Partlow MIC 2000 User manual

Form 2844
Edition 11
© August 1993
Updated March 1997
Installation, Wiring, Operation Manual
MIC 2000
Brand

PAGE 2
nformation in this installation, wiring, and operation
manual is subject to change without notice. One
manual is provided with each instrument at the time of
shipment. Extra copies are available at the price
published on the front cover.
Copyright © August 1993, all rights reserved. No part of
this publication may be reproduced, transmitted, tran-
scribed or stored in aretrieval system, or translated into
any language in any form by any means without the writ-
ten permission of the factory.
This is the Eleventh Edition of the 1/4 DIN Controller
manual. It was written and produced entirely on a desk-
top-publishing system. Disk versions are available by
written request to the factory - Advertising and Publica-
tions Department.
We are glad you decided to open this manual. It is
written so that you can take full advantage of the features
of your new process controller.
Itisstronglyrecommended that factory equipped applications incorporate a high or
lowlimitprotectivedevicewhichwillshutdowntheequipmentatapresetprocess
conditioninordertoprecludepossibledamagetopropertyorproducts.
I
NOTE

PAGE 3
Table of Contents
SECTION 1 - GENERAL Page Number
1.1 Product Description 5
SECTION 2 -
INSTALLATION & WIRING
2.1 Installation and Wiring 7
2.2 Preparation for Wiring 8
2.3 Input Connections 13
2.4 Output Connections 19
SECTION 3 -
CONFIGURATION & OPERATION
3.1 Configuration and Operation 22
3.2 Operation Summary 22
3.3 Configuration Summary 24
3.4 Tune Mode Operation 34
SECTION 4 - CONTROL CAPABILITY
4.1 Control Capability 37
4.2 Control Responses 37
4.3 Direct/Reverse Operation of Control Outputs 37
4.4 On-Off Control/Latched On-Off 38
4.5 Time Proportioning Control 38
4.6 Current Proportioning Control 38
4.7 Position Proportioning Control 38
4.8 Dual Output Control 40
4.9 Manual Operation of Proportional Outputs 41
4.10 Automatic Transfer Function 41
4.11 Setpoint Adjustments 42
SECTION 5 - SERVICE
5.1 Service 44
5.2 Calibration 44
5.3 Test Mode 48
5.4 Troubleshooting and diagnostics 52
APPENDICES
A - Board Layout - Jumper Positioning
Figure A-1 Power Supply Board 59
Figure A-2 Processor Board 60
Figure A-3 Option Board 61, 62
B - Glossary of terms 63
C - Model Number Hardware Matrix Details 66
D - Specifications 67
E - Software Record/Reference Sheet 70
Warranty Inside back cover

PAGE 4
FIGURES & TABLES
Figure 1-1 Controller Display Illustration 5
Figure 2-1 Panel Opening Sizes and Installation 7
Figure 2-2 Noise Suppression 9
Figure 2-3 Noise Suppression 10
Figure 2-4 Wiring Label 13
Figure 2-5 AC Power 13
Figure 2-6 Thermocouple Input 14
Figure 2-7 RTD Input 14
Figure 2-8 Volt, mV, mADC Input 15
Figure 2-9A 24VDC Transmitter Power Supply 16
Figure 2-9B 24VDC Power Supply 16
Figure 2-10 Remote Setpoint Input 17
Figure 2-11 Remote Digital Communications 18
Figure 2-12 Relay Output 19
Figure 2-13 SSR Driver Output 20
Figure 2-14 mADC Output 21
Figure 2-15 Position Proportioning Output 21
Figure 4-1 Proportional Bandwidth effect on Output 39
Figure 4-2 Dual Proportional Outputs 40
Figure 4-3 Setpoint Ramp Rate Example 42
Figure 4-4 Re-transmission Example 43
Figure 4-5 Setpoint Re-transmission Example 43
Table 3-1 Enable Mode Configuration Procedures 24
Table 3-2 Program Mode Configuration Procedures 28
Table 3-3 Tune Mode Configuration Procedures 33
Table 5-1 Calibration Procedures 45
Table 5-2 Test Procedures and Description 49
FLOW CHARTS
Flow - Calibration 44
Flow - Enable Mode 25
Flow - Program Mode 26
Flow - Setpoint 42
Flow - Standby Mode 41
Flow - Test Mode 48
Flow - Tune Mode 32

