Yaskawa SmartTrac PG Card - Manual (Page 7)

SMART TRAC PG Card
Technical Manual TM 3554-0020 Smart Trac PG Card
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Smart Trac PG Card
General Capabilities
A Smart Trac PG Card added to your Smart Trac AC1 provides closed loop flux
vector control and closed loop speed control. With the card, 5 V to 12 V
differential quadrature signals at a rate of up to 300 KHz with a 540 ohm input
load may be input. Quadrature phasing of encoder inputs is 90 degrees +/- 22
degrees maximum at 300 kHz. Follower applications may use a second encoder
input. A 12 VDC power supply rated at 200 mA supplies power to the encoder.
The Smart Trac PG Card also provides position control. Start and stop signals
control two 32-bit counters that can be used to measure the rotation of either
start or stop signals. The Start and Stop signals can come from one of three
sources: the marker pulse of either encoder; one of the two digital inputs (i.e.,
connected to proximity switches); or software command.
The two 12 VDC input signals can be used as general purpose inputs if not
needed for position control.
Two analog input channels can accommodate either load cells or potentiometers.
The input voltage range for each channel is ± 600 mV or ± 10 Volts, selectable.
The Smart Trac PG Card also supplies:
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an A/D converter with 12 bits of resolution.
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a +5VDC, 50 mA power supply.
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reference voltages of +10VDC and -10VDC, both rated at 10 mA.
Quick Start
1. Remove all Smart Trac cards except the Smart Trac Inverter and CPU
cards per instructions in "Installing the Smart Trac PG Card. "
2. Install the Smart Trac PG card as the second card of the card stack.
3. Make connections to the PG card terminal blocks per information
contained in this manual and your situation.
4. Replace all other cards per the instructions in "Installing the Smart Trac
PG Card."
5. Power up and test functionality of your Smart Trac AC1, including that
of the Smart Trac PG card.
Closed-loop Control
Position Control
Digital Input
Analog Input