Download Output Triac Electrical Function Module

Metasys Network Technical Manual 636
Function Modules Section
Technical Bulletin
Issue Date 0793
Output Triac Electrical Function Module
Introduction
3
●
Definition
3
●
Application
4
●
Capabilities
4
●
Theory of Operation
5
●
Specifications
6
Installation Procedures
7
●
General Information
7
●
Lighting Control
7
●
Physical Installation
9
Commissioning Procedures
11
●
Physical Verification
11
●
Software Verification
11
Troubleshooting Procedures
©
Page
13
●
Troubleshooting Chart
13
●
Ordering Information
15
1993 Johnson Controls, Inc.
Order No. 636-057
1
2 Function Module—Output Triac Electrical Function Module
Introduction
The Output Triac Electrical (OTE) Function Module is an interface
between the DCM and field devices. This function module provides
increment/decrement control or pulsed control of one of two outputs. The
OTE Function Module features:
●
three wire increment/decrement control of externally sourced 24 VAC
signals
●
Auto/Manual (A-M) switch to enable/disable DCM control
●
two momentary pushbutton switches (+ and -) for manual intervention
●
feedback indication of the Auto/Manual switch setting to the DCM
The OTE 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.
Output FMs
DCMs
I
A
M
O TE 101
ote101
+
Definition
Figure 1: OTE Function Module Locations
Function Module—Output Triac Electrical Function Module
3
Application
The OTE Function Module is typically used to control 24 VAC motor
driven devices such as the VA-8050 and M25.
Capabilities
Table 1: OTE Function Module Capabilities
Capability
Description
Purpose
Input from DCM
DCM inputs a digital command.
Allows DCM to provide automatic
control of outputs.
Auto/Manual Toggle Switch,
and Two Momentary
Pushbutton Switches
Switch selects one of:
- Auto—DCM/Triac control of
outputs.
- Manual—DCM/Triac control
disabled.
Allows for manual override of
DCM control for special
situations.
Pushbutton switches
increment/decrement output in
both Auto and Manual modes.
Allows for local/manual control,
even if the DCM is not present.
Power on Reset
At low power or after power up,
outputs are open circuit.
Provides controlled restart.
Output to Field
Module outputs 3-wire
increase/decrease control signal
using external 24 VAC output
signals.
Provides incremental control
signals for motor driven
actuators.
4 Function Module—Output Triac Electrical Function Module
Figure 2 is a function diagram of the Function Module.
Theory of
Operation
OTE
(A)
A
+
C o n t ro l
E le c tr o n ic s
Field
Device
C OM
B
24VAC *
I
D CM
A
M
(B)
ote 101
*2 4 V A C sou rce
m a y b e co n tain e d in
th e fie ld d e vice o r
su pp lie d se pa ra tely.
Figure 2: OTE Function Diagram
Under DCM control, the process is:
●
●
●
The DCM provides control signals to the OTE.
The control electronics drive two independent Triacs according to the
control signals from the DCM.
When energized, each Triac controls externally sourced 24 VAC at up
to 2 amps.
Manual controls are:
●
an Auto/Manual switch (A-M) that can disable the DCM control of the
OTE Triacs. The status of this switch is reported back to the DCM at
all times.
●
a momentary pushbutton (+) that closes the same circuit as Triac A
●
a momentary pushbutton (-) that closes the same circuit as Triac B
The two pushbuttons operate with the Auto/Manual switch in either
position.
Function Module—Output Triac Electrical Function Module
5
Specifications
Table 2: OTE Function Module Specifications
Category
Specifications For Configurations
Product Code Number
FM-OTE101
Output Range
Two states (ON/OFF with respect to Common) on each of two leads
Output Limits
Maximum output current: 2 amps
Maximum surge output current: 20 amps for one power cycle,
non-repetitive
Minimum load current: 70 mA
Output voltage drop: 1.6 V
Output Protection
TRIAC outputs fused at 2.5 amp with slow blow, non-field replaceable
fuses
Leakage (OFF state)
5 mA
Response Time
Within one-half of the external 24 VAC supply’s cycle period
(Zero crossing detection ensures that Triac turns on at or near zero
voltage, and turns off at or near zero current.)
Source Power
Power is from the PWR in the NCU/NEU. Load requires external Class 2,
24 VAC supply.
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 Module—Output Triac Electrical Function Module
Installation Procedures
When installing and connecting function modules:
General
Information
●
●
Lighting Control
follow NEC and local codes
observe maximums as specified in the specification table and in these
installation guidelines
Figure 3 diagrams the wiring for 24 VAC lighting control applications
using the OTE Function Module.
