Glentek SMB9675-1A-1-7700 User manual

INSTALLATION
&
OPERATION MANUAL
Model SMB9675-1A-1-7700
FADAL REPLACEMENT
SPINDLE DRIVE
MANUAL#: 9675-1035-000
REVISION: (A)
DATE: 9 Sep 2015
Fadal is a trademark of Fadal Machining Centers, we have no affiliation with Fadal or Mag IAS

www.glentek.com
2 MANUAL # 9675-1035-000-A

www.glentek.com Table of Contents
MANUAL# 9675-1035-000-A 3
TABLE OF CONTENTS
CHAPTER ONE: GENERAL........................................................................................................................................................................... 5
1.1 OVERVIEW ......................................................................................................................................................................................... 5
1.2 INTENDED APPLICATION ........................................................................................................................................................................ 5
1.3 MODE OF OPERATION .......................................................................................................................................................................... 6
CHAPTER TWO: INSTALLING A GLENTEK SPINDLE DRIVE INTO A FADAL VMC........................................................................................ 7
2.1 REMOVING THE OLD DRIVE ....................................................................................................................................................................7
2.2 MECHANICAL INSTALLATION .................................................................................................................................................................. 7
2.3 ELECTRICAL INSTALLATION ..................................................................................................................................................................... 7
CHAPTER THREE: INITIALIZATION AND POWER UP.................................................................................................................................. 9
3.1 BEFORE ANY INITIALIZATION .................................................................................................................................................................. 9
3.2 TURNING THE POWER ON..................................................................................................................................................................... 9
3.4 OPERATING THE SPINDLE.......................................................................................................................................................................9
3.5 POT ADJUSTMENTS .............................................................................................................................................................................. 9
3.6 RIGID TAP TEST (OPTIONAL).................................................................................................................................................................. 9
CHAPTER FOUR: TROUBLESHOOTING AND MAINTENANCE .................................................................................................................. 11
4.1 STATUS DISPLAY CODES ...................................................................................................................................................................... 11
4.2 MAINTENANCE.................................................................................................................................................................................. 11
CHAPTER FIVE: WARRANTY, FACTORY REPAIR, AND SAFETY................................................................................................................ 12
5.1 WARRANTY ...................................................................................................................................................................................... 12
5.2 FACTORY REPAIR ............................................................................................................................................................................... 12
5.3 SAFETY ............................................................................................................................................................................................ 13
APPENDIX A - SPINDLE DRIVE CONNECTIONS ........................................................................................................................................ 14
A-1 MOTOR POWER CONNECTORS............................................................................................................................................................. 14
A-2 CONTROLLER I/O CONNECTORS ........................................................................................................................................................... 14
A-3 ENCODER INPUT CONNECTOR.............................................................................................................................................................. 15
A-4 ENCODER OUTPUT CONNECTOR........................................................................................................................................................... 16
A-5 HOST (SERIAL COMMUNICATION)CONNECTOR....................................................................................................................................... 16
A-6 POWER AND SIGNAL WIRING............................................................................................................................................................... 16
APPENDIX B - SPINDLE DRIVE CONNECTION INTERFACE ....................................................................................................................... 17
B-1 STATUS DISPLAY................................................................................................................................................................................ 17
B-2 CONTROLLER INPUT AND OUTPUT SIGNALS ............................................................................................................................................ 17
B-3 ANALOG INPUT,COMMAND SIGNAL .....................................................................................................................................................18
B-5 ENCODER FEEDBACK ..........................................................................................................................................................................20
B-6 ENCODER OUTPUT............................................................................................................................................................................. 20
B-7 LOAD METER OUTPUT........................................................................................................................................................................ 20
B-8 PC INTERFACE .................................................................................................................................................................................. 21
B-9 POWER INPUT AND MOTOR OUTPUT .................................................................................................................................................... 22

