Woodward Peak 150 User manual

Installation and Operation Manual
Peak®150 Digital Control
for Steam Turbines
8200-008/009/010/011/012/013/014/015/016/017/018/019
9905-857/858/860/861/863/864/866/867
Manual 85565 (Revision C)

WARNING—DANGER OF DEATH OR PERSONAL INJURY
WARNING—FOLLOW INSTRUCTIONS
Read this entire manual and all other publications pertaining to the work to be performed
before installing, operating, or servicing this equipment. Practice all plant and safety
instructions and precautions. Failure to follow instructions can cause personal injury and/or
property damage.
WARNING—OUT-OF-DATE PUBLICATION
This publication may have been revised or updated since this copy was produced. To verify
that you have the latest revision, be sure to check the Woodward website:
www.woodward.com/pubs/current.pdf
The revision level is shown at the bottom of the front cover after the publication number. The
latest version of most publications is available at:
www.woodward.com/publications
If your publication is not there, please contact your customer service representative to get
the latest copy.
WARNING—OVERSPEED PROTECTION
The engine, turbine, or other type of prime mover should be equipped with an overspeed
shutdown device to protect against runaway or damage to the prime mover with possible
personal injury, loss of life, or property damage.
The overspeed shutdown device must be totally independent of the prime mover control
system. An overtemperature or overpressure shutdown device may also be needed for
safety, as appropriate.
WARNING—PROPER USE
Any unauthorized modifications to or use of this equipment outside its specified
mechanical, electrical, or other operating limits may cause personal injury and/or property
damage, including damage to the equipment. Any such unauthorized modifications: (i)
constitute "misuse" and/or "negligence" within the meaning of the product warranty
thereby excluding warranty coverage for any resulting damage, and (ii) invalidate product
certifications or listings.
CAUTION—POSSIBLE DAMAGE TO EQUIPMENT OR PROPERTY
CAUTION—BATTERY CHARGING
To prevent damage to a control system that uses an alternator or battery-charging device, make
sure the charging device is turned off before disconnecting the battery from the system.
CAUTION—ELECTROSTATIC DISCHARGE
Electronic controls contain static-sensitive parts. Observe the following precautions to
prevent damage to these parts.
• Discharge body static before handling the control (with power to the control turned off,
contact a grounded surface and maintain contact while handling the control).
• Avoid all plastic, vinyl, and Styrofoam (except antistatic versions) around printed circuit
boards.
• Do not touch the components or conductors on a printed circuit board with your hands
or with conductive devices.
IMPORTANT DEFINITIONS
• A WARNING indicates a potentially hazardous situation which, if not avoided, could result in
death or serious injury.
• A CAUTION indicates a potentially hazardous situation which, if not avoided, could result in
damage to equipment or property.
• A NOTE provides other helpful information that does not fall under the warning or caution
categories.
Revisions—Text changes are indicated by a black line alongside the text.
Woodward Governor Company reserves the right to update any portion of this publication at any time. Information
provided by Woodward Governor Company is believed to be correct and reliable. However, no responsibility is
assumed by Woodward Governor Company unless otherwise expressly undertaken.
© Woodward 1993
All Rights Reserved

Manual 85565 Peak 150
Woodward i
Contents
ELECTROSTATIC DISCHARGE AWARENESS ..................................................V
CHAPTER 1. GENERAL INFORMATION...........................................................1
CHAPTER 2. INSTALLATION..........................................................................2
Packaging...............................................................................................................2
Mounting.................................................................................................................2
Electrical Connections............................................................................................2
CHAPTER 3. CONTROL DESCRIPTION...........................................................7
Introduction.............................................................................................................7
Starting Modes .......................................................................................................7
Operating Modes ....................................................................................................8
Communication.......................................................................................................8
CHAPTER 4. WIRING....................................................................................9
Inputs and Outputs .................................................................................................9
Jumpers and Test Points......................................................................................14
CHAPTER 5. FUNCTIONAL DESCRIPTION ....................................................16
Introduction...........................................................................................................16
Magnetic Pickups .................................................................................................17
Analog Input .........................................................................................................17
Contact Inputs ......................................................................................................17
Actuator Driver......................................................................................................17
Analog Outputs.....................................................................................................18
Relays...................................................................................................................18
Speed Control.......................................................................................................18
Dual Dynamics .....................................................................................................19
Speed Set Point....................................................................................................19
Remote Process Control ......................................................................................19
Idle/Min Control ....................................................................................................19
Critical Speed Avoidance .....................................................................................20
Valve Ramp Control .............................................................................................20
Diagnostics ...........................................................................................................20
Shutdown and Alarm Summary............................................................................21
Magnetic Pickup Failure Override ........................................................................21
Power Supplies.....................................................................................................21
Communications (Optional)..................................................................................22
CHAPTER 6. OPERATING PROCEDURES .....................................................23
Front Panel Operation ..........................................................................................23
Initial Turbine Start ...............................................................................................27
Turbine Start.........................................................................................................27
Idle/Minimum Ramp..............................................................................................28
Critical Speed Band..............................................................................................28
Speed Reference Operating Modes.....................................................................29
Overspeed Test ....................................................................................................31
Shutdown and Alarm Function Summary.............................................................31
Magnetic Pickup Failure Override ........................................................................32
Stroking Actuator ..................................................................................................32
Dynamics Adjustments .........................................................................................33
Communications (Optional)..................................................................................33

