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Metasys Network Technical Manual 636
Function Modules Section
Technical Bulletin
Issue Date 0194
Output Binary Electrical Function Module
Introduction
Page
3
●
Description
*3
●
Application
4
●
Capabilities
4
●
Theory of Operation
5
●
Specifications
6
Installation Procedures
7
●
General Information
7
●
2-Wire Remote Transducer
8
●
RLM/RMM Relay
9
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Physical Installation
Commissioning Procedures
10
11
●
Physical Verification
11
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Software Verification
11
Troubleshooting Procedures
13
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Troubleshooting Chart
13
●
Ordering Information
15
* Indicates changes since the last printing.
©
1994 Johnson Controls, Inc.
Order No. 636-047
1
2 Function Modules—Output Binary Electrical Function Module
Introduction
The Output Binary Electrical (OBE) Function Module is an interface
between the DCM and field devices. This function module provides
incremental control of a field device. The OBE Function Module features:
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logic for converting DCM digital output into incremental control
signals (+12 VDC)
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Auto/Manual (A-M) switch to enable/disable DCM control
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two momentary pushbutton switches (+ and -) for manual intervention
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feedback indication of the Auto/Manual switch setting to the DCM
The OBE Function Module plugs into any one of the bottom ten slots
associated with the DCM. Figure 1 shows typical function module
locations in the NCU. A five slot panel is pictured.
O u tp ut F M s
DCMs
obe 101
OBE 1 01
Description
Figure 1: OBE Function Module Locations
Function Modules—Output Binary Electrical Function Module
3
Application
Capabilities
The OBE Function Module is typically used for incremental control of
devices. For example:
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an existing V-9012
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DC servo driven actuators
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existing Johnson Controls incremental controlled devices
Table 1: OBE Function Module Capabilities
Capability
Description
Purpose
Input from DCM
DCM inputs a digital command.
Allows DCM to provide automatic
control of outputs.
Auto/Manual Switch and Two
Momentary Pushbutton
Switches
Switch selects one of
- Auto—DCM control of
outputs
- Manual—DCM control
disabled
Pushbutton switches
increment/decrement output in
both Auto and Manual modes.
Allows for manual override of
DCM control for special
situations.
Power on Reset
At low power or after power up,
output goes to zero.
Provides controlled restart.
Output to Field
Module outputs 2-wire polarized
(+12 V/ -12 V) control signal
based on input signal.
Provides incremental control of
field devices.
4 Function Modules—Output Binary Electrical Function Module
Allows for local/manual control,
even if the DCM is not present.
Theory of
Operation
Figure 2 is a functional diagram of the OBE Function Module.
" "
OBE
DCM
Control
Electronics
Manual
Driver
A uto
Field
Device
" "
obe 101
Figure 2: OBE Function Diagram
Under DCM control, the process is:
●
●
●
The DCM provides a signal, which increments or decrements the OBE
output. Output signal is +12, 0, or -12 VDC.
A manually controlled Auto/Manual switch can disable the DCM
control of the OBE output. The status of this switch is reported back
to the DCM.
Two pushbuttons (+ and -) provide manual increment and decrement
control. These pushbuttons are functional in Auto and Manual modes.
This unit will operate in Manual mode without the DCM present. Power
supply must be present.
Function Modules—Output Binary Electrical Function Module
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Specifications
Table 2: OBE Function Module Specifications
Category
Specifications For Configurations
Product Code Number
FM-OBE101
Output Range
3 states: +12, -12, or OFF.
Output Limits
When ON:
Minimum output is 11 V (at 170 mA).
Maximum output is 15 V (open circuit).
Output Protection
Maximum current:
325 mA (current foldback)
500 mA (Output leads (3) fused with non-field replaceable fuses.)
Response Time
Maximum: 5 m/sec
Default Condition
Output = 0 VDC on loss of input power.
Source Power
Power is from the PWR in the NCU/NEU.
Operating Environmental
Requirements
32 to 122°F (0 to 50°C)
10 to 90% noncondensing RH
86°F (30°C) maximum dew point.
Storage/Shipping
Environmental
Requirements
-40 to 158°F (-40 to 70°C)
5 to 95% noncondensing RH
86°F (30°C) maximum dew point
Size
0.85 in. H x 2.6 in. W x 7.0 in. L
(2.2 cm H x 6.6 cm W x 17.8 cm L)
Weight
0.5 lb (0.22 kg)
Agency Compliance
FCC Part 15 Subpart J - Class A, UL 916, CSA C22.2 No. 205
Agency Listings
UL Listed and CSA Certified as part of Metasys®.
6 Function Modules—Output Binary Electrical Function Module
Installation Procedures
General
Information
When installing and connecting function modules:
●
●
follow NEC and local codes
observe maximums as specified in the specification table and in these
installation guidelines
Function Modules—Output Binary Electrical Function Module
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Figure 3 diagrams the wiring for 2-wire remote transducer applications
using the OBE.
2-Wire Remote
Transducer
Table 3: 2-Wire Transducer Applications
TBF Connections
1
2
Field Device
AQ-4102
2
1
EPT-1022
Red
Red/White
Action On Incremental Based
On +12V Signal (+)
Notes
Resistance increases between
term 6 and 7
1
Pneumatic increase
1
V-9010
+
-
Pneumatic increase
V-9012
Red
Black
Pneumatic increase
6
7
Notes:
1. Use potentiometer for feedback of device
position. See diagram at right.