Table of Contents www.glentek.com
4 MANUAL # 9675-1035-000-A
APPENDIX C - APPLICATION SOFTWARE................................................................................................................................................. 23
C-1 MOTIONMAESTRO©.........................................................................................................................................................................23
C-2 INSTALLING MOTIONMAESTRO©......................................................................................................................................................... 23
C-3 COMMUNICATING WITH THE SPINDLE DRIVE OR VFD DRIVE ..................................................................................................................... 24
APPENDIX D - DRAWINGS & DIAGRAMS ................................................................................................................................................ 25
SPINDLE DRIVE INSTALLATION DRAWING 1.................................................................................................................................................... 25
SPINDLE DRIVE INSTALLATION DRAWING 2.................................................................................................................................................... 26
SPINDLE DRIVE CONNECTION DIAGRAM PAGE 1.............................................................................................................................................27
SPINDLE DRIVE CONNECTION DIAGRAM PAGE 2.............................................................................................................................................28
SENSORED VECTOR COMMAND INPUT CONTROL DIAGRAM.............................................................................................................................. 29
SENSORED VECTOR VELOCITY CONTROL LOOP DIAGRAM .................................................................................................................................30
SENSORED VECTOR CURRENT CONTROL LOOP DIAGRAM ................................................................................................................................. 31

www.glentek.com Chapter One
MANUAL# 9675-1035-000-A 5
Chapter One: General
1.1 Overview
The Glentek Inc. SMB9675-1A-1-7700 spindle drive uses flux vector technology to close a torque
(current) feedback loop. When applied to a three phase induction motor, the result is servo motor like
performance from a standard three phase induction motor. The Digital Signal Processor (DSP) based
spindle drive uses its high speed math processing capability to continuously calculate flux and torque
vectors and to maintain a constant 90 degree phase difference between the vectors. This technique
allows torque control from zero speed to base speed and above. Encoder feedback provides the
shaft position data needed to calculate the vectors and velocity data, thus, Vector Control allows
precise speed control down to and including zero speed of an induction motor.
The SMB9675-1A-1-7700 spindle drive can operate in sensor-less mode (no feedback is needed).
This mode of operation is usually referred to as inverter mode or VFD (Variable Frequency Drive)
mode. With advanced mathematic algorithms and latest DSP technology, the Glentek SMB9675-1A-
1-7700 is optimized to produce a steady starting torque from standstill right up to full speed with high
efficiency. The applied frequency and voltage are increased at a controlled rate and ramped up to
accelerate the load without drawing excessive current.
1.2 Intended Application
The SMB9675-1A-1-7700 is intended as a drop-in replacement spindle drive for FADAL
. See the part numbers listed in the Mode of Operations section (section 1.3)
for the available configurations.

Chapter One www.glentek.com
6 MANUAL # 9675-1035-000-A
1.3 Mode of Operation
Changing the Mode of Operation dial (SW1) (see pg. 26) will modify the configuration of the spindle
drive. Aligning the dial to any of the positions listed below will alter the drive to those settings. If none

assistance. The drive is shipped with the dial at position 0 (zero)
Mode of Operation Position Settings
Position
Power (HP)
RPM
Sensor/VFD
Part Number
Model Number
0
15
10K
Sensor
7700
SMB9675-1A-1-7700
1
15
7.5K
Sensor
7701
SMB9675-1A-1-7701
2
15
10K
VFD
7702
SMB9675-1A-1-7702
3
10
10K
Sensor
7703
SMB9675-1A-1-7703
4
10
7.5K
Sensor
7704
SMB9675-1A-1-7704
5
10
10K
VFD
7705
SMB9675-1A-1-7705
6
20
10K
Sensor
7707
SMB9675-1A-1-7707
7
20
7.5K
Sensor
7708
SMB9675-1A-1-7708
8
20
10K
VFD
7709
SMB9675-1A-1-7709
9
5
10K
Sensor
7710
SMB9675-1A-1-7710
A
5
7.5K
Sensor
7711
SMB9675-1A-1-7711
B
5
10K
VFD
7712
SMB9675-1A-1-7712
C
-
-
-
-
-
D
-
-
-
-
-
E
-
-
-
-
-
F
-
-
-
-
-
Note: Positions C, D, E, and F are reserved for future configurations.
Note: Align the dial to the desired configuration before installation or disable the drive with an M5
(spindle stop) command BEFORE rotating the dial. The four place seven-segment displays will
display the operation mode selected (i.e. 7700, 7701, etc.) for seven seconds, then reverts to
displaying motor rpm. Enable the drive to run in the new mode.

