS-ZT unit’s alarm setpoint values. From this page, setpoints such as high and low setpoints, high and low benchmark percentages and reverse setpoints can be altered.
  • Page 37 LS-ZT User’s Manual - Operation B. Peak Tonnage • Peak tonnage is the current tonnage that the LS-ZT has recorded. This value is specific to the monitor mode (Standard, First Level, Etc…). • Peak tonnage is read only and cannot be changed. C.
  • Page 38 LS-ZT User’s Manual - Operation G. Reverse Tonnage • Reverse tonnage is current reverse tonnage that the LS-ZT has recorded. • Also called “Snap Thru” tonnage, this is tonnage that is applied to the press once the punch stamps through the part. •...

  • Page 39: Figure 2-9: Envelope Setpoints Screen (4-Channel)

    LS-ZT User’s Manual - Operation Envelope Setpoints Figure 2-9: Envelope Setpoints Screen (4-Channel) Enveloping allows for a form-fitting curve through the entire press stroke. Enveloping goes above and beyond a simple high and low setpoint by calculating different high and low limits throughout each degree of the press stroke.

  • Page 40: Configure

    LS-ZT User’s Manual - Operation 8. Configure Settings There are 5 total configuration pages. From these pages, a user logged in with a master password can access such features as tonnage calibration, user settings, communication settings, capacity values and alarm bypass settings. Figure 2-10: Configure Settings - Names Screen Figure 2-10 shows the initial configure page (Settings).

  • Page 41: Figure 2-11: Configure Settings - User Preferences Screen

    LS-ZT User’s Manual - Operation Figure 2-11: Configure Settings - User Preferences Screen • User Preferences o Features ▪ Virtual Keypad – Enabled by default, this calls a keypad to the foreground when an alpha or numeric entry is required. This is to be used when a mouse and keyboard is not available (touch-screen applications).
  • Page 42 LS-ZT User’s Manual - Operation o Appearance ▪ Normal Window – Selecting this option will allow the user to change the size and position of SlimWare like any other window (click-and-drag, etc.). It is recommended to restart SlimWare after this option is changed. ▪...
  • Page 43 LS-ZT User’s Manual - Operation logged in. Setting this option will override the operator personnel reset alarm option. ▪ Enable Exit Without Password – Checking this option allows SlimWare to be closed, regardless of the login status. When unchecked, the user must be logged in with the master password before SlimWare can be closed.

  • Page 44: Figure 2-12: Configure Settings - External App Screen

    LS-ZT User’s Manual - Operation Figure 2-12: Configure Settings - External App Screen • External Application Hotkey o External App – Checking this option will enable the external application button above the Login/Logout button. This button is used to call a third-party program to the front.

  • Page 45: Figure 2-13: Configure Settings - Job Settings Screen

    LS-ZT User’s Manual - Operation Figure 2-13: Configure Settings - Job Settings Screen • Job Settings o Save Changed Setpoints To Job– When changing setpoints (standard or enveloping) to a loaded job, the changes can be: ▪ Always saved ▪ Prompted before saving ▪...

  • Page 46: Figure 2-14: Configure Hardware/Trigger - Hardware Configuration Screen

    LS-ZT User’s Manual - Operation Hardware / Trigger The hardware/trigger page contains the basic tonnage monitor features such as the monitor type, number of channels, corner capacity, type of position instrument, decimal place precision and enveloping mode. The hardware/trigger page is split up into three different tabs (Hardware Configuration, Capacity, and Trigger).
  • Page 47 LS-ZT User’s Manual - Operation ▪ Multi-Strike – Used by servo presses. Similar to Pendulum mode, but several strikes are used to produce a single part. o Channels ▪ The number of channels (sensor inputs) the LS-ZT unit is to monitor, normally four (4).