PAGE 5
Product Description 1.1
1.1.1 GENERAL
This instrument is a microprocessor based single loop controller capable of measuring,
displaying and controlling temperature, pressure, flow, and level from a variety of inputs.
Control functions, alarm settings and other parameters are easily entered through the front
keypad. All user's data can be protected from unauthorized changes with it’s ENABLE MODE
security system. Battery back-up protects against data loss during AC power outages.
The input is user configurable to directly connect to either thermocouple, RTD, mVDC, VDC
or mADC inputs. Thermocouple and RTD linearization, as well as thermocouple cold junction
compensation is performed automatically. The sensor input is isolated . The instrument can
operate on either 115VAC or 230VAC power at 50/60Hz. It is housed in an extruded alumi-
num enclosure suitable for panel mounting. It may be surface mounted using an optional
adaptor.
FIGURE 1-1
1.1.2 DISPLAYS
Each instrument is provided with a digital display and status indicators as shown in Figure
1-1. The digital display is programmable to show the process variable only, process variable
and setpoint, deviation from setpoint only, deviation and setpoint, or setpoint continuously.
Status indication is as shown (Figure 1-1). Display resolution is programmable for 0 to 3
decimal places depending upon the input type selected.
°C
°F
U
S.P.
MAN OUT1 OUT2 ALRM

PAGE 6
1.1.3 CONTROL
The instrument can be programmed for on-off, time proportioning, current proportioning, or
position proportioning control implementations depending on the model number. A second
control output is an available option. Proportional control implementations are provided with
fully programmable separate PID parameters.
1.1.4 ALARM
Alarm indication is standard on all instruments. Alarm type may be set as PROCESS DIRECT
or REVERSE (High or Low), DEVIATION DIRECT or REVERSE (Above or Below setpoint), or
DEVIATION BAND TYPE (Closed or Open within the band). Alarm status is indicated by
LED. An alarm output can be provided by assigning any output(s) SPST relay(s) or SSR
Driver(s) to the alarm.
1.1.5 EXTENDED FEATURES SOFTWARE
EA Software Features
Fast Scan Provides an optional faster scan rate of 3 scans per second.
Normal scan is one scan per second.
Process Rounding Provides rounding of the process value displayed to reduce display
fluctuation. For example, the displayed value can be rounded to
the nearest 5 (display -5, 0, 5, 10, etc.). This is for display only and
does not affect the control action.
Extended Current The current outputs available can be extended to include 0-20mA
Output Ranges and 0-5VDC (with the appropriate shunt resistor), rather than the
standard 4-20mA and 1-5VDC outputs.
Process/Setpoint The process or setpoint value can be scaled over any desired
Value Retransmit range and retransmitted using one of the current outputs. (This
Capability precludes the use of the output for control).
Percent Output Provides a relay actuation based upon a proportional output being
Relay Actuation above or below a specified value.
Contact Closure Sensing This feature provides the following action: When a contact closure
for SP=PV is sensed, the setpoint will be set equal to the current process
value. This is only done on the transition from open to closed, and
not continuously while the switch is closed.
EB Software Features
Setpoint Ramp Provides a limitation on how fast the process value will ramp to setpoint by
Rate limiting the rate of change of an internal setpoint used for control versus
the setpoint the operator specifies.

PAGE 7
Installation and Wiring 2.1
Prior to proceeding with installation, verify the AC power input required by the instrument. AC
power input is either 115 VAC or 230 VAC and is specified in the model number and on the
wiring label affixed to the instrument housing. See Figure 2-4 (page 13) for a wiring label
description.
230 VAC models may be converted to 115 VAC operation by the user, by changing the
position of jumpers soldered on the Power Supply Board, see Appendix A-1 (page 59) for
details.
Electrical code requirements and safety standards should be observed and installation
performed by qualified personnel.
The electronic components of the instrument may be removed from the housing during
installation. To remove the components, loosen the locking screw located in the lower center
of the instrument’s front panel. Pull the entire instrument straight out of the
housing. During re-installation, the vertically mounted circuit boards should be properly
aligned in the housing. Be sure that the instrument is installed in the original housing. This
can be verified by matching the serial number on the unit to the serial number on the housing.
(Serial numbers are located on the inside of the housing enclosure and on the label on the
underside of the front panel)
. This will insure that each instrument is accurate to its published
specifications. The ambient compensator on the rear of the housing enclosure is calibrated to
the electronics of the instrument at the factory.
Recommended panel opening sizes are illustrated below (Figure 2-1). After the opening is
properly cut, insert the instrument housing into the panel opening. Insert the two panhead
screws provided, through the holes in the mounting bracket into the holes in the rear of the
instrument as shown in Figure 2-1. Firmly tighten the screws. Instruments are shipped
standard for panel mounting. To surface mount, an adaptor is required and should be
specified when ordering. For installation in wash-down areas, a watertight cover is available.
FIGURE 2-1 PANEL OPENING SIZES AND INSTALLATION
90.4
(3.560)
90.4
(3.560)
PANEL
CUTOUT
SIZE
96.0 (3.78)
96.0
(3.78)
92 + or - 0.8
(3.622 + or - .031)
4.8 (.188) MAX PANEL THICKNESS
All dimensions shown
in mm and inches. Inches
shown in ( ).
92+ or-.8
(3.622
+ or-.031)
165.9 (6.53)
146.8 (5.78)
Side View
Top View
Mounting Bracket
Mounting scre
w
Panel

