Jack A7 - User Manual

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A7 Operation Manual
1 Installation Instructions
1.1 Product specifications
Product Type A7 Supply Voltage AC 220 ±20%V
Power frequency 50Hz/60Hz Maximum output power 550W
1.2 Port diagram
Plug each connection plug of the machine head into the corresponding socket behind the controller as Figure 1-2-1.18P functional port as
Figure 1-2-2.Well connected, please check whether the plug is firmly inserted.
1.2.1 Name of each port
1.2.2 18P function port corresponding table
12 3 456 7 8 9
Thickness
Detection
Signal
Thickness
Detection
GND
Thickness
Detection
Power supply +5V
// /
Low Oil level
detection GND
Switchgroup
GND
Switchgroup
Power supply
+5V
10 11 12 13 14 15 16 17 18
/
/
/
/
/LowOil
Detection
signal
Switchgroup-
Fill half a needle
Switchgroup-
backstitch
Switchgroup-
Fill the
needle
· Please read this manual carefully, also with related manual for the machinery before use the controller.
· For installing and operating the controller properly and safely, qualified engineers are required.
· Please stay away from arc welding equipment, in order to avoid electromagnetic interference and malfunction of the
controller.
· Keep room temperature bellow 45°c and above 0°c
· Do not use in humidity below 30% or above 95% or dew and mist places.
· Please turn off the power and unplug the power cord, before install the control box and other components,
· To prevent interference or electric leakage accidents, please make the ground work; the power cord ground wire must
be securely connected to earth by an effective way.
· All parts for the repair provided by the Company or approved before use.
· Please turn off the power and unplug the power cord before any maintenance action. There is dangerous high voltage
control box, you must turn the power off after one minute before opening the control box.
· The symbol
in this manual means Safety Precautions, please pay attention to it and strictly follow it, to avoid any
unnecessar
y
dama
g
e.

Safet
y
Instruction
18P function port corresponding The pedals mouth
18P function port
corresponding
Exhaust
encoder port
Stepper
encoder
port
Stepper
power
port

Summary

Safety Instruction

Installation Instructions

1.1 Product specifications

Details the technical specifications of the sewing machine controller.

1.2 Port diagram

Illustrates the layout and function of the controller's connection ports.

1.3 Wiring and Grounding

Guidelines for proper electrical wiring and grounding for safe operation.

Operation Panel Instructions

2.1 Operation Panel Display Instruction

Explains the LCD display and status indicators of the operation panel.

Key Functions

Details the functions of various operational keys on the sewing machine panel.

2.3 Operation panel auxiliary functions

Covers additional functions like parameter adjustment and settings.

Piece;Stitch Count Setting

2.3.5 Piece;stitch count setting

Interface for setting and switching between piece and stitch counts.

2.3.6 Step motor Zero calibration

Procedure for calibrating the step motor to its zero position.

2.3.7 Stitch length adjustment setting

Guide for adjusting stitch length compensation parameters for different tracks.

Thin Thickness Detection

3.1 Thin thickness detection function description

Explains how the system slows down when fabric thickness changes.

3.2 Thin material thickness setting

Procedure for setting thin material thickness identification.

3.3 Thick material thickness setting

Procedure for setting thick material thickness identification.

3.4 Corresponding parameter table of thickness detection and adjustment

Table linking parameter items to their significance and explanation for thickness detection.

System Parameters

4.1 Parameter mode

Instructions on how to enter, adjust, and save system parameters.

System parameters setting list

A comprehensive list of system parameters with their ranges, defaults, and descriptions.

Monitor Mode

4.2 Monitor mode

Details various monitor items and their descriptions for system diagnostics.

Warning and Error Messages

4.3 The warning message

Lists warning codes, their descriptions, and corrective actions.

4.4 Error mode

Provides a guide to troubleshooting specific error codes and their solutions.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The A7 Operation Manual describes a controller for industrial machinery, likely a sewing machine or similar textile equipment, given the frequent mention of stitches, needles, and fabric. The manual emphasizes safe and proper operation, installation, and maintenance.

Function Description

The A7 controller is designed to manage various aspects of machine operation, including stitch length, reinforcing stitches (front and rear), needle stop position, presser foot function, sewing trajectories, power-on voice messages, free sewing, thread trimming, lock sewing, pattern sewing, W bar tacking, multi-section constant-stitch sewing, presser foot control, thickness monitoring, parameter adjustment, and error detection.

The controller allows for precise adjustment of stitch length, with increments of 0.1mm using "+" and "-" keys. It supports different reinforcing sewing modes (Front Reinforcing Sewing, Front Double-reinforcing Sewing, Rear Reinforcing Sewing, Rear Double-reinforcing Sewing) with adjustable stitch counts from 1 to 15. The needle stop position can be toggled between upper and lower stops, and the presser foot function can be turned on or off.

Several sewing trajectories are available:

• Track 1: Standard track to reduce fabric sliding.
• Track 2: Improves winding line to prevent wrinkles.
• Track 3: Reduces broken needles and weakens the thread.
• Track 4: Thick sewing, good feeding.