www.glentek.com Chapter Two
MANUAL# 9675-1035-000-A 7
Chapter Two: Installing a Glentek Spindle Drive into a Fadal VMC
2.1 Removing the old drive
Turn off the power to the VMC and wait 5 minutes before beginning removal. Disconnect all the
wires and cables. If any wires are not labeled take note of their location. Of the cables, only the
Control cable and the Delta/Wye cable can be confused, both are 6 terminal connectors. The control
cable has 6 sockets in the connector and Delta/Wye cable has 3 sockets in the connector. Unbolt the
old drive and remove.
2.2 Mechanical Installation
Install the new drive (slots down) by first resting the drive on the lower mounting studs in the panel
and positioning the drive over the studs at the top. Hold the drive against the panel and loosely
install four screws, top two first. Then tighten all four screws.
2.3 Electrical Installation
2.3.1 Power Terminal Block Connections
Begin the wiring by connecting the AC, regenerative braking, motor, and green ground wires.
Match the wire labels to the terminal block labels. Check connections for tightness. See Appendix A
for more details.
2.3.2 Load Meter Cable
Connect the load meter cable by connecting the black wire to P1-1 screw terminal and the red wire
to P1-2.
2.3.3 Spindle Control Cable
Connect the spindle control cable to P2. The spindle control cable has 6 sockets installed; do not
mistake the wye/delta connector with only 3 sockets.
2.3.4 Wye/Delta Cable
Connect the wye/delta cable to P4 (wye/delta is an option for 7500 RPM spindles; your VMC may not
have this cable).
2.3.5 Encoder Feedback Cable
Connect the encoder feedback from the motor (9 terminal connector) to P3 (VFD drives doe not
need this cable).
2.3.6 Rigid Tap Cable (Encoder Output To CNC Control)
gid tap cable from the CNC to P5 of the spindle
drive. Use the installation drawing (Drawings & Diagrams) to match the wires by color to the correct
terminal.

Chapter Two www.glentek.com
8 MANUAL # 9675-1035-000-A
Photo 1: A successful spindle drive installation.
Photo 2: Close up of a successful spindle drive installation.

www.glentek.com Chapter Three
MANUAL# 9675-1035-000-A 9
Chapter Three: Initialization and Power Up
3.1 Before Any Initialization
The only setup required by the end user is to select the mode of operation. All the tuning has been
preset at the factory, meaning the drive will run correctly. If applying minor changes (adjusting input
command offsets, etc.) to the spindle drive, use the procedures below for reference.
3.2 Turning the Power On
Carefully recheck the wiring. Restore power to the VMC. For seven seconds the four rightmost seven-
segment displays will show the spindle drive configuration. Afterwards, those four displays will show
the rpm value of the spindle motor, not the spindle itself. Confirm the desired mode of operation has
been selected.
3.4 Operating the Spindle
From the VMC control panel operate the spindle and confirm the spindle runs at the commanded
speeds and in the correct direction (CW and CCW). It is important to note, the 4 digit display on the
drive reports the speed of the spindle motor, the speed of the spindle itself may be different
depending on the machine design and mode. The drive calculates the rpm from the encoder signals
when operating in vector mode, when the drive is used in VFD or inverter mode (no encoder) the rpm
is calculated from the input command signal voltage received from the Fadal control.
3.5 Pot Adjustments
Normally, no adjustments are needed. However, for convenience, there are two pots (see page 26)

CCW directions. The signal gain pot can be used to make small adjustments to the speed of the
spindle. The pots are not intended to correct large differences between commanded speed and actual
speed. If after initial installation the expected speeds are significantly different from the commanded
speeds double check that themode of operation from the table is correct for the VMC. Consult your
distributor or Glentek technical support for additional help.

