Simpson S661 Operation Manual

S661

Rate Counter

Operation Manual

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About this Manual

To the best of our knowledge and at the time written, the information contained in this
document is technically correct and the procedures accurate and adequate to operate this

instrument in compliance with its original advertised specications.

Notes and Safety Information

This Instruction Manual contains warning headings that alert the user to check for hazardous

conditions. These appear throughout this manual where applicable, and are dened below.

To ensure the safety of operating performance of this instrument, these instructions must be
adhered to.

Warning, refer to accompanying documents.

Attention, consulter les documents d’accompagnement.

Caution, risk of electric shock.

Attention, risque de choc électrique.

Warranty and Returns

SIMPSON ELECTRIC COMPANY warrants each instrument and other articles manufactured
by it to be free from defects in material and workmanship under normal use and service, its
obligation under this warranty being limited to making good at its factory or other article of
equipment which shall within one (1) year after delivery of such instrument or other article of
equipment to the original purchaser be returned intact to it, or to one of its authorized service
centers, with transportation charges prepaid, and which its examination shall disclose to its
satisfaction to have been thus defective; this warranty being expressly in lieu of all other war­ranties expressed or implied and of all other obligations or liabilities on its part, and SIMPSON
ELECTRIC COMPANY neither assumes nor authorizes any other persons to assume for it any
other liability in connection with the sales of its products.

This warranty shall not apply to any instrument or other article of equipment which shall have
been repaired or altered outside the SIMPSON ELECTRIC COMPANY factory or authorized
service centers, nor which has been subject to misuse, negligence or accident, incorrect wiring
by others, or installation or use not in accord with instructions furnished by the manufacturer.

Under the normal eld usage there is no need to remove the front bezel of this product. The
front bezel of this product should only be removed by a qualied technician.

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Contents

1 Product Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

1.1 General Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Part Number Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.3 Option Module Summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2 Hardware Setup. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Panel Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Removing / Installing Option Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 120/240 VAC Power Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Standard Input Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

2.5 Quadrature Input Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.6 Excitation Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

2.7 Single and Dual Relay Modules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

3 Display & Keypad Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1 Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.2 Display Error Messages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.3 What the Keys Do in Display Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4

3.5 Special Start-Up Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

What the Keys Do in the Programming Mode. . . . . . . . . . . . . . . . . . . . . 18

4 Counter Operations and Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.1 Password and Security Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.2 A/B

4.3 Rate (Frequency) Scaling and Display. . . . . . . . . . . . . . . . . . . . . . . . . . .25

4.4 Output Control Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.5 Set Point Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

4.6 Miscellaneous Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2

Appendix A: Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

A.1 Functional Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

A.2 Electrical, Environmental and Mechanical Specifications. . . . . . . . . . . . 31

Appendix B: Programming Quick Reference. . . . . . . . . . . . . . . . . . . . . . . . . . 33

Channel Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

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1 Product Description

1.1 General Description

The S661 rate counter fits a 1/8 DIN standard cutout and is perfect for tight spaces,
extending only 3.24” (82mm) behind the panel. The unit is UL listed. The unit is for in­door use at altitudes up to 2000m, temperatures between 0° and 40°C and installation
category III, pollution degree 2.

The counter is powered from 120 or 240 VAC. The nonvolatile EEPROM retains all
programming and count information when power is removed or interrupted.

Display scaling, preset values and all menu functions are easily programmed from the
front panel, following easy-to-use word prompts. Front panel reset disable and pass­word lockout protection features guard against unauthorized or accidental changes.

The counter accepts count rates up to 30 kHz and pulses from different types of sen­sors, including Quadrature, CMOS or TTL circuits and PNP or NPN devices.

The optional, field-replaceable single/dual relay module enhances the counter from a
passive display device to an integral control element for your application. The counter
has latching, boundary or timed (0.01 to 599.99 seconds) output modes.

An optional 12 VDC (100mA) excitation output module can provide power for external
sensors.

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1.2 Part Number Identification

The following matrix indicates the configuration of your S661 counter.

Basic Unit

S661

Power Supply

120 VAC
240 VAC

1
2

Quadrature

1.3 Option Module Summary

Input

Standard

1
2

1

Input Excitation Power

Output

None

One relay

Two Relays

2

0
1
2

4

Supply

Excitation

None
12VDC

Other

0
1

None

0

5

Output

Figure 1. Option Module Slots (Rear View)

The S661 is a modular product which uses field configuring slide-in modules. The
modules slide easily into the rear of the counter.