  • Page 48: Figure 2-15: Configure Hardware/Trigger - Capacity Screen

    LS-ZT User’s Manual - Operation Figure 2-15: Configure Hardware/Trigger - Capacity Screen The capacity settings for the unit should be set during initial startup and should not be changed thereafter. Changing the capacity will affect all other setpoints. • Capacity o Outer –...

  • Page 49: Figure 2-16: Configure Hardware/Trigger - Trigger Screen

    LS-ZT User’s Manual - Operation Figure 2-16: Configure Hardware/Trigger - Trigger Screen • Trigger o Trigger Method ▪ Threshold – Setting the trigger to threshold will allow a user to enter a desired total tonnage value at which the monitor should start monitoring. For example, if 100 tons is entered, the monitor will not begin its peak hold circuit until 100 total tons has been obtained.
  • Page 50 LS-ZT User’s Manual - Operation ▪ Encoder – Similar to resolver method. Use this method when an incremental encoder is wired into the encoder input on the LS-ZT control module. • The angle field is read-only and displays the current resolver/encoder/gray code position.

  • Page 51: Figure 2-17: Configure Alarm Settings Screen (4-Channel)

    LS-ZT User’s Manual - Operation III. Alarm Settings Alarm settings can be configured from the Alarm Settings screen (see example below). Each type of alarm can be configured for a specific type of stop including top or immediate stop. Alarms can also be bypassed on a channel-by-channel basis.

  • Page 52: Figure 2-18: Configure Comms/Network - Common Screen

    LS-ZT User’s Manual - Operation Comms / Network The Comms (communication) / Network screen contains all the settings pertaining to the communication between SlimWare and the LS-ZT control module, hard-hit software connections and opc server and client tag definitions. Once configured during setup, the communication and network settings should not be adjusted unless communications have been terminated.
  • Page 53 LS-ZT User’s Manual - Operation remote PC. If the remote PC is unavailable, SlimWare will attempt to store the alarm information in a local database. Once the remote PC becomes available, the alarm data stored in the local PC will be transferred to the remote PC database.

  • Page 54: Figure 2-19: Configure Comms/Network - Ethernet Screen

    LS-ZT User’s Manual - Operation Figure 2-19: Configure Comms/Network - Ethernet Screen • Ethernet o This tab contains Ethernet-related communication settings. These settings are only changeable when the SlimWare Communication Mode is set to Ethernet. o TCP/IP Settings ▪ Remote IP – The IP Address of the LS-ZT control module. Default is 192.168.16.180 ▪...
  • Page 55 LS-ZT User’s Manual - Operation If the SlimWare communication method is set to Ethernet, and communication has been lost, follow these steps to establish communication with the LS-ZT control module. • Ethernet Communication Setup o Verify that the Ethernet cable is connected between the Panel PC and the LS-ZT control module.

  • Page 56: Figure 2-20: Configure Comms/Network - Serial Screen

    LS-ZT User’s Manual - Operation Figure 2-20: Configure Comms/Network - Serial Screen • Serial o This tab contains Serial-related communication settings. Some settings are only changeable when the SlimWare Communication Mode is set to Serial. o SLIM Comport Settings ▪ This section is only available when the Communication Mode is set to Serial.
  • Page 57 LS-ZT User’s Manual - Operation If the SlimWare communication method is set to Serial, and the serial communication has been lost, follow these steps to establish communication with the LS-ZT control module. • Serial Communication Setup o If communications are currently running, press the green “Communications Running”...

  • Page 58: Figure 2-21: Configure Comms/Network - Plc Screen

    LS-ZT User’s Manual - Operation Figure 2-21: Configure Comms/Network - PLC Screen • o This tab contains PLC-related communication settings. Configure these settings when the LS-ZT will communicate directly to a PLC. o PLC Settings ▪ Enable PLC Communication – Check this box to enable communications between the LS-ZT and the PLC located at the IP Address listed in the PLC IP Address field.
  • Page 59 LS-ZT User’s Manual - Operation ▪ Enable OPC – If checked, SlimWare will attempt to read the OPC tags defined from the tag names and server address. ▪ Server Name – This is the OPC server name. By default, this is CimQuestInc.IGOPCAB.1 ▪...