PAGE 8
Preparation for Wiring 2.2
2.2.1 WIRING GUIDELINES
Electrical noise is a phenomenon typical of industrial environments. The following are
guidelines that must be followed to minimize the effect of noise upon any instrumentation.
2.2.1.1 INSTALLATION CONSIDERATIONS
Listed below are some of the common sources of electrical noise in the industrial environ-
ment:
• Ignition Transformers
• Arc Welders
• Mechanical contact relay(s)
* Solenoids
Before using any instrument near the devices listed, the instructions below should be fol-
lowed:
1. If the instrument is to be mounted in the same panel as any of the listed devices, separate
them by the largest distance possible. For maximum electrical noise reduction, the noise
generating devices should be mounted in a separate enclosure.
2. If possible, eliminate mechanical contact relay(s) and replace with solid state relays. If a
mechanical relay being powered by an instrument output device cannot be replaced, a
solid state relay can be used to isolate the instrument.
3. A separate isolation transformer to feed only instrumentation should be considered. The
transformer can isolate the instrument from noise found on the AC power input.
4. If the instrument is being installed on existing equipment, the wiring in the area should be
checked to insure that good wiring practices have been followed.
2.2.1.2 AC POWER WIRING
Earth Ground
The instrument includes noise suppression components that require an earth ground connec-
tion to function. To verify that a good earth ground is being attached, make a resistance
check from the instrument chassis to the nearest metal water pipe or proven earth ground.
This reading should not exceed 100 ohms. Use a 12 gauge (or heavier) insulated stranded
wire.
Neutral (For 115VAC)
It is good practice to assure that the AC neutral is at or near ground potential. To verify this, a
voltmeter check between neutral and ground should be done. On the AC range, the reading
should not be more than 50 millivolts. If it is greater than this amount, the secondary of this
AC transformer supplying the instrument should be checked by an electrician. A proper
neutral will help ensure maximum performance from the instrument.
2.2.1.3 WIRE ISOLATION
Four voltage levels of input and output wiring may be used with the unit:
• Analog input or output (i.e. thermocouple, RTD, VDC, mVDC or mADC)
• SPST Relays
• SSR driver outputs
• AC power
The only wires that should be run together are those of the same category. If they need to be
run parallel with any of the other lines, maintain a minimum 6 inch space between the wires.
If wires must cross each other, do so at 90 degrees. This will minimize the contact with each
other and reduces "cross talk" "Cross talk" is due to the EMF (electro Magnetic Flux) emitted
by a wire as current passes through it. This EMF can be picked up by other wires running in
the same bundle or conduit.

PAGE 9
In applications where a High Voltage Transformer is used, (i.e. ignition systems) the secon-
dary of the transformer should be isolated from all other cables.
This instrument has been designed to operate in noisy environments, however, in some cases
even with proper wiring it may be necessary to suppress the noise at its source.
2.2.1.4 USE OF SHIELDED CABLE
Shielded cable helps eliminate electrical noise being induced on the wires. All analog signals
should be run with shielded cable. Connection lead length should be kept as short as
possible, keeping the wires protected by the shielding. The shield should be grounded at one
end only. The preferred grounding location is the sensor, transmitter or transducer.
2.2.1.5 NOISE SUPPRESSION AT THE SOURCE
Usually when good wiring practices are followed no further noise protection is necessary.
Sometimes in severe electrical environments, the amount of noise is so great that it has to be
suppressed at the source. Many manufacturers of relays, contactors, etc. supply "surge
suppressors" which mount on the noise source.
For those devices that do not have surge suppressors supplied, RC (resistance-capacitance)
networks and/or MOV (metal oxide varistors) may be added.
Inductive Coils - MOV's are recommended for transient suppression in inductive coils con-
nected in parallel and as close a possible to the coil. See Figure 2-2. Additional protection
may be provided by adding an RC network across the MOV.
FIGURE 2-2
(Continued on next page)
0.5
mfd
1000V
220
ohms
115V 1/4W
230V 1W
A.C.
MOV Inductive
Load