TBF
W ir e G a u g e
a n d Le n g t h
Per Local C odes
OTE
A
D CM
(A)
1
COM
3
2 - c o il
L ig h tin g
R e la y
+
On
C o n t ro l
E le c tr o n ic s
Off
24VAC
I
B
A
M
2
(B)
C o n n e c tio n to
D C M c o m p le te d
th ro u g h in te rn a l
c o n n e cto r o n e n d
o f fu n c tio n m o d u le .
T B F in left b a y
o f N C U /N E U
3
6
2
5
1
4
T B F in rig h t ba y
o f N C U /N E U
1
4
2
5
3
6
Strip wire and insert in side face of TBF. Use
set screw in front face to secure.
otew ire
Figure 3: Wiring for Lighting Relay Application
Function Module—Output Triac Electrical Function Module
7
Incremental Control
Figure 4 diagrams the wiring for typical incremental control applications
using the OTE Function Module. In this example, the field device is a
VA-8050 valve.
W ir e G a u g e
a n d Le n g t h
Per Local C odes
TBF
V A -8 0 5 0
V a lv e
OTE
A
D CM
(A)
1
COM
3
Increment*
Up
Com
Dwn
+
C o n t ro l
E le c tr o n ic s
24VAC
I
B
A
M
2
(B)
C o n n e c tio n to
D C M c o m p le te d
th ro u g h in te rn a l
c o n n e cto r o n e n d
o f fu n c tio n m o d u le .
T B F in left b a y
o f N C U /N E U
3
6
2
5
1
4
Decrement*
*Reverse these
wires to change
valve action.
T B F in rig h t ba y
o f N C U /N E U
1
4
2
5
3
6
S trip w ire a nd inse rt in sid e fa ce of T B F . U se
se t scre w in fro nt face to se cu re.
Figure 4: Wiring for Typical Application
8 Function Module—Output Triac Electrical Function Module
otew ire
Physical
Installation
Assumptions
The following procedure for the physical installation of the Output Triac
Electrical (OTE) Function Module assumes:
●
Panel (NCU or NEU) is installed.
●
Connections to field devices are complete.
●
You have engineering drawings defining details for the installation.
●
Procedure
You are familiar with Metasys Network terminology, and the location
and operation of power switches.
For each OTE 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 latch.
4. Insert the module in the appropriate slot.
5. Close latch, locking function module in place.
Function Module—Output Triac Electrical Function Module
9
10 Function Module—Output Triac Electrical Function Module
Commissioning Procedures
Physical
Verification
Assumptions
Procedure
The following procedure for the physical verification of the OTE Function
Module assumes:
●
Physical installation at the NCU/NEU panel is complete.
●
Power is available at the panel power supply, and at the field device.
For each OTE Function Module in the network, perform the following
steps.
1. Power up the appropriate DCM power supply.
2. Press switch (+) on the OTE. Verify that appropriate field device
increments in the appropriate direction as defined in the engineering
drawings.
3. Press switch (-) on the OTE. Verify that the field device increments in
the opposite direction.
Software
Verification
Assumptions
The following procedure for the software verification of the
OTE Function Module assumes:
●
●
●
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 OTE Function Module in the network, perform the following
steps.
1. Select the System summary that includes this OTE object.
2. Set Auto/Manual switch on the OTE 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 Module—Output Triac Electrical Function Module
11
12 Function Module—Output Triac Electrical Function Module
Troubleshooting Procedures
Troubleshooting
Chart
Use the diagram in Figure 5 (next page) as a troubleshooting guide. It
applies for failures between point objects and field devices connected
through an OTE Function Module.
Function Module—Output Triac Electrical Function Module
13
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
Is the
external power
supply OK?
No
Repair or replace field
device if JCI is responsible.
Yes
Using a
DVM, check FM
output. Is it
OK?
No
Yes
U sing a
D V M , che ck in pu t to
fie ld de vice.
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
Troubleshoot
connections
and wiring.
Yes
Repair or replace field
device if JCI is responsible.
oteflow
Figure 5: OTE Troubleshooting
14 Function Module—Output Triac Electrical Function Module
Ordering
Information
Table 3: Ordering Information
Description
OTE Function Module
Product Code Number
FM-OTE101-0
Function Module—Output Triac Electrical Function Module
15
Notes
Controls Group
507 E. Michigan Street
P.O. Box 423
Milwaukee, WI 53201
16 Function Module—Output Triac Electrical Function Module
FAN 636
Metasys Network Technical Manual
Revision Date 0793
Printed in U.S.A.