Dynatronix LT1200X SERIES User manual

Smart LT Manual Dynatronix, Inc.
198-0853-02 Rev F Page 1 of 126
OPERATING MANUAL
FOR
LT1200X SERIES
POWER SUPPLY
LT1200X MODELS WITH SMART INTERFACE.

Page 2 of 126 198-0853-02 Rev F
Table Of Contents
1. INTRODUCTION........................................................................................................................................................................ 6
1.1. TWO YEAR NEW PRODUCT WARRANTY....................................................................................................................... 6
1.2. CONTACT INFORMATION ......................................................................................................................................................... 7
2. SAFETY PRECAUTIONS.......................................................................................................................................................... 8
3. FUNCTIONAL OVERVIEW.................................................................................................................................................... 10
4. PRODUCT SPECIFICATIONS ............................................................................................................................................... 12
5. INSTALLATION INSTRUCTIONS........................................................................................................................................ 15
5.1. POWER INPUT ........................................................................................................................................................................ 15
5.1.1. Input Power Requirements............................................................................................................................................ 15
5.1.2. Input Power Connection ............................................................................................................................................... 15
5.2. MOUNTING ............................................................................................................................................................................ 15
5.3. OUTPUT POWER CONNECTIONS............................................................................................................................................. 16
5.4. INHIBIT SIGNAL CONNECTION ............................................................................................................................................... 16
5.5. SERIAL HOST PORT CONNECTIONS........................................................................................................................................ 16
5.6. ANALOG CARD CONNECTIONS (OPTIONAL 138-0471-XX CARD) ......................................................................................... 17
6. OPERATING PROCEDURES ................................................................................................................................................. 21
6.1. FRONT PANEL CONTROLS...................................................................................................................................................... 21
6.1.1. Displays ........................................................................................................................................................................ 21
6.1.2. Encoder Functionality .................................................................................................................................................. 21
6.1.3. Voltage Indicator.......................................................................................................................................................... 22
6.1.4. Current (Amps) Indicator ............................................................................................................................................. 22
6.1.5. Operate / Standby Switch.............................................................................................................................................. 22
6.1.6. Remote / Local Switch................................................................................................................................................... 23
6.1.7. Inhibit Lamp.................................................................................................................................................................. 23
6.1.8. Fault Lamp.................................................................................................................................................................... 23
6.1.9. Over Temperature Lamp............................................................................................................................................... 23
6.2. MENU OVERVIEW.................................................................................................................................................................. 25
6.2.1. Menu Organization....................................................................................................................................................... 25
6.2.2. Menu Access ................................................................................................................................................................. 28
6.2.3. Menu Navigation........................................................................................................................................................... 28
6.3. UNIT CONFIGURATION........................................................................................................................................................... 29
6.3.1. Totalizer Configuration ................................................................................................................................................ 29
6.3.2. Host Port Configuration ............................................................................................................................................... 31
6.3.3. Remote Control Configuration...................................................................................................................................... 32
6.3.4. Power On Configuration............................................................................................................................................... 33
6.3.5. Power Fail Alarm Configuration.................................................................................................................................. 34
6.3.6. Remote Operate/Standby Control (Digital Input)......................................................................................................... 35