PAGE 10
Contacts - Arcing may occur across contacts when the contact opens and closes. This
results in electrical noise as well as damage to the contacts. Connecting a RC network
properly sized can eliminate this arc.
For circuits up to 3 amps, a combination of a 47 ohm resistor and 0.1 microfarad capacitor
(1000 volts) is recommended. For circuits from 3 to 5 amps, connect 2 of these in parallel.
See Figure 2-3.
FIGURE 2-3
2.2.2 SENSOR PLACEMENT (Thermocouple or RTD)
Two wire RTD's should be used only with lead lengths less than 10 feet.
If the temperature probe is to be subjected to corrosive or abrasive conditions, it should be
protected by the appropriate thermowell. The probe should be positioned to reflect true
process temperature:
In liquid media - the most agitated area.
In air - the best circulated area
A.C.
MOV
RInductive
Load
C

PAGE 11
THERMOCOUPLE LEAD RESISTANCE
Thermocouple lead length can affect instrument since the size (gauge) and the length of the
wire affect lead resistance.
To determine the temperature error resulting from the lead length resistance, use the following
equation:
Terr = TLe * L where; TLe = value from appropriate table below
L = length of leadwire in thousands of feet.
TABLE 1
Temperature error in °C per 1000 feet of Leadwire
AWG Thermocouple Type:
No. J K T R S E B N C
10 .34 .85 .38 1.02 1.06 .58 7.00 1.47 1.26
12 .54 1.34 .61 1.65 1.65 .91 11.00 2.34 2.03
14 .87 2.15 .97 2.67 2.65 1.46 17.50 3.72 3.19
16 1.37 3.38 1.54 4.15 4.18 2.30 27.75 5.91 5.05
18 2.22 5.50 2.50 6.76 6.82 3.73 44.25 9.40 8.13
20 3.57 8.62 3.92 10.80 10.88 5.89 70.50 14.94 12.91
24 8.78 21.91 9.91 27.16 27.29 14.83 178.25 37.80 32.64
TABLE 2
Temperature Error in °F per 1000 feet of Leadwire
AWG Thermocouple Type:
No.JKTRSEBNC
10 .61 1.54 .69 1.84 1.91 1.04 12.60 2.65 2.27
12 .97 2.41 1.09 2.97 2.96 1.64 19.80 4.21 3.66
14 1.57 3.86 1.75 4.81 4.76 2.63 31.50 6.69 5.74
16 2.47 6.09 2.77 7.47 7.52 4.14 49.95 10.64 9.10
18 4.00 9.90 4.50 12.17 12.28 6.72 79.95 10.64 9.10
20 6.43 15.51 7.06 19.43 19.59 10.61 126.90 26.89 23.24
24 15.80 39.44 17.83 48.89 49.13 26.70 320.85 68.03 58.75
Example:
A 1/4 Din unit is to be located in a control room 660 feet away from the process. Using 16
AWG, type J thermocouple, how much error is induced?
Terr = TLe * L
TLe = 2.47 (°F/1000 ft) from Table 2
Terr = 2.47 (°F/1000 ft) * 660 ft
Terr = 1.6 °F

PAGE 12
RTD LEAD RESISTANCE
RTD lead length can affect instrument accuracy, since the size (gauge) and length of the wire
affect lead resistance.
To determine the temperature error resulting from the lead length resistance, use the following
equation:
Terr = TLe * L where; TLe = value from Table 3 if 3 wire RTD or Table 4 is 2 wire RTD
L = length of lead wire in thousands of feet
TABLE 3 3 Wire RTD
AWG No. Error °C Error °F
10 ±0.04 ±0.07
12 ±0.07 ±0.11
14 ±0.10 ±0.18
16 ±0.16 ±0.29
18 ±0.26 ±0.46
20 ±0.41 ±0.73
24 ±0.65 ±1.17
TABLE 4 2 Wire RTD
AWG No. Error °C Error °F
10 ±5.32 ±9.31
12 ±9.31 ±14.6
14 ±13.3 ±23.9
16 ±21.3 ±38.6
18 ±34.6 ±61.2
20 ±54.5 ±97.1
24 ±86.5 ±155.6
Example:
An application uses 2000 feet of 18 AWG copper lead wire for a 3 wire RTD sensor. What is
the worst case error due to this leadwire length?
Terr = TLe * L
TLe = ±.46 (°F/1000 ft) from Table 3
Terr = ±.46 (°F/1000 ft) * 2000 ft
Terr = ±0.92°F