Figure 1 displays the functional assignments for each module position.

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Table 1 describes available option modules for the S661.

Table 1. Option Module Summary

Module

slot

1 Input Standard Input Module

1 Input Quadrature Input Module

2Ext 45064 12 VDC Excitation Module

4Power 120 VAC Power Module

4Power 240 VAC Power Module

5 Output 45062Dual Relay Module

5 Output 45063 Single Relay Module

Type P/N Description

See

Section

2.4

2.5

2.6

2.3

2.3

2.7

2.7

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2 Hardware Setup

2.1 Panel Installation

The S661 1/8 DIN counter requires a standard 1/8 DIN panel cutout of 1.77” (45mm)
high by 3.62” (92mm) wide. To install the counter into a panel cutout, remove the clips
from the side of the counter. Slide the counter through your panel cutout, then slide
the mounting clips back on. Press evenly to ensure a proper fit.

3.62"

92mm

3.24"

82mm

1.77"

45mm

1.74"

44mm

.52"

13.2 mm

%

RESET

99.8 mm

ENTER

3.93"

2.04"

51.8mm

Figure 2. Counter and Panel Cut-Out Dimensions

Figure 3. Panel Mounting Clips

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2.2 Removing / Installing Option Modules

Shut power off before removing or installing any option modules

Couper le courant avant de retirer ou d’installer des modules optionnels

1. Remove module from case by inserting a screwdriver into tab slot opening at top of input
module. Apply pressure to release module from case. Repeat procedure for tab located on
underside of module and then slide module away from the case.

2. Refer to appropriate sections to congure switches or jumpers for proper operation.

Table 1 can be used to identify modules and their associated detail paragraph.

3. Install module by carefully aligning module edges with slots in case and pressing forward
until tabs (on top and bottom) engage.

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2.3 120/240 VAC Power Module

Remove power before wiring option modules.

Coupez l’alimentation avant de raccorder les modules optionnels.

The AC power module allows the S661 to be
operated from standard 50/60 Hz line power.

The power module will be congured as 120
VAC or 240 VAC per markings on the back
panel. Ensure the input rating of the supply
matches your line voltage. The power supply
module has provisions for a hard-wire Alarm
Reset. This control can be a switch, relay
contact or solid state device. Actuation is
immediate upon an active Low for at least

2.5ms to this terminal. The reset circuit is

independent of the power circuit.

Denotes modules position 4 at rear
of counter

~

~

VAC

VAC

RESET

COMMON

POWER

Power Supply 120 VAC or 240 VAC
power connection

Remote Reset
Active low 0.2V performs primary
reset

Figure 5. AC Power Module

NOTE: A fusible link is not provided on this module.
A ½ Amp Time Delay fuse, Bussman MDL ½, or similar is required.

Never connect AC mains (hot or neutral) to the Reset or Common terminals!

Ne jamais brancher sur secteur (chaudes ou neutres) pour la réinitialisation
ou terminaux communs!

2.4 Standard Input Module

Denotes module position 1 at rear of counter

A INPUT

COMMON

USER
INPUT

B INPUT

COMMON

Primary Input
Connect the input signal to A INPUT and COMMON

Display Hold
Active low
‘Freezes’ Display Value

Secondary Input
Direction Control or count pulse input

IINPUT

Figure 6. Standard Input Module

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DIP Switch
(Shown for TTL Factory Settings)

FUNCTION

B Bias Off=Hi On=Lo
B Freq Off=Hi On=Lo
B Off= Sink On= Source
A Bias Off=Hi On=Lo
A Freq Off=Hi On=Lo
A Off= Sink On= Source

Dipswitch Legend

= ON

= OFF

CHANNEL

1 2 3 4 5 6

1 2 3 4 5 6

Note: Refer to specifications

for DIP switch function
electrical characteristics

Figure 7. Standard Input Module Default Settings

DIP switch SW1, figure 7, is used to set up the counter to conform to the electrical
characteristics of the sensor or signal being detected. Switch positions 1-3 config­ure channel B, while switches 4-6 configure channel A. These switches select bias
(threshold voltages), low pass filter (enable/disable) and sensor type (Sink or Source).

Refer to the documentation that accompanied the sensor for related information. The
sensor can most likely be matched to one of the typical switch settings shown in figure
8 and figure 8a.