Attach the black lead to TP7 (see page 26) and the red lead to TP3 for balance and to TP4 for signal
gain. Adjust the voltage to 1.50VDC.
3.6 Rigid Tap Test (Optional)
If desired you can test the rigid tap mode of your VMC by performing the following procedure. This
procedure is drawn from the FADAL maintenance manual. Install the test screw (SVT-0077). The
 round stock, by threading a 14 TPI Acme thread. Program is for
Format 1. Use test program #6000 or the following program:

Chapter Three www.glentek.com
10 MANUAL # 9675-1035-000-A
%
N1 O6000 (RIGID TAP CYCLE)
N2 G80
N3 S750
N4 G91
N5 X0.1 Y0.1 G1 F10.
N6 M5
N7 G4 P2000
N8 G84.1 Z-1. R+0 F500. Q0.0714
N9 M45
N10 X-0.1 Y-0.1 G1 F10.
N11 M45
N12 M45
N13 M45
N14 M45
N15 G80
N16 G4 P2000
N17 M99 P5
N18 (!)
N19 (NOTE: O5827 CNC88 TEST WAS MOVED TO TA, 5!!!)
%
3801
Once the program is loaded, jog the z axis down so the screw can be indicated.
 that the program is running
correctly. Depress the SINGLE STEP key. Be sure the test screw returns to its original position.
Set the indicator as shown below, the tip must be touching the lower thread halfway into the thread,
the second thread from the bottom.
Run the test and observe the indicator. The reading should not deviate from zero 
either side of zero. If necessary, consult the FADAL maintenance manual for your machine.
Photo 4: Test screw
Photo 3: Test screw in setup with dial
indicator
Photo 5: Test screw in toolholder

www.glentek.com Chapter Four
MANUAL# 9675-1035-000-A 11
Chapter Four: Troubleshooting and Maintenance
4.1 Status Display Codes
4.2 Maintenance
The only maintenance required is to periodically inspect the fans. The blades should be free turning
and built up dirt should be removed from the blades.
Display
Name
Description
Possible Cause
1
EEPROM Fault
Parameter EEPROM
checksum fault
Internal problem,
contact Glentek
8
Reset
External reset
Improper configuration
setting
8.
Reset
Drive processor is in
reset
Internal problem,
contact Glentek
A
Overspeed
Motor RPM is over
speed limit
Mechanical linkage
problem
b
Bus Over
Voltage
DC bus exceeded
450VDC
Regenerative braking
circuit not working, regen
resistor does not match
spindle, check fuse in
regen circuit
C
Clamp
(Disabled)
Spindle drive disabled
Control is disabling the drive
E
Encoder
Fault
Encoder fault detected
Encoder faulty or encoder
wiring broken
F
Foldback
Motor current draw
exceeded set point
Mechanical binding in
motor or spindle
H
Heatsink Over
Temperature
Heatsink exceeded
65ºC
Fan(s) failed
L
LS/ECB
Motor RMS over
current
Mechanical binding in
motor or spindle
0
Normal
Operation
Drive enabled
Normal when rotating
S
HS/ECB
Output short circuit
detected
Motor windings shorting
U
Bus Under
Voltage
DC bus below 50VDC
nominal
AC input voltage to drive
is low or off
Single
segment
Normal
Operation
Drive enabled
Normal @ zero speed

