Purelogic PLD331 User manual

01. General information
02. Delivery set
03. Technical features
04. Driver functional capabilities
05. Control Signal Connections to the driver
06. Current and power option
07. Stepper motor connection to the driver
08. Protection functions, setup
09. Step division option
10. Terms of Warranty
INSTRUCTION MANUAL
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PLD331
Microstepping stepper motor driver

Edition from 23.11.2017 3
PLD331. Microstepping stepper motor driver
www.purelogic.ru8 (800) 555 63 74
01
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General information
Delivery set
Technical features
PLD331 is a microstepping stepper motor driver based on TB6560
microchip (TOSHIBA). The device has inbuilt coil short-circuit
protection, polarity reversal power protection, protection against
overvoltage and overheating. The driver works with standard control
protocol STEP/DIR/ENABLE. All driver’s control inputs are optoisolated
and logic levels 2.5V, 3.3V, 5V compatible. The device is optimal for
control of bipolar and unipolar Purelogic R&D stepper motors (PL42/
PL57 series). Work with other stepper motors is also possible. The
driver must be mounted on the heatsink (is not included in the set), not
less than 100 cm2in area.
The microchip 1 (fig. 4) must be mounted on the radiator through
dielectric heat-conducting layer.
• Stepper motor driver PLD331 — 1 pcs.
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01. General information
Stepdivision (microstep)
Max shaft rotation frequency
Module power supply
Operating temperature
STEP Max signal frequency
Operating current of stepper motor driver
Isolation resistance
Unit weight without packaging
50 kHz
0.7А, 1.7А, 2.7А, 3.3А (discrete adjustment)
500 MOhm
0,04 kg
1:1, 1:2, 1:8, 1:16
30 cycles per second
18...30V (bogey value 27V)
0...50 °С
!Check www.purelogic.ru for more information.
POWER OFF DEVICE BEFORE MAKING ANY CONNECTIONS.
Do not mount the power switch after the power source (on the driver
power line).
POWER SWITCH SHOULD BE INSTALLED BEFORE POWER SUPPLY, AT
~220V SIDE.
Do not connect the drivers in series, only ‘star’ connection is allowed.
DO NOT CONNECT POWER SUPPLY’S «-» TO GROUND, mass, housing,
etc.
STRICTLY OBSERVE THE POLARITY OF POWER SUPPLY AND CONTROL
SIGNALS CONNECTIONS.
01 General information 01 General information
Driver functional capabilities
• Optoisolation of module control signals.
• Polarity reversal power protection (reverse switching diode).
• Protection against overheating.
• Convenient dismountable clip connectors to step motor, power source
and control signals.
• Possibility to connect the module control signals STEP/DIR/ENABLE
through RJ-45-type connector.
• Alarm indication, module control signals STEP/DIR/ENABLE.
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PLD331. Microstepping stepper motor driver
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04. Driver functional capabilities
Fig. 1. Stermotor driver PLD331 dimensions
59
50
2 holes
Ø3,1
Ø3,5 930
22
52
47
74,5
Control Signal Connections to the driver
The driver operates with standard signals STEP/DIR/ENABLE. The
signals are powered to the differential optoisolated inputs.
As STEP signal frequency is increased, STEP LED intensity also
changes.
The scheme of differential input device and connection method to the
controller with outputs ‘open collector’ type is shown in fig. 3.
Controlling signals connection to the module is performed through
standard clip connector XP1-XP3 or RJ-45 XP4-type (fig. 5).
STEP signal characteristics — working voltage 2.5 V, 3.3V, 5V (you
may need extra current limiting resistor), current consumption up to
20mА, min signal duration is 5 ms. Stepper motor step is performed on
signal’s front edge.
DIR signal’s characteristics — working voltage 2.5V, 3.3V, 5V (you may
need extra current limiting resistor), current consumption up to 20mА,
action time is 0,2 ms before/after STEP’s front edge.
ENABLE signal’s characteristics — working voltage 2.5V, 3.3V, 5V (you
may need extra current limiting resistor), current consumption up to
20mА, action time is 0,1 ms. Logic unit (input supply) – stepper motor
driver is switched off and coils are off the current, zero – stepper motor
driver is on and stepper motor coils are supplied.
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05. Control Signal Connections to the driver
Fig. 2. General scheme of CNC control
Stepper motor driver

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05. Control Signal Connections to the driver
Fig. 3. Differential inputs device
06 Current and power option
Max supply voltage driver option depends on the applied stepper motor
and desired max rotation speed. Optimal supply voltage calculation
for the stepper motor is carried out according to the formula U=32*v
(stepper motor phase inductance mH), but not more than 35V.
Supply current must be chosen 50...70% from the claimed stepper
motor coil current.
The setting of the working current in XP5 connector is carried out with
jumpers 5 and 6. PWN form in stepper motor coil is chosen in XP5
connector with jumpers 3 and 4. PWN form influences the vibrations
while stepper motor rotates and is selected by experiment.
Stepper motor connection to the driver
PLD331 driver is optimal for bipolar and unipolar stepper motors
Purelogic R&D series PL42/PL57. Stepper motor connection to the
driver is performed as it is shown in fig. 5 (clips PH1.1[+A], PH1.2[-A]
and PH2.1[+B], PH2.2[-B]).
The driver has protection against wrong stepper motor coil connection
and coils linked together / ‘+’ power supply.
Purelogic R&D stepper motor’s connection to the driver is performed
according to fig. 4.
Please note in case of changing phases PH1.x<>PH2.x, the motor will
start rotating in the opposite direction ( inversion analogue of DIR
signal).
The length of wires leading to the stepper motor from the driver must
not exceed 10 meters. Longer wires can lead to driver’s work failures.
It is strongly recommended to interlace the stepper motor wires per
phase, then put this braid to the screened metal sheath. Sheathes and
stepper motor frame must be grounded.
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Fig. 4. Purelogic R&D stepper motor connection to the driver
PH1.1 [+А] Red (RED)
PH1.2 [-А] Orange (ORG)
PH2.1 [+B] Blue (BLU)
PH2.2 [-B] Green (GRN)