Do not use without feedback. The
motor can burn out if it hits the stops.
" "
OBE
TBF
2 5 0 ft. m a x .
N o. 18 AW G
tw is te d p a ir
1
C o n t ro l
E le c tr o n ic s
DCM
M anual
F ield
D e vice
D riv e r
A u to
2
Optional
6
" "
C o n n e c tio n to D C M
co m p le te d th r o u g h
in te rn a l co n n e cto r
o n e n d o f fu n ctio n
m o d u le .
T B F in le ft b a y
o f N C U /N E U
3
6
2
5
1
4
TBF in right bay
of NCU/NEU
1
4
2
5
3
6
S trip w ire a n d in se rt in sid e face o f T B F. U se
se t scre w in fro nt fa ce to se cu re .
obew ire
Figure 3: Wiring for 2-Wire Remote Transducer Application
8 Function Modules—Output Binary Electrical Function Module
8
Figure 4 diagrams the wiring for the RLM/RMM Relay applications using
the OBE.
RLM/RMM Relay
" "
OBE
TBF
2 5 0 ft . m a x .
No. 18 A W G
tw is te d p a ir
1
DCM
C o n t ro l
E le c tro n ic s
M a nu a l
FT1
FT2
D r iv e r
(2 R M M -1 0 1
o r (1 )
R L M -1 0 1
A uto
2
O p tio n a l
C o n n e c tio n to D C M
co m p le te d th r o u g h
in te rn a l co n n e cto r
o n e n d o f fu n ctio n
m o d u le .
T B F in le ft b a y
o f N C U /N E U
3
6
2
5
1
4
R T B-10n
6
" "
T B F in rig h t b a y
o f N C U /N E U
1
4
2
5
3
6
S trip w ire an d in sert in sid e fa ce o f T B F . U se
se t scre w in fro n t fa ce to se cure .
obew ire
Figure 4: Wiring for RLM/RMM Relay Application
Function Modules—Output Binary Electrical Function Module
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Physical
Installation
Assumptions
The following procedure for the physical installation of the OBE Function
Module assumes:
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Panel (NCU or NEU) is installed.
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Connections to field devices are complete.
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You have engineering drawings defining details for the installation.
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Procedure
You are familiar with Metasys Network terminology, and the location
and operation of power switches.
For each OBE Function Module in the network, perform the following
steps.
1. Set the Auto/Manual switch to Manual.
2. Refer to the engineering drawings, and identify the proper panel and
slot number location for this module.
3. Open the latch.
4. Insert the module in the appropriate slot.
5. Close the latch, locking function module in place.
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Commissioning Procedures
Physical
Verification
Assumptions
The following procedure for the physical verification of the
OBE Function Module assumes:
●
●
Procedure
Physical installation of the PWR101 at the NCU/NEU panel is
complete.
Power is available at the panel power supply, and at the field device.
For each OBE Function Module in the network, perform the following
steps.
1. Power up the appropriate DCM power supply.
2. Press switch (+) on the OBE. Verify that the appropriate device is
activated, as defined in the engineering drawings.
3. Press switch (-) on the OBE. Verify that the appropriate device is
activated and/or that the appropriate device is deactivated as defined in
the engineering drawings.
Software
Verification
Assumptions
The following procedure for the software verification of the
OBE Function Module assumes:
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●
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Procedure
Physical installation at the NCU/NEU panel is complete, including
NCM, DCM, FM, etc.
The operating software for the network has been downloaded to the
NCM controlling the panel.
An Operator Workstation is available.
For each OBE Function Module in the network, perform the following
steps.
1. Select the System summary that includes this OBE object.
2. Set Auto/Manual switch on the OBE to Auto.
3. Adjust the software override command and verify that the object’s
Value attribute (as seen in the summary) matches the actual value for
the field device.
Function Modules—Output Binary Electrical Function Module
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12 Function Modules—Output Binary Electrical Function Module
Troubleshooting Procedures
Troubleshooting
Chart
Use the diagram in Figure 5 as a troubleshooting guide. It applies for
failures between point objects and field devices connected through an
OBE Function Module.
Start
Is the
Summary
containing this object
displaying correct
values?
Yes
Exit
No
Is
Point
object definition
OK?
No
Fix definition.
See Operator Workstation
User's Manual.
Yes
Is DCM
error LED off and
is N2 polling and
responding?
No
Troubleshoot DCM
See DCM 101 Technical
Bulletin.
Yes
Using a
DVM, check FM
output. Is it
OK?
No
Replace FM.
See Ordering Information
ordering information. Refer
to Material Return and
Allowance Program,
Procedure 3C2700
for
information on returning
defective FMs.
for
Yes
Using a
DVM, check input to
field device.
OK?
No
Troubleshoot
connections
and wiring.
Yes
Repair or replace field
device if JCI is responsible.
obeflow
Figure 5: OBE Troubleshooting
Function Modules—Output Binary Electrical Function Module
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Ordering
Information
Table 4: Ordering Information
Description
Product Code Number
OBE Function Module
FM-OBE101-0
14 Function Modules—Output Binary Electrical Function Module
Notes
Function Modules—Output Binary Electrical Function Module
15
Notes
Controls Group
507 E. Michigan Street
P.O. Box 423
Milwaukee, WI 53201
16 Function Modules—Output Binary Electrical Function Module
FAN 636
Metasys Network Technical Manual
Revision Date 0194
Printed in U.S.A.