Red Lion TCU User Manual
Page 84
Valve fail time
: Off to 9999 seconds
Alarm mode
: Dual acting; loss of slidewire feedback signal and valve
fail detection
15.
SECOND ANALOG INPUT
:
Range
: 0-20 mA (Isolated from main input)
Overload
: 100 mA (steady state)
Input Resistance
: 10
W
Voltage drop (@ 20 mA); 0.2 V
Accuracy
: 0.15% of reading
±
10
m
A
±
1 LSD
Scale Range
: -999 to 9999
16.
SERIAL COMMUNICATION
:
Type
: RS485 Multi-point, Balanced Interface
Communication Format
:
Baud Rate
: Programmable from 300 to 9600
Parity
: Programmable for odd, even, or no parity
Frame
: 1 start bit, 7 data bits, 1 or no parity bit, 1 stop bit
Unit Address
: Programmable from 0 to 99, maximum of 32 units per
line
Transmit Delay
: 100 msec minimum, 200 msec maximum
RS485 Common
: Isolated from signal input common
Auto Print Time
: Off to 9999 seconds between print-outs
17.
USER INPUT (Optional)
: Internally pulled up to +5 VDC.
V
IN MAX
=
5.25 VDC; V
IL
=
0.85 V
MAX
;
V
IH
=
3.0 V
MIN
,
Available on all second input (HCM, MVP & ANA) models and on models
with RS485.
Response time
: 100 msec maximum
Functions
: Program Lock.
Integral Action Lock.
Auto/Manual Mode Select
Setpoint Ramp Select
Reset Alarms
Print Request
Local/Remote Setpoint Select
18.
ALARMS (Optional)
:
Hardware
: Plug-in, replaceable output module
Modes
: Absolute high acting
Absolute low acting
Deviation high acting
Deviation low acting
Inside band acting
Heater break.
Valve fail
Second Analog Input monitoring
Reset Action
: Programmable; automatic or latched
Standby Mode
: Programmable; enable or disable
Hysteresis
: Programmable
Probe Break Action
: Upscale
Annunciator
: LED backlight for “AL1”, “AL2”,
(Alarm #2 not available
with cooling output or motorized valve position option.)
19.
ENVIRONMENTAL CONDITIONS
:
Operating Temperature
: 0 to 50°C
Storage Temperature
: -40 to 80°C
Operating and Storage Humidity
: 85% max. relative humidity
(non-condensing) from 0°C to 50°C.
Altitude
: Up to 2000 meters
Vibration according to IEC 68-2-6: Operational 5 to 150 Hz, in X, Y, Z
direction for 1.5 hours, 1 g.
Shock according to IEC 68-2-27: Operational 5 g’s, 11 msec. in 3 directions
Span Drift
(maximum)
: 100 ppm/°C, main input; 150 ppm/°C,
second input
Zero Drift
(maximum)
: 1
m
V/°C, main input; 2
m
A/°C, second input
20.
ISOLATION BREAKDOWN RATINGS
:
All inputs and outputs with respect to AC line
: 2300 V
Analog Output, Second Analog Input, Heater Current Input, or
Slidewire Input with respect to Main Input
: 500 V
76