8
1.
I
NTRODUCTION
The ATC770 Pressure/Process Controller is a microprocessor-based instrument, with the capability of
controlling an extruder or other process using an advanced proprietary SMART self-tuning
algorithm. The input is user configurable to be 350
⏲
Strain Gage, high-level voltage or high level
current. The voltage or current inputs are compatible with many process transmitter combinations.
Input and output groups are selected via internal jumpers, with the appropriate range selected via
the keypad. Thus the need to make numerous selections within the instrument is minimized. In
addition to this flexibility, 24 VDC transmitter power supply is a standard feature of the ATC770.
Three fully programmable alarms and an analog retransmission output are also included as part of
the standard ATC770 package.
Five groups of configuration parameters are available from the keyboard, and are protected by three
levels of user definable software locks. (A sixth group of read-only parameters can also be viewed)
In the programming mode the lower display will show the parameter being displayed, and the upper
display will show its value. In the operating mode, the upper display will show the process variable,
and the lower display offers the choice of displaying setpoint, deviation from setpoint, output %,
RPM or peak. In addition, a red LED bargraph presents an analog representation of the main input,
as well as indication of the alarm setpoints.
WARNING NOTE: The user should be aware that if this equipment is used in a manner not
consistent with the specifications and instructions in this manual, the protection provided by the
equipment might be impaired.
1.1
P
RODUCT
C
ODES
Model
Second Input
Options
Power
Code Description
Code Description
Code Voltage
0 Not Present
2 Auxiliary Power supply
3 100-240 VAC
ATC770
& retransmission output
(switching)
1 Analog, remote
3 RS-485 and 4 digital inputs
5 24 VAC/VDC
setpoint
(switching)
2.
S
PECIFICATIONS
2.0
M
ECHANICAL
S
PECIFICATIONS
Case: Polycarbonate Black color Self-extinguishing degree VO according to UL 94
Front Panel: Designed and tested for IP65 and NEMA 4X for indoor location
Installation: Panel mounting
Summary of Contents for ATC770
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