Chapter Five www.glentek.com
12 MANUAL # 9675-1035-000-A
Chapter Five: Warranty, Factory Repair, and Safety
5.1 Warranty
Any product, or part thereof, manufactured by Glentek, Inc., described in this manual, which under
normal operating conditions, in the plant of the original purchaser, thereof proves defective in material
or workmanship within one year from the date of shipment by us, as determined by an inspection by
us, will be repaired or replaced free of charge, FOB our factory, El Segundo, California, U.S.A.
provided that you promptly send to us notice of the defect and establish that the product has been
properly installed, maintained, and operated within the limits of rated and normal usage, and that no
factory sealed adjustments have been tampered with. Glentek's liability is limited to repair or
replacement of defective parts.
Any product or part manufactured by others and merely installed by us, such as an electric motor,
etc., is specifically not warranted by us and it is agreed that such product or part shall only carry the
warranty, if any, supplied by the manufacturer of that part. It is also understood that you must look
directly to such manufacturer for any defect, failure, claim or damage caused by such product or part.
Under no circumstances shall Glentek Inc. or any of our affiliates have any liability whatsoever for
claims or damages arising out of the loss of use of any product or part sold to you. Nor shall we have
any liability to yourself or anyone for any indirect or consequential damages such as injuries to person
and property caused directly or indirectly by the product or part sold to you, and you agree in
accepting our product or part to save us harmless from any and all such claim.
5.2 Factory Repair
Should it become necessary to return a spindle drive to Glentek for repair, please follow the
procedure described below:
1. Reassemble the unit, if necessary, making certain that all the hardware is in place.
2. Tag the unit with the following information:
A. Serial number and model number
B. Company name, phone number, and name of representative returning the unit
C. A brief note explaining the malfunction
D. Date the unit is being returned
3. Repackage the unit with the same care and fashion in which it was received. Label the package
with the appropriate stickers (e.g. FRAGILE: HANDLE WITH CARE).
4. Contact a Glentek representative, confirm that the unit is being returned to the factory and obtain
an RMA (Return Material Authorization) number. The RMA number must accompany the unit
upon return to Glentek.
5. Return the unit by the best means possible. The method of freight chosen will directly affect the
timeliness of its return.

www.glentek.com Chapter Five
MANUAL# 9675-1035-000-A 13
5.3 Safety
Serious or fatal injury can result from failure to work safely on this equipment.
Only qualified personnel should install and maintain this spindle drive.
The drive has capacitors that remain charged after the power is shutoff. Wait 5 minutes to allow
the capacitors to discharge before removing the cover or working on the drive.
Be sure the system is properly grounded before applying power.
Regenerative braking resistors can generate temperatures that ignite combustible materials
or vapors. Keep all combustiblematerials way from braking resistors.
Braking resistors should be shielded to prevent burn injuries.
The motor will rotate when autotuning, take precautions to prevent injury and damage
to equipment.

Appendix A www.glentek.com
14 MANUAL # 9675-1035-000-A
Appendix A - Spindle Drive Connections
A-1 Motor Power Connectors
Table A-1.1 Motor Power Designations
Pin #
I/O
Name
Function
1
Input
L1
AC LINE 1, three phase AC input
2
Input
L2
AC LINE 2, three phase AC input
3
Input
L3
AC LINE 3, three phase AC input
4
Rsvd
N/C
Reserved
5
Rsvd
N/C
Reserved
6
Output
B-
DC BUS Return output
7
Output
R1
Brake/Regen resistor output
8
Output
R2
Brake/Regen resistor output
9
Output
B+
DC BUS + output
10
Output
T1
Motor Output Phase T1
11
Output
T2
Motor Output Phase T2
12
Output
T3
Motor Output Phase T3
Table A-1.2 Motor Power Connectors
Connector Type/Description
12-Pin Terminal Block
Terminal Block, Barrier,
12 Position, 10-4 AWG
Marathon 985-GP-12
A-2 Controller I/O Connectors
Table A-2.1 Load Meter Designations: Labeled as P1 on spindle drive
Pin #
I/O
Name
Function
1
Output
- (BLACK)
GND
2
Output
+ (RED)
Current Monitor Output
Table A-2.2 Load Meter Connector
Connector Type/Description
2-Pin Terminal Block
Terminal Block, Single Row,2 Position,
22-12 AWG
Magnum A202202NL

www.glentek.com Appendix A
MANUAL# 9675-1035-000-A 15
Table A-2.3 Spindle Control Designations: Labeled as P2 on spindle drive
Pin #
I/O
Name
Function
1
Input
/ COM
Spindle Common (for Forward
& Reverse)
2
Input