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6.3.7. Front Panel Button Lock Outs ...................................................................................................................................... 37
6.3.8. Hardware Options Configuration................................................................................................................................. 38
6.3.9. Changing the Unit Configuration Password................................................................................................................. 38
6.3.10. Setting Unit Defaults................................................................................................................................................... 39
6.4. CYCLE CONTROL SETTINGS................................................................................................................................................... 40
6.4.1. Manual Cycle Control................................................................................................................................................... 40
6.4.2. Timed Cycle Control (RTC or ATC) ............................................................................................................................. 41
6.4.3. Tolerance Settings......................................................................................................................................................... 43
6.5. ERROR MESSAGES................................................................................................................................................................. 44
6.5.1. Error Message Display................................................................................................................................................. 44
6.5.2. Clearing Error Codes ................................................................................................................................................... 45
6.6. RUN SCREENS........................................................................................................................................................................ 46
6.6.1. Meters Run Screen........................................................................................................................................................ 47
6.6.2. Totalizer Run Screen..................................................................................................................................................... 47
6.6.3. Cycle Run Screen.......................................................................................................................................................... 48
6.6.4. Diagnostics Run Screen................................................................................................................................................ 48
6.7. CURRENT AND VOLTAGE SETTINGS....................................................................................................................................... 49
6.7.1. Voltage Setting Adjustment........................................................................................................................................... 49
6.7.2. Current Setting Adjustment........................................................................................................................................... 49
6.8. SETTING ADJUSTMENT AND REGULATION MODES ................................................................................................................ 50
6.8.1. Setting Adjustment (while viewing the setting) ............................................................................................................. 50
6.8.2. Setting Adjustment (while viewing the output value) .................................................................................................... 50
6.8.3. Current Regulation ....................................................................................................................................................... 50
6.8.4. Voltage Regulation ....................................................................................................................................................... 50
6.8.5. Current Regulation with Voltage Limit (crossover)...................................................................................................... 51
6.8.6. Voltage Regulation with Current Limit (crossover)...................................................................................................... 51
6.9. CYCLE PAUSE/RESUME USING THE OPER/STBY SWITCH .................................................................................................... 51
7. REMOTE HOST CONTROL................................................................................................................................................... 53
7.1. OVERVIEW............................................................................................................................................................................. 53
7.2. HOST PORT COMMUNICATIONS SETTINGS............................................................................................................................. 53
7.3. HOST PORT CONNECTIONS .................................................................................................................................................... 53
7.4. HOST PORT PROTOCOL.......................................................................................................................................................... 53
8. REMOTE OPERATE/STANDBY CONTROL....................................................................................................................... 54
9. REMOTE ANALOG CONTROL (OPTION) ......................................................................................................................... 55
9.1. REMOTE ANALOG READ BACK.............................................................................................................................................. 55
9.1.1. Analog Output Scaling.................................................................................................................................................. 55
9.2. REMOTE ANALOG SETTING CONTROL................................................................................................................................... 56
9.2.1. Analog Input Scaling .................................................................................................................................................... 56
9.3. REMOTE OPERATE/STANDBY FOR ANALOG CONTROL .......................................................................................................... 56

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10. CALIBRATION PROCEDURE............................................................................................................................................. 57
10.1. OVERVIEW........................................................................................................................................................................... 57
10.1.1. Equipment................................................................................................................................................................... 57
10.1.2. Calibration Summary.................................................................................................................................................. 59
10.1.3. Restoring the default calibration values..................................................................................................................... 61
10.2. CALIBRATION STEPS............................................................................................................................................................ 62
10.2.1. Current Output and Read Back Calibration............................................................................................................... 62
10.2.2. Voltage Output and Read Back Calibration ............................................................................................................... 64
10.2.3. Analog Calibration (Optional).................................................................................................................................... 66
11. OPTIONAL FEATURES AND CONTROLS........................................................................................................................ 70
11.1. ANALOG CONTROL CARD.................................................................................................................................................... 70
12. MAINTENANCE ..................................................................................................................................................................... 70
12.1. CLEANING ........................................................................................................................................................................... 70
12.2. FILTER REPLACEMENT (IF EQUIPPED).................................................................................................................................. 70
12.3. COOLING FAN REPLACEMENT ............................................................................................................................................. 70
APPENDIX A: MENU TREE....................................................................................................................................................... 72
A.1 MENU TREE FORMAT............................................................................................................................................................. 73
A.2 POWER ON/OFF SEQUENCES.................................................................................................................................................. 74
A.2.1 Power On in Standby..................................................................................................................................................... 74
A.2.2 Power On Resume Cycle ............................................................................................................................................... 75
A.3 CYCLE PAUSE/RESUME.......................................................................................................................................................... 76
A.4 DISPLAY SELECT MENU......................................................................................................................................................... 77
A.5 UNIT SETUP MENU ................................................................................................................................................................ 78
A.5.1 Cycle Setup Menu.......................................................................................................................................................... 79
A.5.2 Tolerance Setup Menu................................................................................................................................................... 80
A.5.3 Error Handling Setup Menu.......................................................................................................................................... 81
A.6 UNIT CONFIGURATION MENU................................................................................................................................................ 82
A.6.1 Totalizer Configuration Menu....................................................................................................................................... 83
A.6.2 Host Port Configuration Menu...................................................................................................................................... 84
A.6.3 Remote Control Configuration Menu............................................................................................................................ 85
A.6.4 System Configuration Menu .......................................................................................................................................... 86
A.6.5 Calibrate Configuration Menu...................................................................................................................................... 93
APPENDIX B: HOST PORT PROTOCOL ................................................................................................................................ 98
B.1.1 Host Protocol Version Information ............................................................................................................................... 98
B.1.2 Command List................................................................................................................................................................ 98
B.1.3 Command Format.......................................................................................................................................................... 99
B.1.4 Formatting Rules........................................................................................................................................................... 99
B.1.5 Unit Addressing (@AA.a)............................................................................................................................................ 100
B.1.6 Communications Settings (factory default) –RS485................................................................................................... 101
B.1.7 CRC Calculation ......................................................................................................................................................... 102