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07. Stepper motor connection to the driver
Fig. 5. Stepper motor driver connection scheme
- Jumper is set
- Jumper is removed

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www.purelogic.ru8 (800) 555 63 74
08. Protection functions, setup
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Protection functions, setup
Step division option
All changes of position of jumpers in XP5 must be performed with
power OFF.
Protection against power section overheating – Microchip TB6560 has
inbuilt temperature sensor. When it is 170°С the driver turns off. It will
be on as soon as the temperature drops to ~150°С.
When the protection function operates, the driver switches off stepper
motor coils, red signal ERR flashes on (STEP/DIR indicators will keep
signaling about coming signals to the inputs). The driver restores its
work after alarm cause removal and switching off/on power supply.
Indication:
LED 1 (green.) - timing signal indicator (STEP).
LED 2 (yellow.) - changing of direction indicator (DIR).
LED 3 (green) - signal indicator ENABLE.
LED 4 (red.) - driver alarm indicator (ERROR).
In some cases by interturn short-circuit of stepper motor coil, short-
circuit protection may not work because there is no exceeding of
permissible alarm current. This happens because under such coil
short circuit resistance does not equal 0 and the driver maintains the
specified current.
The driver allows to divide electronically physical stepper motor step -
1, 2, 8 and 16.
Thus positioning accuracy is higher. Step division mode is called
microstep mode. This mode allows to reduce stepper motor resonances
at low revs.
It is recommended to use PLD331 driver in step division 1:8 and higher.
In these modes stepper motor rotates as smooth as possible, low-
frequency vibrations are minimal.
Switching step division mode is carried out in XP5 connector with
jumpers 1 and 2.
Power off device before making step division option.
Terms of Warranty
The warranty period is 12 months after purchasing and is valid only
if all operational conditions and scheduled maintenance are strictly
followed.
1. General terms
1.1. In case of product acquisition as separate components, Seller
guarantees working ability of every component, but does not
assume responsibility for the quality of their joint work (mismatch of
components).
If you have questions please consult our technical support team.
1.2. Seller does not guarantee compatibility of the purchased product
with the one that Buyer already has or bought from third parties.
1.3. Product’s component parts and configuration can be changed by
manufacturer without notice due to the product consistent technical
improvement.
2. Conditions for warranty acceptance
2.1. The product is accepted only in the same completeness of set as it
was purchased.
3. Warranty service procedure
3.1. Warranty service is performed by testing the claimed product
defect.
3.2. If the defect is proved, warranty repair is carried out.
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PLD331. Microstepping stepper motor driver
www.purelogic.ru8 (800) 555 63 74
10. Terms of Warranty
4. We do not assume any responsibility for glass, electric lamps,
starters and expendable materials as well as:
4.1. Damaged product caused by inappropriate transport and store
conditions, wrong connection, operation in abnormal (off-design)
mode, or in conditions which are not manufacturer-supplied (including
temperature and humidity out of limits of recommended range), having
damages due to third-party circumstances (voltage jumps, natural
disasters, etc.), also having mechanical or thermal damages.
4.2. The product with traces of foreign objects or substances impact,
including dust, liquids, insects, also objects having extraneous
inscription.
4.3. The product with traces of unauthorized tampering and (or) repair
process (traces of opening, home-made soldering, elements changing
etc).
4.4. The product with self-diagnostic function that shows improper
exploitation.
4.5. Technically complex product in respect of which assembly
and integration and start-up works were not performed by Seller
specialists or by recommended organizations, except in cases directly
regulated under goods documentation.
4.6. In cases when the product exploitation was performed in
conditions when power supply did not correspond with manufacturer’s
requirements, also when there is no electrical protection device.
4.7. The product which was resold by the initial buyer to the third party.
4.8. The product with defects which were caused by low-quality spare
parts or fulfilled their service life spare parts,consumable materials,
also using spare parts, consumable materials not corresponding with
manufacturer’s requirements.
Produced and accepted in accordance with obligatory requirements of
valid technical documentation and is qualified for exploitation.
Lot number:
Technical
Control
Department

We draw your attention to the fact that there can be
some changes in this instruction due to the product
consistent technical improvement. You can always
download our latest versions at www.purelogic.ru
www.purelogic.ru
Contacts
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149 Office
160, Leninsky avenue, Voronezh,
Russia, 394033
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