PAGE 13
1
2
3
4
D
C
B
A
RELAY A
115
230 VAC
SIGNAL +
CJC
SIGNAL -
MADE IN U.S.A.GROUND
INPUT RATINGS:
115/230 VAC 50/60 HZ 15VA MAX
RELAY OUTPUT RATINGS:
115VAC 5.0A RESISTIVE
230VAC 2.5A RESISTIVE
230VAC 1/8 HP
115/230VAC 250VA
MAXIMUM AMBIENT : 55°C
5
6
8
7
E
F
G
H
RETURN
OUT1
4-20mA +
OUT2
4-20mA +
REMOTE
SETPT +
SERIAL A
SERIAL B
POS.PROP.
WIPER
POS.PROP.
HIGH
RELAY C
RELAY B
FIGURE 2-4 WIRING LABEL
Input Connections 2.3
In general, all wiring connections are made to the instrument after it is installed. Avoid
electrical shock. AC power wiring must not be connected to the source distribution
panel until all wiring connection procedures are completed.
2.3.1 INPUT CONNECTIONS
FIGURE 2-5
AC Power
Connect 115 VAC hot and neutral to terminals B and A respectively as illustrated below.
Connect 230 VAC as described below. Connect Earth ground to the ground screw as shown.
115 VAC INSTRUMENT VOLTAGE
L1
L2 B
A
GROUND
.5 AMP*
FUSE
Rear View
*Supplied by customer
230 VAC INSTRUMENT VOLTAGE
B
A
GROUND
L1
L2
.25 AMP*
FUSE
Rear View
*Supplied by the customer

PAGE 14
FIGURE 2-6
Thermocouple (T/C) Input
Make thermocouple connections as illustrated below. Connect the positive leg of the thermo-
couple to terminal 3, and the negative to terminal 1. For industrial environments with com-
paratively high electrical noise levels, shielded thermocouples and extension wire are recom-
mended. Be sure that the input conditioning jumpers are properly positioned for a thermo-
couple input. See Appendix A-2 (page 60) and A-3 (page 61, 62).
FIGURE 2-7
RTD Input
Make RTD connections as illustrated below. For a three wire RTD, connect the resistive leg
of the RTD to terminal 3, and the common legs to terminal 1 and 5. For a two wire RTD,
connect one wire to terminal 1 and the other wire to terminal 3 as shown below. A jumper
wire supplied by the customer must be installed between terminals 1 and 5. Be sure that the
input conditioning jumpers are properly positioned for an RTD input. See Appendix A-2 (page
60) and A-3 (page 61, 62).
8
7
6
5
4
3
2
1
THERMOCOUPLE INPUT
+
-
300 OHMS
MAXIMUM
LEAD
Rear view
8
7
6
5
4
3
2
1
2 WIRE RTD INPUT
100 OHM*
PLATINUM
JUMPER*
Rear View
*Supplied by customer
100 OHM*
PLATINUM
8
7
6
5
4
3
2
1
3 WIRE RTD INPUT
Rear View
*Supplied by the customer

PAGE 15
FIGURE 2-8
Volt, mV, mADC Input
Make volt, millivolt and milliamp connections as shown below. Terminal 3 is positive and
terminal 1 is negative. Milliamp input requires a 250 ohm shunt resistor (supplied with the
instrument) installed across the input terminals and by configuring the instrument for either 0
to 5 or 1 to 5 VDC input. If desired, milliamp DC input can be facilitated by installing an
optional 2.5 ohm resistor across the input terminals and configuring the instrument for either 0
to 50 or 10 to 50 mVDC. Be sure that the input conditioning jumpers are properly positioned
for the input type selected. See Appendix A-2 (page 60) and A-3 (page 61, 62).
NOTE: Fault detection is not functional for 0-20mA inputs.
NOTE: Fault detection is not functional for 0-20mA inputs.
8
7
6
5
4
3
2
1
MILLIAMP DC INPUT
+
-
MILLIAMP DC
SOURCE
2.5 OHM SHUNT
RESISTER
REQUIRED
Rear View
Shielded Twisted
Pair
8
7
6
5
4
3
2
1
MILLIAMP DC INPUT
+
-
MILLIAMP DC
SOURCE
250 OHM SHUNT
RESISTER
REQUIRED
Rear View
Shielded Twisted
Pair
8
7
6
5
4
3
2
1
MILLIVOLT DC INPUT
+
-
MILLIVOLT DC
SOURCE
50 MILLIVOLT DC
MAXIMUM
Rear View
Shielded Twisted
Pair
8
7
6
5
4
3
2
1
VOLT DC INPUT
+
-
VOLT DC
SOURCE
5 VOLT DC
MAXIMUM
Rear View
Shielded Twisted
Pair