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B.1.8 ACK Response Command............................................................................................................................................ 103
B.1.9 NAK Response Command............................................................................................................................................ 104
B.1.10 CRC Disable/Enable Command “c” ......................................................................................................................... 106
B.1.11 Delimiter Text Disable/Enable Command “i” .......................................................................................................... 107
B.1.12 Setup Command “s”: ................................................................................................................................................ 108
B.1.13 State Command “a”:................................................................................................................................................. 110
B.1.14 Readings Command “d”: .......................................................................................................................................... 112
B.1.15 Error Status Command “m”: .................................................................................................................................... 114
B.1.16 Error History Command “h”:................................................................................................................................... 115
B.1.17 User Settings Command “t”: .................................................................................................................................... 116
B.1.18 Unit Info Command “u”: .......................................................................................................................................... 119
APPENDIX C: ERROR CODES................................................................................................................................................ 121
REVISION HISTORY................................................................................................................................................................. 126

Page 6 of 126 198-0853-02 Rev F
1. Introduction
1.1. TWO YEAR NEW PRODUCT WARRANTY
DYNATRONIX, INC., hereby warrants to the purchaser that all new products sold are guaranteed against defects in
materials or manufacture for two years after shipment. DYNATRONIX, INC., expressly reserves the right to offer an
extended warranty at its sole discretion. Such express warranty shall not be deemed effective unless expressly
authorized by DYNATRONIX, INC., personnel. DYNATRONIX, INC., at its sole discretion, will repair or replace any
defective products that are returned in accordance within the time period proscribed by this warranty.
All products for repair or examination must be returned to DYNATRONIX, INC., prepaid. The defective product, as
repaired or replaced, requires the issuance of a Return Material Authorization Number (“RMA”) from DYNATRONIX,
INC., personnel prior to acceptance for repair or replacement by DYNATRONIX, INC. An RMA will be issued upon
determination by DYNATRONIX, INC., personnel that the defective product requires factory repair. The customer
assumes all shipment expenses of the returned product to and from DYNATRONIX, INC., within the warranty period.
DYNATRONIX, INC.’s liability, under this warranty, shall in any event not exceed the original purchase price of the
product. To make a claim under this warranty, it is the responsibility of the purchaser to immediately contact
DYNATRONIX, INC., and provide proof of the product’s model, part number, input and output voltage and serial
number. DYNATRONIX, Inc., will then determine whether the product remains under warranty.
This warranty DOES NOT COVER failures caused by any of the following:
1. Misuse, negligence or accident;
2. Alterations made by individuals or parties not directly employed by DYNATRONIX, INC.
This warranty DOES NOT EXTEND to commercial sub-assemblies that are guaranteed by a manufacturer’s warranty.
This warranty becomes effective upon the date the product is shipped. In the event that a product no longer covered
by the NEW PRODUCT WARRANTY is sent for repair, the provisions of the REPAIR WARRANTY as detailed below
govern.
DYNATRONIX, INC., EXPRESSLY DISCLAIMS ALL OTHER WARRANTIES, INCLUDING, WITHOUT LIMITATION,
ALL EXPRESS WARRANTIES, THE IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE AND
THE IMPLIED WARRANTY OF MERCHANTABILITY. THERE ARE NO WARRANTIES WHICH EXTEND BEYOND
THE DESCRIPTION ON THE FACE HEREOF.
REPAIR WARRANTY
DYNATRONIX, INC., hereby warrants to the purchaser that products previously purchased as new from
DYNATRONIX, INC., and returned to DYNATRONIX, INC., for repair or replacement be hereby governed by the
provisions of the REPAIR WARRANTY. DYNATRONIX, INC., expressly reserves the right to extend the REPAIR
WARRANTY to products not purchased from DYNATRONIX, INC., at its sole discretion. The REPAIR WARRANTY
shall exclude all products not purchased from DYNATRONIX, INC., unless expressly authorized by DYNATRONIX,
INC., personnel.
DYNATRONIX, INC., guarantees that all repairs be free from defects for ninety (90) days after return shipment to
purchaser. Product failures not related to repairs done by DYNATRONIX, INC., shall not be covered by the REPAIR
WARRANTY. DYNATRONIX, INC., further warrants that repair investigations that fail to identify product defects shall
be guaranteed for a ninety (90) day period after return shipment to customer. In the event that the product fails within
the stated ninety (90) day period after the inspection, DYNATRONIX, INC., agrees to assume the in-out freight costs
for subsequent returns of the product, experiencing the complained of problem, for an additional ninety (90) day
period. Effective Date: January 1, 2006