Spindle Reverse
3
Input

Spindle Forward
4
Input
/SPEED COM
CMD Common
(for Fault & Speed)
5
Input/
Output

Emergency Stop/Spindle Fault
6
Output
SPEED CMD
Spindle Speed Command
Table A-2.4 Wye/Delta Config Designations: Labeled as P4 on spindle drive
Pin #
I/O
Name
Function
1
Input
WYE / 
Wye or Delta modes
2
N/C
Reserved
Reserved
3
Input
HIGH /  GAIN
High Gain or Low Gain modes
4
Input
Common
Common for Wye/Delta and
High Gain/Low Gain modes
5
N/C
Reserved
Reserved
6
N/C
Reserved
Reserved
Table A-2.5 Spindle Control and Wye/Delta Config Connectors
Connector
Type/Description
6-Pin Male Mating
Connector Housing
Female Crimp Terminal
Receptacle, 6 Position,
22-18 AWG
Molex 03-09-1064
Molex 02-09-1119
A-3 Encoder Input Connector
Table A-3.1 Encoder Input Designations: Labeled as P3 on spindle drive.
Pin #
I/O
Name
Function
1
Input
Shield
Cable Shield
2
Power
+5V
Encoder +5VDC out, 150mA max
3
Power
GND
Encoder Power Return
4
Input
B -
Encoder Channel B -
5
Input
B +
Encoder Channel B +
6
Input
Z +
Encoder Index + (Channel Z +)
7
Input
A -
Encoder Channel A -
8
Input
A +
Encoder Channel A +
9
Input
Z -
Encoder Index - (Channel Z -)
Table A-3.2 Encoder Input Connector
Connector
Type/Description
9-Pin Male Mating
Connector Housing
Female Crimp Terminal
Receptacle, 9 Position, 22-18 AWG
Molex 03-06-1092
Molex 02-06-1103

Appendix A www.glentek.com
16 MANUAL # 9675-1035-000-A
A-4 Encoder Output Connector
Table A-4.1 Encoder Output Designations: Labeled as P5 on spindle drive.
Pin #
I/O
Name
Function
1
Power
GND
Encoder Power Return
2
Output
AOut +
Encoder Channel A +
3
Output
AOut -
Encoder Channel A -
4
Output
BOut +
Encoder Channel B +
5
Output
BOut -
Encoder Channel B -
Table A-4.2 Encoder Output Connector
Connector Type/Description
5-Pin Terminal Block
Terminal Block,5 Position,
22-12 AWG
Phoenix Contact 1934890
A-5 Host (Serial Communication) Connector
Table A-5.1 Host (Serial Communication) Designations: Labeled as P6 on
spindle drive.
Pin #
I/O
Name
Function
1
Reserved
Reserved
Reserved
2
Reserved
Reserved
Reserved
3
Reserved
Reserved
Reserved
4
Input/output
COMMON
Logic Ground
5
Output
RS-232 TX
RS-232 Transmit
6
Input
RS-232 RX
RS-232 Receive
7
Reserved
Reserved
Reserved
8
Reserved
Reserved
Reserved
Table A - 5.2. Host (Serial Communication) Connector
Connector Type/Description
8-Pin Male Mating Connector
Standard Commercial, RJ-45
Commercial, RJ45
A-6 Power and Signal Wiring
A-6.1 Recommend 3-phase input, 3-phase output, and chassis GND power wiring, 8 AWG
(8.36 mm2) or larger, 105°C rated PVC or better.
A-6.2 Recommend BUS+, BUS Return, and brake power wiring, 10 AWG (5.26 mm2) or larger,
105°C rated PVC or better.
A-6.3 Recommend all signal wiring, 22 AWG (0.326 mm2) or larger, 105°C rated PVC or better.

