Rockwell Automation T6200 Compressor Anti-Surge and Capacity Controller - Manual (Page 11)

Product Overview
1-5
configured as frequency/pulse inputs. Discrete outputs are transistor configurations. A separate
internal 24 volt regulator is supplied for each input/output.
The internal I/O section of the Controller accommodates 32 I/O points. Refer to Table 1-1 for I/O
channel assignment information.
TABLE 1-1 .
Input/Output
Channel Assignments
* Channels 22, 31 and 32 can also be configured as a frequency/pulse input. Channel 32 can also be
configured as a frequency/pulse output.
The process signals supported by the T6200 Controllers are:
• Analog Inputs (4-20 mA, ±20 mA, ±10 Vdc) internally or externally powered
• Analog Outputs (4-20 mA, 0-20 mA)
ƒ Discrete Inputs (On-Off contacts) internally or externally powered
ƒ Discrete Outputs - internally or externally powered
ƒ Pulse Inputs (up to 25 kHz)
Line Power and Transmitter Power
The T6200 Controllers operate on 26 Vdc power. The T6200R subrack supplies redundant AC to
DC power supplies or the 26 Vdc can be obtained from any other reliable power source. Terminal
blocks are provided on the termination panel for primary and secondary (redundant) 26 Vdc power
input. Power for field transmitters, I/Ps, field switches, etc., is distributed through the T6200
Controller eliminating separate input/output power supplies and circuitry.
Both power supplies operate continuously. If one unit fails, it is not necessary to switch to the other
power supply. Both of the 26 Vdc sources are diode-isolated in the T6200 Controller to prevent the
failure of one from affecting the other. The supplies feed redundant power distribution traces on the
termination panel.
System Security
The Controller maximizes its reliability and availability by a design incorporating complete
redundancy of memory, intelligence, communication, and power. The redundancy includes total
process input/output circuitry backup. And, since each termination panel can accommodate both the
primary and backup control boards, the architecture allows for simple plug-in of the redundant
control board. No wiring or cabling is required for redundant configurations.
The integral backup communication link of each unit assures that both control boards (primary and
backup) maintain the same data base. Each control board has its own on-line, sophisticated
I/O Channel Numbers
Type
1 - 8 9 – 16 17 - 22 23-26 27 - 30 31 - 32
T6200C Analog
Input
Analog
or
Discrete
Input
Discrete
I/O *
Analog
I/O
Analog
Output
Discr
I/O*
T6200D Discrete I/O Discrete
Input
Discr
I/O*
TABLE 1-1.