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1.2. Contact Information
Contact Information
Corporate Headquarters
Dynatronix, Inc
462 Griffin Boulevard
Amery, WI 54001 USA
Telephone: [phone]
FAX: [phone]
Toll-Free USA: [phone]
www.dynatronix.com
Customer Support
Dynatronix, Inc.
462 Griffin Boulevard
Amery, WI 54001 USA
Phone [phone]
Fax [phone]
Toll-Free USA: [phone]
[email protected]
www.dynatronix.com

Page 8 of 126 198-0853-02 Rev F
2. Safety Precautions
Before proceeding any further through this manual, this section should be read thoroughly to
protect yourself and your equipment.
1. To properly operate this power supply, only electric cords with a 3-prong grounded system
are to be used.
2. The electric cord providing power to the machine should be plugged in only to a grounded
outlet that complies with U.L. and/or OSHA safety requirements, or local regulations.
3. If necessary to work inside the cabinet, remember to remove AC power before opening any
panels. Not doing so may endanger yourself and your equipment. The means of
disconnecting the power supply is either the removal of the detachable power supply cord
from the power inlet or power receptacle or both. If the power cord is direct connected to
the AC source as well as the power supply, turn off the local safety or power panel branch
breaker which provides AC to the power supply. Follow your lock out / tag out procedures
to ensure that power is not unexpectedly applied while servicing.
4. This unit contains no user serviceable parts. All repairs or modifications to this unit must be
done at the Dynatronix factory, or at an authorized Dynatronix Service Center, or by a
qualified service technician. See the Table of Contents section for a list of authorized
service centers in the USA and Europe.
5. If necessary to work inside of cabinet with power on DO NOT wear metal objects on hands
or wrists because of the various DC and AC voltages present.
6. If the equipment is used in a manner other than mentioned in this manual, the protection
provided by this equipment may be impaired.
C A U T I O N
TO REDUCE THE RISK OF ELECTRIC
SHOCK, UNIT MUST BE CONNECTED
TO EARTH GROUND.
REMOVE POWER BEFORE
OPENING PANELS.
SHOCK. UNIT MUST BE CONNECTED
TO EARTH GROUND.
REMOVE POWER BEFORE
OPENING PANELS.