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Contents
CHAPTER 7. PROGRAMMING ......................................................................34
Introduction ...........................................................................................................34
Hand-Held Programmer .......................................................................................34
Configure Mode ....................................................................................................37
Service Mode........................................................................................................38
Basic Program Architecture..................................................................................39
Speed Relationships.............................................................................................40
Configuration Mode Programming .......................................................................40
Service Mode Programming.................................................................................42
CHAPTER 8. SERVICE MENUS ....................................................................44
Introduction ...........................................................................................................44
Alarms Menu.........................................................................................................44
Trips Menu............................................................................................................44
Speed Dynamics Menu ........................................................................................45
Adjusting Gain And Reset ....................................................................................45
Speed Values Menu .............................................................................................45
Remote Setting Menu...........................................................................................46
Failed MPU Override Menu..................................................................................47
Idle/Min Ramp Menu ............................................................................................47
Critical Speed Menu .............................................................................................48
Hand Valves or Speed Switches Menu ................................................................48
Valve Menu...........................................................................................................49
Readout Adjustments Menu .................................................................................50
Port Adjustments Menu ........................................................................................50
I/O Check..............................................................................................................52
Service Mode Flow Diagram ................................................................................54
CHAPTER 9. CONFIGURATION MENUS ........................................................58
Introduction ...........................................................................................................58
Speed Configuration Menu...................................................................................58
Start Mode Menu ..................................................................................................59
Actuator Configuration Menu................................................................................59
Operating Mode Menu..........................................................................................59
Readouts Menu ....................................................................................................60
Relays Menu.........................................................................................................60
Contact In #8 ........................................................................................................61
Port Configuration.................................................................................................61
Configure Mode Flow Diagram.............................................................................62
CHAPTER 10. FUNCTIONAL BLOCK DIAGRAM .............................................64
Explanation of Functional Block Diagram.............................................................64
CHAPTER 11. MODBUS COMMUNICATIONS .................................................75
Introduction ...........................................................................................................75
Modbus Wiring......................................................................................................75
Basic Modbus Overview .......................................................................................79
Modes of Transmission ........................................................................................80
Modbus Addresses...............................................................................................83
Additional Information...........................................................................................84

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Contents
CHAPTER 12. TROUBLESHOOTING.............................................................85
General.................................................................................................................85
Diagnostics ...........................................................................................................85
Troubleshooting....................................................................................................85
Troubleshooting Chart..........................................................................................86
Debug Mode Tunables .........................................................................................91
Alarms / Shutdowns..............................................................................................92
Wiring / Component Problems .............................................................................92
Actuators / Control Adjustments...........................................................................93
Other Operating Problems ...................................................................................93
CHAPTER 13. SERVICE OPTIONS ...............................................................94
Product Service Options.......................................................................................94
Returning Equipment for Repair...........................................................................95
Replacement Parts ...............................................................................................96
How to Contact Woodward...................................................................................96
Engineering Services ...........................................................................................97
Technical Assistance............................................................................................98
APPENDIX. PROGRAM MODE WORKSHEETS...............................................99
Introduction...........................................................................................................99
Configure Mode Program .....................................................................................99
Service Mode Program.......................................................................................103
PEAK 150 CONTROL SPECIFICATIONS .....................................................112

