TECHNICAL SPECIFICATION RFS
|
| Case: |
|
PC/ABS grey |
| Self-extinguishing degree: |
V0 according to UL 746C |
| Front
protection: |
|
IP20 |
| Dimensions: |
|
131 x 117 x 22.5mm |
| Weight: |
|
250g max. |
| Power supply: |
|
switching 24VAC/VDC (±10% of nominal value) |
| Power
consumption: |
6VA |
| Insulation: |
|
reinforced insulation is guaranteed between supply input,
instrument inputs and outputs |
| Common
mode rejection: |
120dB @
50/60Hz |
| Normal mode rejection: |
60dB @ 50/60Hz |
| Installation: |
|
DIN rail
mounting |
| Installation category: |
II |
| EMC/Safety: |
|
CE certified;
compliant with regs 89/336/EEC (harmonized reference standard EN-50081-2 and
EN- 50082-2) and 73/23/EEC e 93/68/EEC (harmonized reference standard EN
61010-1) |
| Sampling time: |
|
250mSec for linear inputs
500mSec for TC or RTD
inputs |
| Accuracy: |
|
±0.2%
f.s.v. @ 25°C with nominal supply voltage |
| Operating temperature: |
0 to +50°C |
| Storage
temperature: |
-20 to
+70°C |
| Humidity: |
|
20% to 85% RH, non-condensing |
| RTD
Input |
|
| Type: |
3-wire Pt100 |
| Calibration: |
|
according to DIN 43760 |
| Measuring current: |
|
130µA |
| Line resistance: |
|
auto-compensation
up to 20 ohms per wire with no measurable error |
| Engineering units: |
|
programmable ºC or ºF |
| Sensor
break: |
indicates break of
sensor or one or more wires; indicates short circuit when sensor resistance
<12 ohms |
| RTD |
Pt100 3-wire
|
| °C |
-200.0/400.0 |
-200/800 |
| °F |
-200.0/400.0 |
-330/1470 |
|
|
| Linear
Inputs |
|
| Scaling: |
programmable from keyboard -2000 to 4000 |
| Decimal point: |
|
programmable to
any position |
| Input |
0-20 mA |
4-20 mA |
0-60 mV |
12-60 mV |
| Impedance |
<5 ohms |
<5 ohms |
>1M ohms |
>1M ohms |
|
|
| Thermocouple Input |
|
| Sensor break: |
|
open circuit sensor break detection |
| Cold
junction compensation: |
automatic
compensation of temperature beween 0 and 50ºC |
| Cold junction compensation error: |
0.1ºC/ºC |
| Input
impedance: |
1M ohms |
| Calibration: |
|
according to IEC 584-1: 1995; DIN 43710-1977 for TC type
L |
|
| Logic Input |
|
|
| Function: |
|
selection of the
operating setpoint (SP or SP2) or of the temporary block of setpoint ramp |
| Type: |
|
dry contact excitation 8V, 8mA |
| Insulation: |
|
functional
insulation |
| Insulation voltage: |
|
50Vrms |
|
| Current Transformer Input |
| Input current: |
|
50mA, 50/60Hz |
| Full scale range: |
|
0-10A, 0-100A (configurable) |
| Resolution: |
|
0-20A:
0.1A
21-100A: 1A |
| Programmable output: |
NO or NC relay control output; Logic level 1 or 0; SSR
control output |
| Minimum period: |
|
On and Off:
400mSec |
| Function: |
|
control output |
| Type: |
non-isolated Logic level 1:
27VDC max. @ 1mA;
14VDC min. @
20mA
Logic level 0: < 0.5V |
| Relay Type |
|
|
| Output 1 |
Function: |
control output |
|
Type: |
SPST |
|
Contact load: |
3A @ 250VAC max. on resistive load |
| Output 2 |
Function: |
control output or
alarm |
|
Type: |
relay with SPST contact |
|
Contact load: |
3A @ 250VAC max.
on resistive load |
| Output 3 |
Function: |
alarm output |
|
Type: |
relay with SPDT
contact |
|
Contact load: |
3A @ 250VAC max. on resistive load |
| Output 4 |
Function: |
group alarm
(common output) |
|
Type: |
open collector |
|
Contact
load: |
20mA max. @
48V |
|
| Control
Action |
|
| Type: |
|
one (heating) or two (heating/cooling) control outputs |
| Output action: |
|
time
proportioning |
| Control action: |
|
ON/OFF PI or PID + SMART |
| Proportional
band: |
|
1.0% to 100.0% of
the input range for one control element;
1.5% to 100.0% of the input range
for two control elements;
Setting PB = 0 causes ON/OFF control |
| Hysteresis: |
|
programmable from 0.1% to 10.0% of the input span |
| Integral time: |
|
programmable from
1 second to 20 minutes (or none) |
| Derivative time: |
|
programmable from 1 second to 10 minutes (or none) |
| Integral offset: |
|
for one control
element (heating), the offset is programmable from 0 to 100% of the output
range; for two control elements (heating/cooling) the offset is programmable
from -100% to +100% of the output range |
| Output 1 cycle time: |
1 second to 200 seconds |
| Manual to Auto: |
|
bumpless |
| Output 2 relative gain: |
Programmable from 0.20 to 1.00 of the proportional band |
| Output 2
cycle time: |
1 second to 200
seconds |
| Overlap/deadband: |
programmable from -20% (deadband) to +50% (overlap) of the
proportional band |
|
| Dual Setpoint Selection |
Two user configurable operation setpoints are selectable
through logic input or the communication interface. For ON/OFF control action,
this provides a method for fast and convenient run-hold switching, either by an
external switch or by a host supervisory system. |
|
| Alarms |
|
|
| Alarm action: |
|
direct or
inverse |
| Alarm functions: |
|
configurable as process, band or deviation alarms |
| Alarm reset: |
|
programmable as
automatic or manual |
| Alarm masking: |
|
configurable as masked or unmasked alarms |
| Hysteresis: |
|
0.1 to 10.0% of
input |
|
| Serial Interface |
|
|
| Type: |
|
isolated RS-485 |
| Protocol: |
|
Modbus
(2-wire) |
| Baud rate: |
|
600 to 19200 BAUD |
| Byte format: |
|
8 bit |
| Parity: |
|
even, odd or none |
| Stop bit: |
|
one |
| Address: |
|
1 to 254 |
| Voltage levels: |
|
according to EIA
comm standard |
| Line loading: |
|
1/4 unit load |
