West MLC 9000
Loop Controller Module
Each Loop Controller Module (LCM), is an independent PID
controller. Up-to a max of eight LCM’s can be configured for
each Bus Communications Module (BCM). Each LCM contains it’s
own PID processor as well as all input and output connections.
Mixed installations of Single Loop and Four Loop LCM’s are
possible. Each LCM can be removed and replaced (Hot
Swapped) whilst the process is running.
•
•
•
One Independent PID
control loop per module
RaPID fuzzy logic control
•
100ms Scan Time
•
•
Fully user configurable
via Software
Hot Swap with auto loop
configuration
Dual and Triple outputs
available
Technical Data
Process Input
Function
Thermocouple
RTD
DC Linear
Measuring Accuracy
Input Sample Rate
Sensor Break Detection
Redundant Thermocouple
Heater Break Alarm
Function
Heater Current Input
Outputs
Relay Outputs
SSR Drive Outputs
Linear Output
Environmental
Specifications
Supply voltage
Ambient Temperature
Storage
Relative Humidity
Dimensions
Mounting
One loop temperature or DC process input. Type and scale user selectable
B,N,J,R,K,S,L,T Spans from –240 to + 1759°C (-400 to +3198°F) dependant on T/C type
3-wire PT100 -199.9°C to +800.3°C (-327.3°F-1472.5.3°F)
0-20mA, 4-20mA, 0-50mV, 10-50mV, 0-5V, 1-5V, 0-10V, 2-10V. Scaleable –32000 to +32000
DC = + 0.1% of span + 1 LSD. RTD = + 0.1% of span, +0.3°C. Thermocouple = + 0.1%
of span, +1°C for CJC, +0.3°C for 0.1°C resolution ranges, or 1°C for 1° resolution ranges
10Hz (100msec)
Break detected within two seconds. Control O/Ps turn off (0% power). All alarms activate
(except Heater Break Alarm). Redundant T/C version switches to 2nd input within 2 seconds
C231 variant only. Automatically switches to backup Thermocouple when primary probe fails
Optional. Compares heater current to nominal. Alarms for High/Low current or S/C output
0 to 50mA, Sinusoidal rms, from Current Transformer. Scaleable 0.1 to 100A AC
Contact Type: single pole double throw (SPDT). Rating: 2A resistive @120/240VAC
Lifetime: >500,000 operations at rated voltage/current
Drive Capability: 12VDC nominal (10VDC minimum), at up to 20mA
Isolation: Isolated from process input and relay outputs. Not isolated from each other,
other similar outputs or linear outputs in the same system
Only available on 3 O/P models. Resolution: 8 bits in 250msec, (10 bits in 1 second typical)
Accuracy + 0.25% (mA into 250 ohm load, V into 2Kohm load). Degrading linearly to +0.5%
for increasing burden to maximum drive capability (500 ohm).
Powered by BCM within its operating condition
0°C to 55°C (32°F to 131°F)
-20°C to 80°C (-4°F to 176°F)
30% to 90% non condensing (operation and storage)
Width 22mm, Height 100mm, Depth 120mm. Weight 0.15kg
DIN rail mounting via supplied interconnect module
MLC9000 Single Loop LCM Spec Sheet
Isuue 3 9/01
SSR1 (+) 15
SSR2 (+) 13
SSR1 (-) 14
SSR3/LIN (-) 10
SSR3/LIN (+) 11
SSR2 (-) 12
RLY 1 (N/C) 9
RLY 2 (N/C) 6
SSR Drive & Linear Outputs
RLY 1 (N/O) 7
RLY 1 (COM) 8
RLY 3 (N/C) 3
RLY 2 (N/O) 4
RLY 2 (COM) 5
Outputs
RLY 3 (N/O) 1
RLY 3 (COM) 2
Relay Outputs
See Manual
TC1
TC2
For Redundant T/C
variant only:
mA
RTD TC V/mV
19
18
17
16
Inputs
27 Heater Current 2
26 Heater Current 1
16
+
17
18
19
+
All relay contacts: 2A resistive 120 - 240V AC
Use copper conductors (except on T/C inputs)
Heater Current (optional)
Process Input
Connecting to the LCM
Interconnect Module
A
B
LCM Mounting Details
Order Codes
1 Process input with 2 Outputs
Input type selectable as RTD, Thermocouple or DC (mV, Volts or mA)
Both outputs independently selectable as Relay or SSR
1 Process input with 3 outputs
Process input type selectable as RTD, Thermocouple or DC (mV, Volts or mA)
Outputs 1 & 2 independently selectable as either Relay or SSR
Output 3 selectable as Relay, DC pulse for SSR or DC linear (Volts or mA)
1 Process input, 1 heater current input with 3 outputs
Process input type selectable as RTD, Thermocouple or DC (mV, Volts or mA)
Outputs 1 & 2 independently selectable as either Relay or SSR
Output 3 selectable as Relay, DC pulse for SSR or DC linear (Volts or mA)
2 Thermocouple inputs (1 plus 1 redundant), 1 heater current input with 3 outputs
Input type Thermocouple with redundant Thermocouple input
Outputs 1 & 2 independently selectable as either Relay or SSR
Output 3 selectable as Relay, DC pulse for SSR or DC linear (Volts or mA)
MLC 9000-C120
MLC 9000-C130
MLC 9000-C230
MLC 9000-C231
In accordance with our policy of continuous improvement, we reserve the right to change specifications from those shown in this document.
http://instserv.com
Toledo, OH area:
10100 Royalton Rd.
Cleveland, OH 44133 USA
Tel: (440) 237-3200 • Fax: (440) 237-1744
417 Tomahawk Dr.
Maumee, OH 43537
Tel: (419) 893-3330 • Fax: (419) 893-2151