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Illustrations and Tables
Figure 2-1. Peak 150 Control Outline Drawing ....................................................4
Figure 2-2. Control Wiring Diagram......................................................................5
Figure 3-1. Speed Relationships ..........................................................................7
Figure 4-1. Power Supply Input............................................................................9
Figure 4-2. Relay Outputs ..................................................................................10
Figure 4-3. Discrete Input Connections..............................................................11
Figure 4-4. Powering Discrete Inputs .................................................................11
Figure 4-5. Modbus Connections .......................................................................12
Figure 4-6. Connections for Analog Outputs......................................................13
Figure 4-7. Connections for Speed Sensing ......................................................13
Figure 4-8. Connections for Analog Input...........................................................14
Figure 4-9. Jumper and Test Point Locations and Functions ............................15
Figure 5-1. System Overview .............................................................................16
Figure 6-1. Front Panel of Peak 150 Control .....................................................24
Figure 7-1. Hand-held Programmer ...................................................................36
Figure 7-2. Basic Program Architecture .............................................................39
Figure 7-3. Speed/Mode Relationships ..............................................................40
Figure 8-1. Service Mode Flow Diagram............................................................54
Figure 9-1. Configure Mode Flow Diagram ........................................................62
Figure 11-1. Modbus Communication Connections ...........................................75
Figure 11-2. Typical RS-232 Communications ..................................................76
Figure 11-3. Typical RS-422 communications ...................................................77
Figure 11-4. Typical RS-485 Communications ..................................................78
Figure 11-5. Basic Modbus Overview ................................................................79
Figure 11-6. Modbus Transmission Modes........................................................80
Figure 11-7. Modbus Frame Definition...............................................................80
Figure 11-8. Modbus Function Codes ................................................................81
Figure 11-9. Modbus Messages.........................................................................81

Manual 85565 Peak 150
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Electrostatic Discharge Awareness
All electronic equipment is static-sensitive, some components more than others.
To protect these components from static damage, you must take special
precautions to minimize or eliminate electrostatic discharges.
Follow these precautions when working with or near the control.
1. Before doing maintenance on the electronic control, discharge the static
electricity on your body to ground by touching and holding a grounded metal
object (pipes, cabinets, equipment, etc.).
2. Avoid the build-up of static electricity on your body by not wearing clothing
made of synthetic materials. Wear cotton or cotton-blend materials as much
as possible because these do not store static electric charges as much as
synthetics.
3. Keep plastic, vinyl, and Styrofoam materials (such as plastic or Styrofoam
cups, cup holders, cigarette packages, cellophane wrappers, vinyl books or
folders, plastic bottles, and plastic ash trays) away from the control, the
modules, and the work area as much as possible.
4. Do not remove the printed circuit board (PCB) from the control cabinet
unless absolutely necessary. If you must remove the PCB from the control
cabinet, follow these precautions:
•Do not touch any part of the PCB except the edges.
•Do not touch the electrical conductors, the connectors, or the
components with conductive devices or with your hands.
•When replacing a PCB, keep the new PCB in the plastic antistatic
protective bag it comes in until you are ready to install it. Immediately
after removing the old PCB from the control cabinet, place it in the
antistatic protective bag.
CAUTION—ELECTROSTATIC DISCHARGE
To prevent damage to electronic components caused by improper handling,
read and observe the precautions in Woodward manual 82715, Guide for
Handling and Protection of Electronic Controls, Printed Circuit Boards, and
Modules.

Peak 150 Manual 85565
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Manual 85565 Peak 150
Woodward 1
Chapter 1.
General Information
This manual describes the Woodward Peak®150 digital control for steam
turbines and the hand-held programmer (9905-292) for the Peak 150 control.
The Peak 150 control is UL Listed for the US and Canada (cUL) for use in Class
I, Division 2, Groups A, B, C, and D or non-hazardous locations only.
WARNING—EXPLOSION HAZARD
The Peak 150 control box should not be opened when a hazardous
atmosphere is present. Wiring connections which could cause sparks are
exposed inside the cabinet.
CAUTION—DO NOT START TURBINE
Do NOT attempt to operate the turbine until the Peak 150 control has been
programmed. To do so could cause equipment damage.
The scope of this manual is to provide information on programming, operation
and troubleshooting of the Peak 150 control. This manual was written for the
program and specifications of the 5-digit display version of the Peak 150 control.
This manual can also be used for the 4-digit display version of the Peak 150
control. For the 4-digit version there may be slight differences in the program.
However, all aspects of the 4-digit version are covered by this manual.

