Volt Encoder Power Supply; Understanding The Ultra1500 Serial Interface; Understanding Ultra1500 Power And Ground Connections - Allen-Bradley Ultra1500 2092-DA1 User Manual

Understanding the
Ultra1500 Serial Interface
Understanding Ultra1500
Power and Ground
Connections

5 Volt Encoder Power Supply

All Ultra1500 drives supply 5V dc for the operation of the encoder. The
following table provides a description of the auxiliary encoder power supply.
Parameter Description
Voltage range of the external power supply for
Output Voltage
proper operation of an encoder.
Current draw from the external power supply for
Output Current
the encoder.
Pin Signal Description
CN2-20 EPWR Encoder Power Out (+5V)
CN2-1 ECOM Encoder Ground
The Ultra1500 includes one serial port that implements a proprietary binary
protocol for serial communication. The RS-232 interface operates at a fixed
38,400 baud, with 8 data bits, no parity, and one stop bit.
The Ultra1500 has three single-row, spring clamp connectors (six, four, and
three position) that provide access to the drive's power system. Refer to Figure
2.1 on page 2-2 for the location of these terminals.
Figure 2.23
Ultra1500 Power Terminals
Input Power Terminals
DC Bus and
Shunt Power Terminals
Motor Power Terminals
1 DC Bus Negative is labelled DC- on the removable connector, but N on the drive cover.
A simplified diagram of the power circuitry internal to the drive is shown in
Figure 2.24.
Ultra1500 Connector Data
L1 – Main AC Power
L2 – Main AC Power
L3 – Main AC Power
L1C – Control AC Power
L2C – Control AC Power
1
N – DC Bus Negative
P1 – Diode Bridge
P2 – DC Bus Positive
B1 – Shunt Resistor +
B2 – Shunt Resistor -
U – Motor Power
V – Motor Power
W – Motor Power
Publication 2092-UM001D-EN-P — July 2005
2-23
Minimum Maximum
4.75V 5.25V
— 150 mA