Note: The input boards are designed so that selecting sourcing or sinking is
based on the type of sensor that is being used. If a PNP (sinking) sensor is be­ing used, set the input board for sinking also (switched 3 and 6 = OFF).

If channel B is not used, default settings for switch positions 1 through 3 should be se­lected. Default settings are provided in Table 2.

The input module also provides for a user input signal. On the S661, this input per­forms a Display Hold. While active, the rate value shown on the display is “frozen.”
Internal measurements and output controls continue to operate.

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The S661 can accept inputs from many different sensors. The A and B channels may

+

be configured independently as shown in Table 2. Figures 8 and 8a have examples of
some typical sensors and the wiring connections that would be used.

Table 2. Standard Input Module DIP Switch Settings

* = Factory Default setting
1 B Channel Bias: OFF = Hi* VLT = 5.0 V VUT = 7.0V (+/- 10%)
ON = Low VLT = 1.6 V VUT = 3.6V (+/- 10%)

2 B Channel Frequency: OFF = Hi* (low pass filter disabled)
ON = Lo (low pass filter enabled)

3 B Channel Sensor: OFF = Sinking* (internal pull-up enabled)
ON = Source (internal pull-down enabled)

4 A Channel Bias: OFF = Hi VLT = 5.0 V VUT = 7.0V (+/- 10%)
ON = Low* VLT = 1.6 V VUT = 3.6V (+/-10%)

5 A Channel Frequency: OFF = Hi* (low pass filter disabled)
ON = Lo (low pass filter enabled)

6 A Channel Sensor Type: OFF = Sinking* (internal pull-up enabled)
ON = Source (internal pull-down enabled)

ON

1 2 3 4 5 6

LOW BIAS
LOW FREQUENCY
SOURCING

A INPUT

COMMON

USER
INPUT

B INPUT

ISO+12V

ISOCOM

COMMON

EXCITATION

INPUT

__

---

+

_

HIGH FREQUENCY

HIGH BIAS

SINKING

OUTPUT

ON

1 2 3 4 5 6

LOW BIAS
LOW FREQUENCY
SOURCING

A INPUT

COMMON

USER
INPUT

B INPUT

ISO+12V

ISOCOM

COMMON

INPUT

EXCITATION

HIGH BIAS

__

---

HIGH FREQUENCY

+

_

SINKING

COMMON

NPN SENSOR

PNP SENSOR

Figure 8. Sensor Connection Examples

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ON

1 2 3 4 5 6

HIGH FREQUENCY

HIGH BIAS

SINKING

DRY CONTACT

LOW BIAS
LOW FREQUENCY

SOURCING

A INPUT

COMMON

USER INPUT

B INPUT

COMMON

INPUT

Figure 8a. Sensor Input example

2.5 Quadrature Input Module

The Quadrature / Universal Input Module has two operational modes: Quadrature
mode and Standard mode. Quadrature mode is selected by positioning JP1 and JP2
on pins 1 and 2. Standard mode is selected by placing JP1 and JP2 on pins 2 and 3
(see Figure 10 for details). The Quadrature mode supports a wide range of encoders
including the Simpson SE series.

While in Standard mode, this module works similarly to the Standard Input module,
with the added capability to selectively invert A, B, and User input signals. The Input
module also provides for a User input signal. On the S661 this input serves as a Dis­play Hold. While active, the rate value shown on the display is “frozen.” Internal mea­surements and output controls continue to operate.

NOTE: If B channel is not going to be used, use the default switch settings for
SW1 positions 1 through 3. Default settings are provided in Table 3.

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In both modes, the state of the User input signal can be selected as active high or ac­tive low. DIP switch SW1 configures the counter to match the specifications of the ac­companying sensor. When shipped from the factory, the counter is set for X1 quadra­ture, as shown in Figure 10 and Table 3:

Denotes module

position 1 at rear

of counter

A INPUT

Primary Input

COMMON

USER
INPUT

or

Quadrature A

Display Hold

Freezes

Displayed value

Figure 9. Quadrature / Universal Input Module

1 23

JP2

Note: To Enable
standard count Mode
move both jumpers
down one pin

Quadrature

Count

Standard

Count

B INPUT

COMMON

INPUT

1 23

JP1

B Bias Off=Hi On=Lo

B Freq Off=Hi On=Lo

B Off= Sink On= Source

1 2 3 4 5 6 7 8 9 10

Secondary Input

or
Quadrature B

A Freq Off=Hi On=Lo

A Off= Sink On= Source

A Bias Off=Hi On=Lo

Quadrature Mode

(Factory Defualt)

