6.1 HAB - Troubleshooting Guide

Introduction

The following chapter is a troubleshooting guide for the Haas Automatic Band Saw 3232. 

This guide includes a table of common issues with the Haas Automatic Band Saw, as well as potential solutions. 

Symptom Table

SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
The band saw blade is experiencing significant vibration. Improper selection of saw teeth per inch. Use the appropriate saw with the correct teeth per inch. Refer to the Saw Blade Selection Section of the Operation Chapter for more information. 
The Saw blade is shifting during operation. Saw blade tension. Refer to the Blade Installation Section of the Installation Chapter for adjusting the tension of the blade.  
The saw blade is experiencing a reduction in cutting efficiency.  Lack of coolant. Inspect the internal coolant tank and coolant pump. Clean metal chips from the coolant tank if needed.
The hydraulic pump will not start.  Low oil. Fill with DTE 32 / 46 oil until it is more than 3/4 full.
Alarm Coolant / Hydraulic Pump Overload. Tripped Breaker. Refer to the Tripped Breakers Section for the corrective action. 
Hydraulic pump will turn off intermittently. The machine has been left to idle.  The hydraulic pumps will need to be powered up once again. 
The machine has started up in the wrong language. Incorrect langauge setting. Refer to the How - To Change Langauge Settings Section for the corrective action. 
Variable Frequency Drive intermittently shuts down.  VFD has been incorrectly Wired.  Refer to the Variable Frequency Drive Wiring chapter for the correction action

Tripped Breakers

1

Corrective action: Check that breakers are set to the on position.

Note: The red indicator will test the breaker[1]. The blue indicator will reset the breaker[2]. If one of the breakers are tripped the green indicator will pop out as shown [3].

Note: The left breaker is for the coolant. The right is for the hydraulic pump. 

Close cabinet and turn the circuit breaker is turned to the ON position.

Control Display should light up.

How - To Change Language Settings

Corrective action: Refer to the following video for the proper steps on changing the language of the Haas Automatic Band Saw. 

6.1 HAB - Variable Frequency Drive Wiring

HAB 3232 - Variable Frequency Drive Wiring

Introduction

The following chapter provides a guide to ensure the correct wiring of the Haas Automatic Band Saw Variable Frequency Drive (VFD).

VFD - Main Terminal Wiring Inspection

1

Power OFF the machine and set the main circuit breaker to the OFF position.

Open the control cabinet of the machine and locate the VFD [1].

Remove the front cover by using the two push tabs found on both sides of the VFD [2].

2

Refer to the chart below to connect each properly labeled wire to its corresponding terminal.

Number / Terminal Cable Label
1 / (R) U
2 / (S) V
3 / (T) W
4 / (U) U1
5 / (V) V1
6 / (W) W1
7 PE
8 PE

VFD - PCB Wiring Inspection

1

Refer to the chart below to connect each properly labeled wire to its corresponding terminal.

Number / Terminal Cable Label  Terminal Name
1 485+ 458+
2 485- 485-
3 D11 D11
4 COM COM
5 V- T/A
6 X14 T/B

VFD - Parameter Inspection

1

Ensure that the VFD is Programmed correctly.

NOTE: VFD parameters must be verified when replacing the VFD.

2

Open the electrical control panel and turn on the machine.

To access the operations panel on the VFD , click the return arrow key [1].

Note:  Program the VFD to align with the setting values in the chart below

Navigate through different parameters using the up and down arrow keys [2].

Press OK to modify the parameter.

Function Code  Function Description  Factory Default  Setting Value 

F0-01

The first motor control mode

2

0
F0-02 Command Source Selection  0 0

F0-09

Moving direction

0

0

F0-10

Maximum frequency

50

200

F0-12

Upper limiting frequency

50.0

200

F0-17

Acceleration time 1

20.0

3.0

F0-18

Deceleration time1

20.0

3.0

F1-00

Motor type

2

2

F1-01

Rated power of motor

7.5

5.0

F1-02

Rated voltage of motor

220

220

F1-03

Rated current of motor

19.0

17.9

F1-04

Rated frequency of motor

50

133.3

F1-05

Rated motor speed

1500

2000

Fd-00

Baud rate

5005

5007

Fd-01

Data format

0

3

3

After entering the values from the chart above, go to parameter F1-37 and set it to 11.

Press the green confirm key [1].

Note: Motor tuning will begin. During the process, the light will turn green [2]. Once tuning is complete, the light will turn red [3].

After tuning is complete, navigate to parameter F0-02 and set its value to 1. Additionally, set the value of parameter F0-03 from 0 to 9.

6.3 HAB - Solenoid Identification

HAB 3232 - Solenoid Identification

The following chapter offers a guide to identifying each solenoid and showing its associated actions.

Note: The solenoids listed in this chart can be found in a cabinet located at the back of the machine behind the electrical cabinet. 

HAB - Solenoid Identification Chart

Refer to the chart below to identify each solenoid and its corresponding function.

Solenoid  Function
1  Work
2 Fast Forward
3 Saw Raise
4 Front Vise Open
5 Front Vise Clamp
6 Rear Vise Clamp
7 Rear Vise Open
8 Material Infeed 
9 Return Material
10 Feeding Buffer

HAB - Solenoid Adjustment Knobs

Refer to the chart below to identify each solenoid adjustment knob, its corresponding function, and the recommended specifications measured in MPa.

Solenoid  Function Spec (Mpa)
1  Blade Tension  3.8-4.1 
2 Front Vise 2.0-3.9
3 Rear Vise 2.0-3.9

Note: Refer to the Blade Installation Chapter of the HAB Manual for more information on regards to adjusting the blade tension . 

Locate the three gauges found on the rear of the machine. Turn one of the knobs counterclockwise to decrease the pressure on the gauge, and clockwise to increase the pressure.

Note:

Guage [2] Controls the Front Vise.

Guage [3] Controls the Rear Vise.