www.glentek.com Appendix B
MANUAL# 9675-1035-000-A 17
Appendix B - Spindle Drive Connection Interface
This section describes the spindle drive connections and how they are used in the typical application. Refer
to the spindle drive in Drawing & Diagrams. This drawing indicates the location of the
pins described below along with the location of the connector they can be found on.
B-1 Status Display
A diagnostic 7-segment LED display is provided for determining the general operating condition of the
spindle drive.
When the drive is operating normally, one of the outer six segments is lit. Each of the six outer segments
represents one of the six commutation states in a commutation cycle of a motor. A commutation cycle
consists of two poles. In a 4-pole motor, the LED will cycle through its six outer segments 2 times for one
revolution of a rotary motor. When the motors current is clamped, (i.e. held to zero), or the spindle drive is
in a fault condition, one of the fault characters will be displayed as is appropriate to the fault or state.
Note: See Chapter 4 for more information on Drive status codes.
B-2 Controller Input and Output Signals
Signals that typically are connected to an external controller are described in this section. These signals
include the primary command signal interface to the spindle drive, Forward/Reverse, Wye/Delta, Hi
Gain/Lo Gain, Estop/Fault, load meter, encoder output signal, and common.
Signal Description
SPEED CMD Command signal analog input, reference to CMD Common.
SPINDLE  Enable the motor in the CCW direction.
SPINDLE  Enable the motor in the CW direction.
WYE /  Enable the motor either in WYE or DELTA mode.
HIGH /  GAIN Enable the motor either in HI or LO gain mode.
 /  Bi-directional, functions as Emergency Stop input or Fault output.
LOAD METER Analog output, indication of the load current on the motor.
AOut Encoder A channel Output.
BOut Encoder B channel Output.
ZOut Encoder Z index Output (not used).
For the actual pin out of above signals, see Appendix A - Controller I/O Connector section

Appendix B www.glentek.com
18 MANUAL # 9675-1035-000-A
B-3 Analog Input, Command Signal
Pins SPINDLE CMD and /SPEED COM are the command input pins. The command input takes a differential
analog signal as referenced to the spindle driveltage is expected to range from -10 volts
to +10 volts (typical).
The velocity command signal will be 0 to +10 VDC in unipolar control (non-rigid tap mode), ±10 VDC for
bipolar control (rigid tap mode).
Note: CMD COMMON (AGND) is connected to Logic Common (Digital GND) inside the spindle drive.
B-4 Controller Inputs/Outputs - Direction Control, WYE / , HIGH/ GAIN
Inputs,  Input, and  Output
The spindle drive accepts SPINDLE  and SPINDLE  signals for operating four rotation
commands.


ACTION
closed
open
drive on, CCW rotation, unipolar speed control
open
closed
drive on, CW rotation, unipolar speed control
closed
closed
drive on, bipolar speed and direction control
open
open
drive off, no voltage or flux to the motor
SPINDLE  and SPINDLE  are enable and direction control signals. That is, each signal
enables motor movement in one direction. If both signals are closed (the signals are pulled low), motor
movement in both directions is enabled. When only one enable is closed ( or  on), the
velocity command is unipolar, and when both enables are closed ( and  on), the velocity
command is bipolar.
When both  and  are closed, the spindle drive is in rigid tap mode. When only 
or  is closed, the spindle drive is in non-rigid tap mode (sometimes calle
rigid tap mode and non-
non-rigid tap mode only.
332
SPEED CMD
0.33uF
10.0K
-
+
TLE084
10
98
TP6 AGND
0.022uF
Vref
0.022uF
AGND
FLT/SPEED COM
TP5
1.50K
1.50K
TO DSP A/D CONVERTER
10.0K
Command Signal Analog Input Schematic