Peak 150 Manual 85565
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Chapter 2.
Installation
Packaging
Figure 2-1 is an outline drawing of the Peak®150 control. All Peak 150 control
components are contained in a single, NEMA 4X enclosure. The enclosure can
be mounted indoors or out. Access to internal components is through a right-
hand-hinged door which is held closed by six captive screws. The approximate
size of the enclosure is 19 x 12 x 4 inches (approximately 483 x 305 x 102 mm).
The enclosure has two openings in the bottom for wiring access. One hole is
approximately 25 mm (1 inch) diameter, and the other is approximately 38 mm
(1.5 inch) diameter. These holes accept either English or metric standard conduit
hubs.
NOTE
If it is necessary to meet NEMA 4X requirements, you must use the
appropriate conduit hubs and conduit when installing this control.
NOTE
When using the stainless steel hubs to meet the NEMA 4X requirements,
ensure the ground post on the conduit hubs is positioned down to allow the
front door to fully and properly close.
All internal components are industrial grade. The components include the CPU
(central processing unit), its memory, the switching power supply, all relays, all
input/output circuitry, and all communications circuitry for the front door display,
touch keypad, remote RS-232, RS-422, and RS-485 Modbus®* communications.
* Modbus is a trademark of Modicon, Inc.
Mounting
The standard Peak 150 control enclosure must be vertically mounted on a wall or
19" (483 mm) rack, allowing sufficient room for lid opening and wiring access.
Two welded flanges, one on the right side and one on the left side, permit secure
mounting.
Electrical Connections
All electrical connections must be made through the two openings in the bottom
of the enclosure to the terminal blocks inside the enclosure. Route all low-current
lines through the large wiring port. Route all high-current lines through the small
wiring port.
Wiring for each MPU and for each actuator must be separately shielded. We also
recommend separate shielding for each mA input. Contact inputs may be
bundled together within a single multiconductor cable with one overall shield.
Shields should be connected only at the Peak 150 control. Relay and power
supply wiring do not normally require shielding.

Manual 85565 Peak 150
Woodward 3
Make sure that all inputs and outputs, including all shields, are NOT grounded
outside the Peak 150 control box. Terminal block 1 (ground) is the only
connection that should be wired to external ground.
See Figure 2-2 for the control wiring diagram and terminal block numbers.
WARNING—EXPLOSION HAZARD
Do not connect or disconnect while circuit is live unless area is known to be
non-hazardous.
Substitution of components may impair suitability for Class I, Division or
Zone applications.
AVERTISSEMENT—RISQUE D’EXPLOSION
Ne pas raccorder ni débrancher tant que l’installation est sous tension, sauf
en cas l’ambiance est décidément non dangereuse.
La substitution de composants peut rendre ce matériel inacceptable pour
les emplacements de Classe I, applications Division ou Zone.
NOTE
All peripheral equipment must be suitable for the location in which used.
Shielded Wiring
All shielded cable must be twisted-conductor pairs. Do not attempt to tin the
braided shield. All signal lines should be shielded to prevent picking up stray
signals from adjacent equipment. Connect the shields to the indicated shield
terminals. Wire exposed beyond the shield should be as short as possible, not
exceeding 50 mm (2 inches). The other end of the shields must be left open and
insulated from any other conductor. DO NOT run shielded signal wires along side
or in the same conduit with other wires carrying large currents. See Woodward
publication 50532, EMI Control for Electronic Governing Systems, for more
information.
Where shielded cable is required, cut the cable to the desired length and prepare
the cable as instructed below:
1. Strip outer insulation from BOTH ENDS, exposing the braided or spiral
wrapped shield. DO NOT CUT THE SHIELD.
2. Using a sharp, pointed tool, carefully spread the strands of the shield.
3. Pull inner conductor(s) out of the shield. If the shield is the braided type, twist
it to prevent fraying.
4. Remove 6 mm (1/4 inch) of insulation from the inner conductors.
Installations with severe electromagnetic interference (EMI) may require
additional shielding precautions. Contact Woodward for more information.