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7. This symbol indicates a protective earth connection.
8. This symbol means to consult the product manual for additional information.
9. This label indicates where high AC or DC voltages are located inside of the unit. Be aware
of these locations if power is needed for any work being done inside of unit. Not doing so
may endanger yourself and your equipment.
10.This label indicates where components or surfaces are operating at temperatures which
might cause injury either directly (burn) or indirectly (involuntarily moving body into another
danger). This label is used most often on the output transistor heatsinks.
!

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11.If this power supply weighs more than 40lb / 18kg (see Section 4 - Specifications), it must
be lifted by two persons. Always use proper lifting technique.
12.Use of this product for purposes other than those specified in this manual is not
recommended. Use for other purposes may give unexpected results or cause damage to
the power supply and/or the system it is being used in.
3. Functional Overview
The LT1200X series plating power supply is a compact, high power unit that offers a wide range of
features for the plating industry. It has universal power input with power factor correction. The
power supply has a sealed design with a fan cooled heat sink tunnel. The unit is packaged in a
316 stainless steel ½ rack sized enclosure.
The LT comes with a Smart user interface. The user can set and monitor the voltage and current
and there are indicators for errors and status of the unit. The settings are changed using multi-
turn encoders. The encoders have pushbutton switches for changing the meter display from the
readings to the settings for visual adjustment of the set point. By using the proper settings the
power supply can be set to run in current, voltage or crossover regulation modes.
The LT Smart user interface contains menus that allow various features to be configured and
provide for display of information regarding cycle status.
The LT supports the following features
Manual Cycle Control
Real Time Cycle Control (RTC)
Amp Time Cycle Control (ATC)
User Configurable Totalizer
Over Temperature Warning (before shut down)
Over Temperature Shut down
Fan speed based on internal temperature
Configurable Power Up Mode (always in standby, or in last mode)
Remote operate/standby control (isolated digital input)
Host port (RS485)
Optional analog control (4-20mA, 05V, 0-10V)
Digital Calibration
Alarms and diagnostics

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Tolerance
Power failure
Over temperature warning
Over temperature shut down
Fan diagnostics
Various System diagnostics

Page 12 of 126 198-0853-02 Rev F
4. Product Specifications
PRODUCT SPECIFICATIONS
INPUT POWER
Universal input, 100-240VAC, 50-60Hz, single phase.
**LT12-100 input: 200-240VAC, 50-60Hz, single phase.
INPUT PROTECTION
Main: The input is protected by two internal fuses
(Labeled F1 & F2) located on printed circuit board
assembly 138-0512-00.
MODEL
MAXIMUM INPUT
CURRENT AT
115VAC INPUT
FUSE RATING
LT6-5
0.4A
MDA1 –1Amp, 250VAC
LT6-10
1A
MDA2 –2Amp, 250VAC
LT6-25
2A
MDA3 –3Amp, 250VAC
LT6-50
4A
MDA5 –5Amp, 250VAC
LT6-75
5.5A
MDA8 –8Amp, 250VAC
LT6-100
7.5A
MDA10 - 10Amp, 250VAC
LT9-10
1.5A
MDA2 - 2Amp, 250VAC
LT9-25
3A
MDA5 - 5Amp, 250VAC
LT9-50
5.5A
MDA8 - 8Amp, 250VAC
LT9-75
7.5A
MDA10 - 10Amp, 250VAC
LT9-100
11A
MDA15 - 15Amp, 250VAC
LT12-10
1.5A
MDA2 –2Amp, 250VAC
LT12-25
3.5A
MDA5 –5Amp, 250VAC
LT12-50
7A
MDA10 - 10Amp, 250VAC
LT12-75
11A
MDA15 - 15Amp, 250VAC
**LT12-100
7.5A
** AT 200VAC INPUT
MDA10 - 10Amp, 250VAC
LT18-10
2.5A
MDA3 –3Amp, 250VAC
LT18-25
5.5A
MDA8 –8Amp, 250VAC
LT18-50
11A
MDA15 - 15Amp, 250VAC
LT18-60
12A
MDA15 - 15Amp, 250VAC
LT24-10
3A
MDA4 –5Amp, 250VAC
LT24-25
7A
MDA10 - 10Amp, 250VAC
LT24-50
14.5A
MDA15 - 20Amp, 250VAC
LT48-10
6A
MDA8 –8Amp, 250VAC
LT48-25
14.5A
MDA20 - 20Amp, 250VAC

