Signature Analysis

Signature analysis can be used in determining the amount of force exerted throughout the press stroke. This can be especially useful in determining if the amount of stress on the press is happening too early in the stroke. It is important to know what tonnage is being developed and where in the press stroke it occurs.

Every press manufacturer provides a press rated tonnage curve and motion diagram, which can be uploaded into our ZT-SLIM monitor. This curve is then plotted against the actual tonnage signature and can be viewed through the user interface software, SlimWare.

The ZT-SLIM's onboard memory allows for operators/setup personnel to retrieve the last 25 signatures. Along with signatures, setpoints can be saved and loaded with each job. These setpoints include:

  • Capacity
  • CCM (Critical Curve Monitoring)
  • High Setpoint
  • Low Setpoint
  • High Enveloping (5-Zones)
  • Low Enveloping (5-Zones)
  • Reverse Setpoint

Each of the alarm types listed above can be set as a top or immediate stop within the ZT-SLIM. Each channel (corner) can be enabled or disabled as well (with a master password). The ZT-SLIM also provides basic statistics such as:

  • Highest Load
  • Lowest Load
  • Last Alarm
  • Last High Alarm
  • Last Low Alarm
  • Number of Capacity Alarms
  • Number of CCM Alarms
  • Number of High Alarms
  • Number of Low Alarms
  • Number of Reverse Alarms

The ZT-SLIM can also interface with a wide variety of equipment ranging from the most sophisticated Allen-Bradley & Siemens programmable logic controllers (PLCs) through the use of OPC server/client tags, to standard personal computers (PCs) through the use of standard text files.

The ZT-SLIM unit also provides a standard option of data-logging. This option saves any alarm, setpoint or configuration change to a text file along with a timestamp and user ID. This can provide a detailed history of any alarms or changes made to the ZT-SLIM unit.

For a more detailed alarm history, our PressNet and MaxNet networking packages allow for detailed reporting by time, press, user and types of alarms.

The ZT-SLIM unit comes standard with the user interface software, SlimWare. This software can be installed on any desktop/industrial PC with the following operating systems:

  • Microsoft Windows 2000
  • Microsoft Windows XP
  • Microsoft Windows XP Embedded
  • Microsoft Windows 2000
  • Microsoft Windows XP
  • Microsoft Windows XP Embedded
  Standard Option
2 or 4-Channel Load Monitoring  
6 or 8-Channel Load Monitoring  
Position-Based Signatures
CCM - Critical Curve Monitoring  
Reverse Load Alarms  
(5) Configurable Envelope Zones  
Job Storage w/Offline Job Editing  
External Job Data and Management  
Hard Hit Signature Storage  
Alarm Data & Logging  
Servo Press Tonnage Monitoring  
PressNet V5
  (Tonnage Networking Software)
Input Voltage 24VDC
Trigger Inputs Resolver, encoder, 10-bit gray code, probe,
  or threshold-based tonnage triggering is standard
Inputs / Outputs (1) shut down relay (solid state w/NO contacts - NC available) Top stop / Immediate stop configurable
 (4) additional relay outputs and (7) sourcing inputs
Wi-Fi / Bluetooth 2.4 & 5GHz 802.1lb/g/n/ac Wireless LAN;
  Bluetooth 4.2 & BLE
USB (4) USB 2.0 ports
Ethernet (1) TCP 10/100 mbps standard;
  (1) Ethernet IP port (optional)
SPM Up to 800 SPM
  Width Height Depth
Dimensions 4.4 " 4.3 " 4.7 "
Name Format Link
ZT-SLIM User Manual PDF link-icon
Slimware V7.0 User Manual PDF link-icon
SlimWare V5 Demo EXE link-icon
Type Name Description Link
Standard Product PM Kit PM Kit includes strain gauge
  sensors, cables and mounting
Standard Product Resolver Precise crank-angle position
Software SlimWare Software user interface with
  the ZT-SLIM unit
Standard Product PressNet Networking software that
  provides detailed production
  and tonnage information
Service Installation On-site product installation link-icon

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