Peak 150 Manual 85565
4 Woodward
Figure 2-1. Peak 150 Control Outline Drawing

Manual 85565 Peak 150
Woodward 5
Use this Wiring Diagram with part Use this Wiring Diagram with all
numbers 8200-004, -020, -021, other part numbers referenced in
-022, and -023 this manual.
Figure 2-2. Control Wiring Diagram

Peak 150 Manual 85565
6 Woodward
Power Supply
Run the power leads directly from the power source to the control box. Use 12
AWG or larger wire for the power supply. Shield the power supply wires and
connect the shield to an external point. DO NOT POWER OTHER DEVICES
WITH LEADS COMMON TO THE CONTROL. Avoid long wire lengths. This
wiring must be fully enclosed in conduit to meet Class I, Division 2, Group D
requirements.
NOTE
Input and output wiring must be in accordance with Class I, Division 2
wiring methods and in accordance with the authority having jurisdiction.

Manual 85565 Peak 150
Woodward 7
Chapter 3.
Control Description
Introduction
The Peak®150 digital control is a microprocessor-based control designed to
control single-valve or single-valve rack steam turbines. A microprocessor-based
digital control provides flexibility in configuring to your specific control
requirements. This ability to configure your system in the field allows a single
design to be used in many different control applications, and reduces both cost
and delivery time.
Starting Modes
The Peak 150 control has two starting modes: manual start mode and automatic
start mode.
Manual Start Mode
With the manual start mode, speed control begins at minimum governor speed
(as opposed to idle speed) (see Figure 3-1).
Figure 3-1. Speed Relationships
Minimum governor speed is the lower limit of the normal operating speed range.
All speed control during start-up is the responsibility of the operator until
minimum governor speed is reached.
Automatic Start Mode
With automatic start mode, speed control begins at idle speed (which is lower
than minimum governor speed). A critical speed band can be configured if
needed. The speed set point is used to bring the turbine speed up to minimum
governor speed, either manually (with the Raise/Lower commands) or
automatically (with the front-panel START pushbutton or the Idle/Minimum Ramp
contact input).

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8 Woodward
Operating Modes
The Peak 150 control has three operating modes: manual mode, remote speed
set mode, and combination mode.
Manual Mode
If the manual mode is configured, the turbine speed is adjusted solely by the
front panel keys and the remote raise and lower discrete inputs. The remote
speed setting analog input is ignored in this mode.
Remote Speed Set Mode
When the remote speed set mode is configured, the turbine speed is determined
by the remote speed setting analog input. When the remote speed setting enable
contact is closed and the turbine is at or above minimum governor speed, turbine
speed will ramp from minimum governor speed to the remote value at a user-
defined rate. Once the speed set point output matches the setting of the remote
speed setting signal, the speed will change at a new user-defined rate for
process control. If the remote speed setting signal is disabled for any reason, the
speed set point will remain at the last speed and the set point adjustment
operates as it does in manual mode.
Combination Mode
The combination mode is similar to the analog remote speed set mode, except
that the speed demand generated by the discrete (front panel and remote raise
and lower contact inputs) and the analog remote speed setting signal are
compared for the highest value. This highest value is passed on as the
commanded speed. If the remote speed setting signal is disabled for any reason,
control of the speed set point operates as it does in manual mode.
Communication
The Peak 150 control has four methods of communication:
• Control panel
• Hand-held programmer
• Remote inputs for governor commands
• An optional Modbus protocol serial port

Manual 85565 Peak 150
Woodward 9
Chapter 4.
Wiring
Inputs and Outputs
All inputs and outputs to the Peak®150 control are made through terminal blocks
inside the Peak 150 control enclosure. Wiring passes through two wiring ports on
the bottom of the control.
Inputs and outputs to the control are:
• Power supply input
• Discrete outputs
• Discrete inputs
• Modbus communications (optional)
• Analog outputs
• Speed sensor (magnetic pickup) inputs
• One analog input (remote speed set)
• A service port for the hand-held programmer
WARNING—EXPLOSION HAZARD
The Peak 150 control box should not be opened when a hazardous
atmosphere is present. Wiring connections which could cause sparks are
available inside the cabinet.
NOTE
For part numbers 8200-004, -020, -021, -022, and -023, the wiring information
in this chapter does not apply. To wire these controls refer to Control Wiring
Diagram Figure 2-2.
Power Supply
Figure 4-1 shows the power-supply connections. The following tables show the
Input voltages and frequencies for the different versions of the Peak 150 control.
Maximum power consumption is 38 W.
cUL Version NEMA 4 Part Number NEMA 4X Part Number
24 Vdc 9905-857 9905-863
24 Vdc w/Modbus 9905-860 9905-866
ac/dc 9905-858 9905-864
ac/dc/ w/Modbus 9905-861 9905-867
Figure 4-1. Power Supply Input