The controller includes a power-on voice message system that can be enabled or disabled. It supports free sewing and thread trimming, with a dedicated icon on the LCD screen indicating when trimming is enabled. Lock sewing allows for tight stitching, and pattern sewing can be switched between mode and editing. Special functions like W bar tacking and multi-section constant-stitch sewing are also supported.

Thickness monitoring is a key feature, allowing the machine to slow down and adjust needle distance when fabric thickness changes. This function includes settings for thin and thick material thickness identification, with parameters like "A terrier number of threads," "A terrier speed," "Compensation value of over-stalk needle distance," "Thickness detection sensitivity," and "A terrier trajectory."

The operation panel features an LCD module that displays the current sewing mode, parameters, start/end back tacking, presser foot status, needle position, and soft start sewing. Navigation and adjustment are done via "+" and "-" keys for increment/decrement, and left/right keys for selection.

Important Technical Specifications

• Product Type: A7
• Supply Voltage: AC 220 ±20%V
• Power Frequency: 50Hz/60Hz
• Maximum Output Power: 550W
• Stitch Length Adjustment: 0.1mm increments
• Reinforcing Stitch Count: 1-15 stitches (hexadecimal 1-F)
• Speed Adjustment: 50 rpm increments (in Home interface)
• Parameter Range (P01 - Free seam velocity): 200-5000 (Default: 3800)
• Parameter Range (P11 - Slow-start sewing speed): 100-800 (Default: 400)
• Parameter Range (P13 - Maximum speed of reverse stitching): 200-4000 (Default: 3200)
• Parameter Range (P17 - Thick material height): 0-9999 (Default: 0)
• Parameter Range (P23 - Analog quantity of pedal wire cutting position 1): 0-4095 (Default: 1100)
• Parameter Range (P91 - Maximum stitch): 0-70 (Default: 50)
• Parameter Range (P98 - Voice volume): 0-7 (Default: 7)

The manual also lists numerous other parameters (P01-P111) covering various aspects of machine operation, including speeds for different sewing modes, stitch compensation, presser foot settings, clamping angles, and oil level detection. Monitor mode (M01-M49) provides feedback on spindle speed, AD values, busbar voltage, encoder values, IO port values, motor angles, software versions, and error history.

Usage Features

• User-Friendly Interface: The LCD module and dedicated keys provide clear visual feedback and intuitive control over various functions.
• Parameter Adjustment: Users can easily adjust parameters like stitch length, speed, and specific sewing settings. The system allows for saving modified parameters and restoring factory settings.
• Needle Stop Position Setting: The machine allows for precise calibration of the upper needle position by turning the hand wheel and setting zero.
• Piece/Stitch Count Setting: The controller can track and display piece/stitch counts, with adjustable units and set points.
• Step Motor "Zero" Calibration: A specific procedure is outlined for calibrating the step motor to ensure accurate needle distance.
• Stitch Length Adjustment Setting: Detailed instructions are provided for compensating stitch distances for different tracks and adjusting reverse stitching overlap.
• Thickness Detection: The machine can automatically detect fabric thickness and adjust sewing parameters accordingly, preventing over-stalk issues. This feature requires specific calibration for thin and thick materials.
• Voice Broadcast: The system includes voice messages for successful operations and error code solutions.
• Version Number Query: Users can check the panel program version, master control program version, voice version, and recovery code.

Maintenance Features

• Safety Precautions: The manual stresses the importance of reading the manual, using qualified engineers for installation, staying away from arc welding, maintaining environmental conditions (temperature 0-45°C, humidity 30-95%), and ensuring proper grounding.
• Power Disconnection: Users are instructed to turn off power and unplug the cord before any installation or maintenance to prevent electric leakage and high voltage hazards. A one-minute waiting period after power-off is recommended before opening the control box.
• Grounding: Secure grounding of the power cord (yellow and green lines) is crucial for safe operation and to prevent abnormal situations.
• Wiring Guidelines: All power, signal, and ground lines must not be pressed or excessively distorted.
• Factory Reset: A long press of the "Factory Reset" button restores the controller to its default settings.
• Error Mode and Warning Messages: The system provides detailed alarm codes (ALA-2, ALA-3, OFF, AN UP, ALA-6, ALA-7) and error codes (Err-01 to Err-35) with corresponding descriptions and corrective actions. These include issues related to stitch counters, trimming counters, power off, safety switches, speed controllers, stepper motors, arm shaft motors, system undervoltage/overvoltage, electromagnet circuits, current detection circuits, panel communication, and various sensor failures.
• Troubleshooting Steps: For error codes, the manual provides a structured approach:
  1. Check machine connections.
  2. Confirm control box matches the machine head.
  3. Verify factory reset accuracy.
  4. Specific solutions for each error code, often involving power cycling, checking connections, replacing damaged parts, or contacting service providers.
• Oil Level Detection: An alarm (Err-20) is triggered for oil shortage, prompting users to check and refill the oil level.

Jack A7 Specifications