  • Page 60: Calibration

    LS-ZT User’s Manual - Operation Calibration This details the tonnage calibration for the LS-ZT unit. This should only be done by a trained Toledo Integrated Systems technician or someone else with tonnage monitor calibration knowledge. Refer to the Calibration Procedure of this manual for further details. **Warning: Improper calibration of the LS-ZT unit can result in physical damage to the press.
  • Page 61 LS-ZT User’s Manual - Operation • Display/Displaying Balance – Press this button to display the current sensor balance for each channel. After pressing this button, the values in the “Balance/Gain” fields show the sensor balance. This mode is used for calibration purposes. The monitor will not update its peak tonnage while it is displaying the balance.

  • Page 62: Job Settings

    LS-ZT User’s Manual - Operation 9. Job Settings The job settings can be controlled through SlimWare itself or externally through INI (configuration) files. From SlimWare, users can add, edit or delete job setpoints. To access the job settings page, click Figure 2-4 anywhere in the job group box near the bottom of the screen (see , point E).

  • Page 63: Figure 2-24: Edit Existing Job Screen

    LS-ZT User’s Manual - Operation • The external job folder is located in the SlimWare data directory. Normally, this path is: C:\ProgramData\Toledo Integrated Systems\SlimWare 7\ExtData. • To view the INI file structure type, view section 10 for all external file type structures.

  • Page 64: Figure 2-25: Create New Job Screen

    LS-ZT User’s Manual - Operation III. Create New Job • To create a new job, select the “Create New Job” tab. The window below will load. Figure 2-25: Create New Job Screen • Enter the desired job number, job name and description for the new job and select “Create New Job”.

  • Page 65: Figure 2-26: Delete Existing Job Screen

    LS-ZT User’s Manual - Operation Delete Existing Job Figure 2-26: Delete Existing Job Screen • To remove an existing job, select the “Delete Existing Job” tab and highlight the job that is to be removed. Once highlighted, select “Delete Job”. A message box will appear asking for confirmation;...

  • Page 66: External Configuration Files

    LS-ZT User’s Manual - Operation External Configuration Files There are two (2) configuration files that control job, login and setpoint features. These two configuration files are named Ext_Job.ini and Slimware_Stat.ini. These files are to be written to the following location: C:\ProgramData\Toledo Integrated Systems\SlimWare 7\ExtData\ The above path reflects the default installation path.

  • Page 67: Figure 2-28: Slimware_Stat.ini File

    LS-ZT User’s Manual - Operation Slimware_Stat.ini • Slimware_Stat.ini controls all features related to setpoints, login and other functions with the LS Figure 2-28: Slimware_Stat.ini File For all items defined below, only one variable is required when writing the Slimware_Stat.ini. For example, to reset the monitor, only the reset command needs to be sent.
  • Page 68 LS-ZT User’s Manual - Operation • Loginlevel – By writing a “3”, “2”, “1” or “0”, users can be logged in or out. Below are the login levels and equivalent values: o Master: “3” o Setup: “2” o Operator: “1” o Log Out: “0”...

  • Page 69: Live Data Output Feature

    LS-ZT User’s Manual - Operation Live Data Output Feature The Live Data Output feature provides a means for SlimWare to communicate the current peak load values and alarm status to external applications. This is accomplished via a Comma-Separated-Value (CSV) file, named “livedata.csv”...
  • Page 70 LS-ZT User’s Manual - Operation • The channel alarm status values are stored in standard ASCII format. The status is represented by a decimal number (0-7), which equates to the following alarm types: o 0 = No alarm o 1 = Capacity alarm o 2 = CCM alarm o 3 = High Setpoint alarm o 4 = Low Setpoint alarm...