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OUTPUT RATING
MODEL
OUTPUT RATING
LT6-5
0-6V, 0-5A, 30W
LT6-10
0-6V, 0-10A, 60W
LT6-25
0-6V, 0-25A, 150W
LT6-50
0-6V, 0-50A, 300W
LT6-75
0-6V, 0-75A, 450W
LT6-100
0-6V, 0-100A, 600W
LT9-10
0-9V, 0-10A, 90W
LT9-25
0-9V, 0-25A, 225W
LT9-50
0-9V, 0-50A, 450W
LT9-75
0-9V, 0-75A, 675W
LT9-100
0-9V, 0-100A, 900W
LT12-10
0-12V, 0-10A, 120W
LT12-25
0-12V, 0-25A, 300W
LT12-50
0-12V, 0-50A, 600W
LT12-75
0-12V, 0-75A, 900W
LT12-100
0-12V, 0-100A, 1200W
LT18-10
0-18V, 0-10A, 180W
LT18-25
0-18V, 0-25A, 450W
LT18-50
0-18V, 0-50A, 900W
LT18-60
0-18V, 0-60A, 1080W
LT24-10
0-24V, 0-10A, 240W
LT24-25
0-24V, 0-25A, 600W
LT24-50
0-24V, 0-50A, 1200W
LT48-10
0-48V, 0-10A, 480W
LT48-25
0-48V, 0-25A, 1200W

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OUTPUT PROTECTION
The internal controller will not accept commands that
will exceed the output rating of the power supply.
CONTROLS
Smart LT Front panel (display, encoders, switches).
Host Port (RS485)
Optional Analog Interface.
ENVIRONMENTAL CONDITIONS
INDOOR USE ONLY
Operating temperature: 0 - 40C
Non-condensing humidity conditions 15-90% RH
Storage temperature: -20 - 85C
LOAD REGULATION
Current: : ±0.5% of maximum current rating for the
power supply from 10% -100% load
Voltage: : ±0.5% of maximum voltage rating for the
power supply from 10% - 100% load
LINE REGULATION
For line conditions as listed in 4.1
Current: : ±0.5% of maximum current rating for the
power supply
Voltage: : ±0.5% of maximum voltage rating for the
power supply
RIPPLE
120mVrms maximum throughout operating range
COOLING
Variable fan speed forced air cooling: in through front,
out through rear. Allow 2 inches (51mm) minimum
clearance on front and rear of unit.
ENCLOSURE
Half-rack enclosure, 316 Stainless Steel
SIZE
3.43” (87.1mm)H x 8.45” (214.6mm)W x 16” (406mm)D
(18” (457mm)D including controls and connectors)
WEIGHT
Approximately 17lbs (7.7kg).

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5. Installation Instructions
5.1. Power Input
5.1.1. Input Power Requirements
The input power and output capacity of each rectifier is specified on the equipment serial tag
located on the back of the unit. The power supply has a universal input, 100-240VAC, 50-60Hz,
single phase. Derate maximum output power to 1000W for input voltages less than 100Vac.
5.1.2. Input Power Connection
Make sure the Main Power Switch is in the OFF (0) position. Plug the female end of the power
cord into the back of the power supply. Connect the male end of the power cord* to the correct
supply in accordance with U.L. and/or OSHA specifications.
*If power supply does not come equipped with a male plug, use Interpower NEMA 6-20 (250Vac,
20A) P/N: 88030180 or equivalent.
5.2. Mounting
Place the LT1200X Series power supply on a shelf capable of accepting a 1/2 rack mount
package.
Cooling is front to rear unless power supply is equipped with a rear filter cooling is from back to
front. Do not block airflow to the unit. Leave at least 2 inches (5cm) in front of and behind the
power supply for adequate ventilation. Place the unit in an area which has adequate ventilation to
prevent condensation. Do not spray liquids on or inside power supply. Keeping units away from
corrosive plumes will help prolong the life of your capital investment.
Host Port
Inhibit Connector
Power Inlet
Option Card Connector
Fan Cover & Rear Air Vent
(Air filter if equipped)
Output Bus-Bars