www.glentek.com Appendix B
MANUAL# 9675-1035-000-A 19
When  and  are both open (signals are left floating) the spindle is off and spins freely.
However, the change from closed to open ( and/or  on to both off) is also a signal to stop
(just like Emergency Stop); the drive is never supposed to coast to a stop.
The change from WYE to DELTA or vice versa occurs only when the drive is off ( and 
open) and themotor is stopped or below 50 rpm.When the CNC wants DELTA mode, the signal WYE / 
is pulled low.
When the CNC wants LOW GAIN, the signal HIGH /  GAIN is pulled low.
 and  share the same I/O pin at the spindle drive. A spindle is declared by the spindle
drive. Status good is 10 VDC thru a 1K pull-up resistor. 0 VDC indicates a fault condition to the CNC. The
Fault output is open collector that can sink 500 mA max. When  is asserted (signal is pulled low),
drive is to totally ignore , , and the velocity command, and ramp down to a stop.
0.33uF
1.00K
40106
5 6
TO DSP
MMBD7000
1 3
40106
9 8
40106
3 4
HMA124
1
2
4
3
40106
13 12
TO DSP
10.0K
HIGH/LOW GAIN
+5V
4.99K
10.0K
FAULT
1.21K
+5V
MMBD7000
1 3
WYE/DELTA
TO DSP
IRLL014
4.99K
10.0K
HMA124
1
2
4
3
4.99K
REVERSE
+5V
MMBD7000
1 3
FROM DSP
+3.3V
+10V
2.00K
1.21K
40106
1 2
AGND
HMA124
1
2
4
3
+5V
10.0K
4.99K
TO DSP
FORWARD
+5V
HMA124
1
2
4
3
10.0K
10.0K
1.21K
+5V
1.00K
HMA124
1
2
4
3
10.0K
4.99K
MMBD7000
1 3
40106
1 2
1.21K
TO DSP
+5V
MMBD7000
13
MMBD7000
1 3
TO DSP
10.0K
1.21K
Controller I/O Schematic

Appendix B www.glentek.com
20 MANUAL # 9675-1035-000-A
B-5 Encoder Feedback
The following pin description defines the main encoder feedback input port.
Signal Description
---------- ----------------------------------
+5V Drive supplied 5 volt source (output)
A+ / A - Encoder A channel input
B + / B - Encoder B channel input
Z + / Z - Encoder Z channel input (not used)
The spindle drive can supply 5 volts of encoder power. The source is rated at 150 mA.
The encoder input uses a DS26LV32 differential line receiver. By default, the encoder feedback is
configured for receiving differential signals (single-ended configuration is available upon request). The
spindle drive accepts nominal encoder frequency of 5 MHz (maximum frequency of up to 10 MHz is
possible, but is system dependent). The Z channel is edge sensitive such that swapping Z + and Z - does
not change the behavior of the spindle drive.
B-6 Encoder Output
The encoder out signals are differential output signals. The encoder output pins are buffered
representation of the motor encoder feedback. The encoder output uses a 26C31 differential line driver.
Encoder channels A and B are available as pins AOut +, AOut -, BOut +, BOut - on P5.
B-7 Load Meter Output
This is an indication of the load on the motor. The output ranges from -10 volts to +10 volts and has
16-bit resolution.
2.5 VDC = 100% absolute motor current (100% of continuous current)
3.75 VDC = 150% absolute motor current (150% of continuous current)
TP1 (AN0)
3.01K
+3Vref
FROM DSP (SCLK)
Vref
20.0K3.01K
220pF
AGND TP7 (AGND)
FROM DSP (D/A_0)
AGND
LOAD METER + (RED)
0.0022uF
AGND
3.01K
Vref
0.1uF
0.0022uF
3.01K 20.0K
150
220pF
FROM DSP (SI)
0.1uF
-
+
TLE084
3
21150
AUX. ANALOG OUT
AGND
DAC8532
1
2
3
45
6
7
8Vdd
VREF
VFB
VoSYNC
SCLK
DIN
GND
20.0K
AGND
TP2 (AN1)
20.0K
+3.3VA LOAD METER - (BLACK)
+
-TLE084
5
67
1uF
Load Meter Output Schematic