  • Page 71: Calibration Procedure

    LS-ZT User’s Manual – Calibration Procedure Calibration Procedure ➢ Control Module Analog Module In order for the LS-ZT to display accurate tonnage information, the unit must be properly calibrated. Calibration is performed by using SlimWare and the Analog module (see above) which is located inside the LS-ZT enclosure.
  • Page 72 LS-ZT User’s Manual – Calibration Procedure b) Enter the press capacity on the Capacity tab. c) Choose the appropriate trigger method on the Trigger tab. If using resolver or encoder for triggering, set the offset so that the resolver angle matches the press angle. 3) Enable “Setup Mode”...
  • Page 73 LS-ZT User’s Manual – Calibration Procedure b) Determine the amount of spacers needed with your load cells. Cycle the press without load cells to ensure correct height. 5) Place the load cells in the correct position in the press. a) All load cells should be equal distance from the sides and front and rear. For example, 12”...
  • Page 74 LS-ZT User’s Manual – Calibration Procedure f) Go to SlimWare’s Configure → Calibration page (see figure below). g) Push the “Display Balance” button. h) The Balance/Gain fields should be close to zero. If not, push the “Zero the Balance” button. The “Balance/Gain” column should become all zeroes. i) If calibrating an 8-Channel unit, repeat step 6 with the 2nd Analog module for CH6-9.
  • Page 75 LS-ZT User’s Manual – Calibration Procedure 8) Adjust the gain. a) Cycle the press a few times. b) The peak tonnage is shown in the “Channel Tonnage” column. c) Push the “Display Gain” button. The gain values are shown in the “Balance/Gain” column.
  • Page 76 LS-ZT User’s Manual – Calibration Procedure d) Enter the load cell values in the “Load Cells” column. e) If the values in the “Load Cells” column match the values in the “Channel Tonnage” column, the Analog module is already set to the correct gain. You can now skip to Step f) Adjust the Gain pot for each channel until its Gain value matches the value in the “Desired Gain”...
  • Page 77 LS-ZT User’s Manual – Calibration Procedure 9) Record Gain Numbers. a) The values in the “Desired Gain” column are the Gain Numbers. Record these gain numbers (instead of, or in addition to, the DC voltage gain) on the calibration card located on the side of the Analog module.
  • Page 78 LS-ZT User’s Manual – Calibration Procedure 10) Document the LS-ZT Settings. a) Fill out all applicable settings including Press No., resolver dip switch configuration, capacities, and trigger method on the calibration card located on the side of the Control module. See the example below. DOC #18445 Page Toledo Integrated Systems...
  • Page 79 LS-ZT User’s Manual – Calibration Procedure 11) Make linearity check. a) Go to the Tonnage page (see figure below). b) Raise the shut height in .020 to .030 inch increments to decrease tonnage. c) Cycle the press and impact the load cells. d) Compare the tonnage applied to the load cells to the tonnage displayed on the LS-ZT.
  • Page 80 LS-ZT User’s Manual – Calibration Procedure THIS PAGE INTENTIONALLY LEFT BLANK DOC #18445 Page Toledo Integrated Systems...

  • Page 81: Operator's Guide

    LS-ZT User’s Manual – Operator’s Guide Operator’s Guide ➢ • The LS-ZT tonnage monitor reads the force generated as a stamping press produces parts. By comparing this force to a known, good benchmark tonnage, the LS-ZT can generate high and low limits (setpoints) and check the force from each stroke to ensure that it falls within this acceptable range.
  • Page 82 LS-ZT User’s Manual – Operator’s Guide THIS PAGE INTENTIONALLY LEFT BLANK DOC #18445 Page Toledo Integrated Systems...

  • Page 83: Appendix

    LS-ZT User’s Manual – Appendix Appendix Sensor Installation (Doc# 11080) Calibration Sheets (2) (Form# 1224) DOC #18445 Page Toledo Integrated Systems...
  • Page 84 LS-ZT User’s Manual – Appendix THIS PAGE INTENTIONALLY LEFT BLANK DOC #18445 Page Toledo Integrated Systems...

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