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5.3. Output Power Connections
Located at the rear of the LT1200X Series are two output bus-bar connectors which are used to
connect to the bath. Make sure the connections to the bus-bars are tight to reduce heating.
Loose connections to the bus-bars will damage the power supply.
5.4. Inhibit Signal Connection
When the inhibit input is active the power supply output is disabled and the front panel “inhibit”
LED illuminates. The inhibit signal can be used for a safety interlock or as a remote
operate/standby control. The inhibit signal can be a switch closure or a voltage signal input
depending on how the inhibit terminals are wired (see the diagram below). If the inhibit signal is
not used pins 1 and 3 must be connected with a jumper wire to enable power supply operation.
For details on how to use the inhibit input for remote operate/standby control see 6.3.6.Remote
Operate/Standby Control (Digital Input) and 8.0.Remote Operate/Standby Control.
5.5. Serial Host Port Connections
The serial host port can be used to monitor and/or control the LT power supply using the ASCII
Host Protocol (See 7.0.Remote Host Control). The serial host port supports a half duplex RS485
interface. Multiple LT power supplies can be connected to a single RS485 bus (multi-drop). Each
device on the RS485 bus is individually addressed using the ASCII Host Protocol. If an RS232
device (such as a PC) will be connected to the LT host port then an RS232 to RS485 converter
module will be required (not included).
1
5
9
6
RS485 Connections
1 nc
2 nc
3 nc
4 RS485 Data A
5 nc
6 nc
7 nc
8 RS485 Common
9 RS485 Data B
DB9 Female Connector
on Back of Unit
1
2
3
Open to Inhibit/Standby
Inhibit Connector
Signals
1Inhibit/Standby
w/ Open
2 Inhibit/Standby
w/ Close
3 Common
1
2
3
Close to Inhibit/Standby
External Common
External 5-15VDC
Close to Inhibit
Connection
Method
Inhibit Signal Connection Diagram
Open to Inhibit
Connection
Method
Inhibit Connector
Jumper 1 to 3

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5.6. Analog Card Connections (Optional 138-0471-XX Card)
Rectifiers which have optional analog control will be equipped with the 138-0471-xx card and
require customer supplied wiring. See wiring diagram figures below for connection information.
The following give a description of the control and readback signals on the 12 pin terminal strip.
VOLTAGE CONTROL (VC)
Control of the power supply output voltage can be achieved by connecting the appropriate signal
to pins 6 (+) and 5 (-).
CURRENT CONTROL (CC)
Control of the power supply output current can be achieved by connecting the appropriate signal
to pins 8 (+) and 7 (-).
VOLTAGE READBACK (VRB)
Monitoring of the power supply output voltage can be achieved by connecting the appropriate
sensing circuitry to pins 9 (+) and 10 (-).
CURRENT READBACK (CRB)
Monitoring of the power supply output current can be achieved by connecting the appropriate
sensing circuitry to pins 11 (+) and 12 (-).
Pin 3 can be used for a DC COMMON connection.
Pin 1 can be used as a connection point for the cabling shields.
NOTE: To reduce the possibility of electrical noise interfering with the proper operation of the
control system, use shielded twisted pair for all wiring between the analog controller and the
power supply. Belden™ 8761 or equivalent cable type is recommended.
NOTE: The DC COM (pin 3) is used to connect the power supply’s DC common to the controller's
DC common. The shielding for the voltage & current control lines should be earth grounded at the
controller and should be cut-off at the power supply. The shielding for the voltage & current
readback lines should be earth grounded at the power supply (pin 1 - SHIELD) and cut-off at the
controller. See diagrams below.
NOTE: When using 4-20mA control, the controller’s input channels must be isolated from each
other. It is recommended that isolated receivers (ex. OPTO 22 AD3T or equivalent) be used with
the curr rd out and volt rb out transmitter channels. These transmitter channels are self powered.
The receiver inputs and transmitter outputs are ground isolated from the power supply’s
DC common and are isolated from earth ground as well. However, be aware that both
input channels and both output channels of the AI board, do share a common signal
ground. In other words, there is no isolation from channel to channel or receiver inputs
to transmitter outputs except that provided by the differential inputs. A common ground
signal from the Remote controller is required.
NOTE: MAXIMUM LOOP RESISTANCE THAT CAN BE IN SERIES BETWEEN THE (+) AND (-)
OF THE CURRENT OR VOLTAGE READBACK IS 400 OHMS

