Edition from 23.11.2017
15
PLD880. Stepper motor driver
www.purelogic.ru8 (800) 555 63 74
09. Protection functions, setup
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.
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.
Terms of Warranty
11
When the protection function operates, the driver switches off stepper
motor coils, red signal ERROR flashes on, GREEN LED STEP/ENB goes
out and error optocoupler is circuited/opened.
Collector (С) and emitter (Е) of error optocoupler is displayed to
connector DB-9M type according to fig.1. SW9 switch-over(Function)
inverts circuit/opening of error optocoupler.
The driver restores its work after alarm cause removal and switching
off/on powel supply.
When there is STEP signal, STEP/ENB blinks. When ENABLE signal is
supplied, STEP/ENB goes out, when no ENABLE signal - STEP/ENB
flashes.
The driver has inbuilt STEP frequency generator – a convenient
function for a test driver start-up without access to PC or any other
external generator of STEP frequency. Generator frequency is regulated
by FREQ potentiometer.
When turned on SW10, the driver can be operated by DIR/ENABLE
signals and change stepper motor step division.
The driver allows to divide electronically physical stepper motor step -
2, 4, 8, 16 and 32.
Thus positioning accuracy is higher. Step division mode is called
microstep division. This mode allows to reduce stepper motor
resonances at low revs.
It is recommended to use PLD880 driver in step division 1:8, 1:16 or
1:32.
In these modes stepper motor rotates as smooth as possible, low-
frequency vibrations are minimal and an automatic compensator of
midfrequency stepper motor resonance works its best.
Switching of step division mode is performed via DIP-switches SW6,
SW7, SW8. Step division choice must be performed only when driver
supply is OFF.
10
Step division option
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