PAGE 16
FIGURE 2-9A
24 Volt Transmitter Power Supply (XP Option)
Make connections as shown below. Terminal 3 is positive (+) and terminal 1 is negative (-)/
Be sure the input conditioning jumpers are properly positioned for the input type selected.
See Figure A-2 Processor Board, page 60, and Figure A-3 Option Board, page 61 or 62. Note
the 250 ohm shunt resistor is not required.
FIGURE 2-9B
24 Volt Power Supply (XA Option)
Make connections as shown below. Terminal G is positive (+) and terminal H is negative (-).
Be sure the input conditioning jumpers are properly positioned. See Figure A-2 Processor
Board, page 60 and Figure A-3 Option Board, page 61 or 62.
+3
2
-1
+
-
Two Wire
Transmitter
H -
G +
24VDC

PAGE 17
FIGURE 2-10
Remote Setpoint Input - VDC, mADC and Potentiometer
Input connections are illustrated below. Terminal 8 is positive and terminal 5 is negative.
The remote setpoint input can be configured for either 0 to 5VDC or 1 to 5 VDC input. Make
sure that the voltage input matches the voltage configuration selected in the Program mode.
For mA inputs, a 250 ohm shunt resistor must be installed between terminals 5 and 8. For
remote setpoint using a potentiometer, JU1 on options board must be in MM/PP (see page
61, 62).
CURRENT DC REMOTE SETPOINT
8
7
6
5
4
3
2
1
-
+
MILLIAMP
SETPOINT
SIGNAL
250 OHM
SHUNT
RESISTER
NEEDED
Rear View
Shielded Twisted Pair
VOLT DC REMOTE SETPOINT
VOLT DC
SETPOINT
SIGNAL
5VDC
MAXIMUM
8
7
6
5
4
3
2
1
-
+
Rear View
Shielded Twisted
Pair
POTENTIOMETER
150 ohm to
10 K ohm
8
7
6
5
4
3
2
1
Rear View

PAGE 18
FIGURE 2-11
Remote Digital Communications RS 485 Terminals 7 & 8
If the communications network continues on to other units, connect the shields together, but
not to the instrument. A terminating resistor should be installed at the terminals of the last
instrument in the loop. The shield should be grounded at the computer or the
convertor box, if used. See the Protocol Manual (Form 2878) for more details on the use of
the digital communications option.
8
7
6
5
4
3
2
1
Output 2 cannot be DC Current
FROM HOST
COMPUTER
TO OTHER
INSTRUMENTS
DIGITAL COMMUNICATIONS
CONNECTIONS - TERMINALS 7 & 8

PAGE 19
Output Connections 2.4
FIGURE 2-12
Relay Output
Connections are made to relay A as illustrated below. Connect relay(s) B & C (if present) in
the same manner. Relay contacts are rated at 5 amp Resistive load 115 VAC.
B
A
GROUND
RELAY A
D
C
INPUT
POWER
LOAD
L2
L1
Rear View
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
L2
L1
LOAD
Rear View
RELAY B
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
RELAY C
L2
L1
LOAD
Rear View

PAGE 20
FIGURE 2-13
SSR Driver Output
Connections are made to the solid state relay driver output located in the Relay A position as
shown. The solid state relay driver is a 5 VDC current sink output type. Connect the solid
state relay driver(s) in the Relay B and C position (if present) in the same manner.
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY A)
-
+
SOLID STATE
RELAY
Rear View
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY B)
-
+
SOLID STATE
RELAY
Rear View
B
A
GROUND
D
C
INPUT
POWER
F
E
H
G
SSR DRIVER (RELAY C)
-
+
SOLID STATE
RELAY
Rear View