Peak 150 Manual 85565
10 Woodward
Version Input Voltage Frequency
1 (24 Vdc) 18–32 Vdc NA
2 (ac/dc) 90–150 Vdc NA
88–132 Vac 47–63 Hz
No power switch is provided, the unit operates whenever power is applied. Input
over-or under-voltage shutdown is not provided; if the +5 Vdc supply in the unit
goes below 4.7 volts, the microprocessor will be reset.
Discrete Outputs
There are four hermetically-sealed relays: two dedicated, two user-configurable:
• Relay output #1 = TRIP
• Relay output #2 = ALARM (de-energizes for alarm)
• Relay output #3 = USER-CONFIGURE (energizes for function)
• Relay output #4 = USER-CONFIGURE (energizes for function)
The Trip Relay can be configured to either de-energize or energize for shutdown
(see Figure 4-9 jumper option chart).
If required the configurable relays can be programmed as an additional Trip
(using Option 2) or Alarm (Option 1) function. See Functional Block Diagram
(Chapter 10) or Relays section of Configuration Menu (Chapter 9) for options.
Figure 4-2 shows the relay terminals.
Figure 4-2. Relay Outputs
Internal jumpers provide a choice of normally open or normally closed contacts
(see Figure 4-9 for jumper option chart).
Relay Contact Output Ratings
• 2 A Resistive @ 28 Vdc
• 0.3 A Resistive @ 115 Vac
NOTE
An interposing relay is required if more current is needed.

Manual 85565 Peak 150
Woodward 11
Discrete Inputs
There are eight discrete inputs (shown in Figure 4-3), powered either by an
internal 24 Vdc supply or by an external 5–28 Vdc supply:
• Input #1 = Lower Speed
• Input #2 = Raise Speed
• Input #3 = External Trip
• Input #4 = Start
• Input #5 = Reset
• Input #6 = Idle/Minimum Governor
• Input #7 = Remote Speed Enable
• Input #8 = Select High Dynamics or Overspeed Test
Input #3 (External Trip) opens for a trip condition. Input #6 (Idle/Minimum
Governor) closes to select minimum governor and opens to select idle. All other
inputs close for the function listed.
NOTE
A jumper or external shutdown switch must be installed across Input #3.
As shown in Figure 4-4, internally powered contact inputs (dry contacts) use
Jumper 15 and +24 Vdc from analog Outputs Terminal 33 or 39). Externally
powered contact inputs use Jumper 16 and an external + 24 Vdc supply.
Figure 4-3. Discrete Input Connections
Figure 4-4. Powering Discrete Inputs

Peak 150 Manual 85565
12 Woodward
Modbus Communications
Figure 4-5 shows the connections for Modbus communications. Refer to Chapter
11 for additional Modbus information.
If terminals 21–34 are not installed, your unit is not capable of Modbus
communications.
Figure 4-5. Modbus Connections
Analog Outputs
• Analog output #1 = Speed Readout
• Analog output #2 = User Configurable
• Actuator output = Signal to Actuator
Figure 4-6 shows the Analog Output connections. Analog outputs #1 and #2 are
4–20 mA or 0–1 mA, internal jumper selectable (see Figure 4-9 for jumper option
chart).
Actuator output is 0–20 mA or 0–200 mA, internal jumper selectable (see Figure
4-9 for jumper option chart).
The fuel-valve actuator wires will carry a 0–200 mA or 4–20 mA signal and must
be fully enclosed in conduit to meet hazardous-environment requirements.
The speed readout output is included in the control connections to drive a
tachometer installed at the turbine site or in the turbine control room.
The control may be tailored to give accurate readings on the tachometer by
making adjustments on the set point programmer (see Service Menus and
Configure Menus Chapters).
See Readouts section of Configuration Menus for Configurable Readout options.
Figure 4-6 shows the connections for analog outputs.