B Edge Off= On=

SW1

Dip Switch:

Shown in

A Edge Off= On=

User pol Off= On=

Quadr Off=X4 On=X1

Dipswitch Legend

= ON

= OFF

Figure 10. Quadrature Input Module Default Settings

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Table 3. Quadrature Module DIP Switch and Jumper Settings

JP1/2: Count Mode Selector
Jumpered 1-2 = Quadrature mode**
Jumpered 2-3 = Standard counter mode
SW1: 10 Position DIP Switch
* = Factory Default setting

1 B Channel Bias: OFF = Hi* VLT = 5.0V VUT = 7.0V (+/- 10%)
ON = Low VLT = 1.6V VUT = 3.6V (+/- 10%)

2 B Channel Frequency: OFF = Hi* (low pass filter disabled)
ON = Low (low pass filter enabled)

3 B Channel Sensor: OFF = Sinking* (internal pull-up enabled)
ON = Source (internal pull-down enabled)

4 A Channel Bias: OFF = Hi* VLT = 5.0 V VUT = 7.0V (+/- 10%)
ON = Low VLT = 1.6 V VUT = 3.6V (+/- 10%)

5 A Channel Frequency: OFF = Hi* (low pass filter disabled)
ON = Lo (low pass filter enabled)

6 A Channel Sensor Type: OFF = Sinking* (internal pull-up enabled)
ON = Source (internal pull-down enabled)

7 B Channel Count Edge: OFF = Rising (standard count mode only)
ON = Falling*

8 A Channel Count Edge: OFF = Rising (standard count mode only)
ON = Falling*

9 User Input Polarity: OFF = High/open circuit = Inhibit Count
ON* = Low/closed circuit = Inhibit Count

10 Quadrature Mode: OFF = X4 (quadrature mode only)
ON = X1*

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2.6 Excitation Module

QUADRATURE
ENCODER

PHASE A-WHITE

PHASE B-GREEN

+

COMMON

(BLACK)

POSITIVE-RED

A INPUT

COMMON

USER
INPUT

B INPUT

COMMON

INPUT

QUADRATURE
INPUT CARD

ISO+12V

ISOCOM

EXCITATION

EXCITAT ION

CARD

+

__

---

_

Figure 11. Wiring Encoder w/ Excitation Supply

12 VDC Excitation Module

The Excitation Module can supply 12 VDC at up to 100 mA for external sensors or en­coders. This excitation is isolated from the counter internal logic supply. When using
sensors or encoders that do not have a signal return or imply a signal return that is in
common with the supply voltage, a common attachment that ties the excitation supply
to the logic input common may be required. Examples of this appear in figures 8, 8a,
11 and 12.

DENOTES MODULE POSTION 1
AT REAR OF COUNTER

CHANNEL A-WHITE

CHANNEL B-GREEN

MODEL S.E.
QUADRATURE

ENCODER

EXTERNAL
POWER
SUPPLY

+

POSITIVE (RED)

+

COMMON
(BLACK)

INPUT

QUADRATURE
INPUT CARD

Figure 12. Wiring Encoder with External Supply

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A INPUT

COMMON

USER
INPUT

B INPUT

COMMON

Denotes module
position 2 at rear of

counter

ISO+12V

+

__

---

ISOCOM

EXCITAT ION

_

Figure 13. Excitation Module

2.7 Single and Dual Relay Modules

12 VDC, 100 mA max

Figure 14. Single Relay Figure 15. Dual Relay

The Single and Dual Relay modules can activate circuit loads of up to 5 amps at 250
VAC. A Form C configuration allows use of normally-open (NO) and normally-closed
(NC) circuit action.

Only the output 1 channel is implemented in the single relay module.

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3 Display & Keypad Controls

3.1 Display

Output Status

Indicators

4 Button Keypad

Figure 16. Display and Keypad Layout

• 6-digit 0.56” high red LED display.

Numeric & Message Display

Units Window

• 2 Output Status Indicators; “1” and “2.”

• Units Window for supplied label or legend.

• 4-Button keypad with tactile response.