Page 18 of 126 198-0853-02 Rev F
Units with Current and Voltage Control and Readback should be wired as shown below:
Typical Analog Control Wiring (Current and Voltage Control)
NOTE: The analog control card has control of the output current and voltage if it is enabled by
pressing the RMT/LCL button so that the RMT indicator comes on.
NOTE: The unit must be in operate, OPER indicator on, for the remote analog control inputs to
control the power supply output.
NOTE: If the analog control card is not controlling the output when in Remote mode, use the
procedure in section 6.3.3.Remote Control Configuration to verify that the source of the voltage
and current settings while in remote control mode are set to the options card.
Connector Signals
1 shield gnd
2 no connection
3 dc common
4 +12 (50ma)
5 -volt cntl in
6 +volt cntl in
7 -curr cntl in
8 +curr cntl in
9 +volt rb out
10 -volt rb out
11 + curr rb out
12 - curr rb out
1
12
6
Analog Control Connector
IN
OUT
Controller (Voltage)
4-20ma, 0-5V or 0-10V
+
-
+
-
Earth
Gnd
IN
OUT
Controller (Current)
4-20ma, 0-5V or 0-10V
+
-
+
-
Earth
Gnd
Shields
Shields
Shields

Smart LT Manual Dynatronix, Inc.
198-0853-02 Rev F Page 19 of 126
Units using only Current Control and Readback should be wired as shown below. The voltage
level is set to maximum using a resistor.
Typical Analog Control Wiring (Current Control Only)
Connector Signals
1 shield gnd
2 no connection
3 dc common
4 +12 (50ma)
5 -volt cntl in
6 +volt cntl in
7 -curr cntl in
8 +curr cntl in
9+volt rb out
10 -volt rb out
11 + curr rb out
12 - curr rb out
1
12
6
Analog Control Connector
IN
OUT
Controller (Current)
4-20ma, 0-5V or 0-10V
+
-
+
-
Earth
Gnd
Shields
Shields
Approximately
560 Ohm
Resistor, ½ Watt
Jumper
Alternative to the resistor: The voltage can be
adjusted to the desired value in Local control.
Then the voltage setting source can be changed to
host using the procedure in section 6.3.3. Finally
when the unit is changed to Remote control with
the RMT switch, the voltage setting will be retained
as long as there is not a host to change it.

Page 20 of 126 198-0853-02 Rev F
Units using Only Voltage Control and Readback should be wired as shown below. The current
level is set to maximum using a resistor.
Typical Analog Control Wiring (Voltage Control Only)
Connector Signals
1 shield gnd
2 no connection
3 dc common
4 +12 (50ma)
5 -volt cntl in
6 +volt cntl in
7 -curr cntl in
8 +curr cntl in
9 +volt rb out
10 -volt rb out
11 + curr rb out
12 - curr rb out
1
12
6
Analog Control Connector
IN
OUT
Controller (Voltage)
4-20ma, 0-5V or 0-10V
+
-
+
-
Earth
Gnd
Shields
Shields
Approximately
560 Ohm
Resistor, ½ Watt
Jumper
Alternative to the resistor:
The current can be adjusted to
the desired value in Local
control. Then the current setting
source can be changed to host
using the procedure in section
6.3.3. Finally when the unit is
changed to Remote control with
the RMT switch, the current
setting will be retained as long
as there is not a host to change
it.