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3.2 Display Error Messages

Table 4. Display Error Messages

Display Description Action Required

PAdErr

The Keypad is disabled or a key is stuck in
the ON position

Cycle power to the

counter, if the error

remains, return

counter to factory for

repair.

999999 or

-99999

(Flashing)

E1

(Outputs

deactivate, count

stops)

E2

(Outputs

deactivate, count

stops)

E3

(Outputs

deactivate, count

stops)

The displayed count is too large for the
counter to displa
buffer is much larger than the display, the

counter will maintain accurate count and
control well beyond the display value.

Raw Count Overflow: The nu
pulses has exceeded the counter’s maximum
internal value (2,147,483,648 or

-2,147,483,648)

Math Overflow: A large scale factor in
combination with large raw count has
exceeded the counter's maximu

value (+2,147,483,648 or -2,147,483,648)

Watc

experience an orderly power-down. This can
h appen by exceed i n g the ma x i mum

allowable count speed for a sustained period
of time.

hdog Fau lt: T he counter did n o t

y. Since the internal count

mber of count

m internal

Reset Counter

Reset Counter

Reset Counter

Reset Counter

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3.3 What the Keys Do in Display Mode

Key Keypad behavior

Allows quick access to all the set points. This

S or T

feature can be disabled by using a password (see
section 4.1).

Hold and

Press S

ENTER

Access the Programming Menu.

3.4 What the Keys Do in the Programming Mode

Key Keypad behavior

RESET

S orT

ENTER

Press and hold for four seconds to exi t the
programming mode.

The up and down keys navigate through the
available menu functions. The menu ‘wraps
around’ when the bottom or top of the menu is

reached.

1) Enter the current menu or parameter to
view/edit.

2) Write the change to the counter memor

move to the next function.

y and

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Setup Menu Function Menu Option Menu

CHPASS 000

INPUT
SETUP

COUNT SETUP

other setup menus

END

ENTER

ENTER

ENTER

A CHAN UP

B CHAN DOWN

Return to

Display Mode

ENTER

ENTER

Figure 17. Programming Menu Structure

000

up
down
quad

rquad

dir

up
down

ENTER

ENTER

ENTER

In the Programming Mode, the S661 will return to Display Mode automatically if a key
is not pressed within 120 seconds (2 minutes). The menu is comprised of three lev­els: Setup Menu, Function Menu and Option Edit Menu. Figure 17 illustrates the three
levels of the menu system.

Password Entry Entry (Pass) and changing of the password (Chpass) are similar to

editing a numerical parameter. See Numerical Value below. If the
password has been set to a value other than “000,” entry of the prop­er password is required to access the remainder of the menu.

Setup Menu At the first level of the menu, the arrow keys navigate up or down

through the available Menu selections.

Function Menu The second level of the menu contains the functions or software pa-

rameters that need to be configured for the counter to operate prop­erly

Option Menu Contains either Choice Lists or Numerical Values for configuring the

counter

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Choice List A Choice list allows one to select from a fixed number of options. A

Choice List is found in the Options section of the menu. This list is
made up of the available options for the function that is being ed­ited. Example: Menu is Input Setup Menu, the Function is A Chan­nel, the Choice List is up, down, quad and rquad (see Table 6).

Key Keypad behavior

The up and down keys scroll through the

ST

available choices in the Choice list.

ENTER

Saves the current choice as new parameter
setting and steps to next parameter or category.

Numerical Value A numerical entry allows the changing of set point values, scale

values, etc.

Key Keypad behavior

RESET

S or T

ENTER

Selects the next digit to the left of the current
flashing digit for editing.

The up and down keys increment or decrement
the flashing digit. Some parameters support
negative numbers. In these cases, the most
significant digit can be made negative by
incrementing it past "9."

Saves the values as the ne

w setting for the
function in memory and advances to the next
function of the menu automatically.

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3.5 Special Start-Up Modes

There are two start-up modes for the S661 counter. The default start-up mode will be
used every time the counter is powered up by the user. There is one alternate start­up mode that will allow the operator to return the counter software functions to factory
default settings.

The alternate start-up modes can only be accessed by pressing and holding certain
keys during the power up sequence.

• Press and hold both keys on the face of the counter

• Apply power while holding keys

Key Keypad behavior

Returns parameters to factory defaults. Resets

ENTER

and

RESET

password to 000, and all user scaling, operation
modes and set points to factor y defaults. The
display will show freset.

4 Counter Operations and Parameters

This section details the programming options of the S661, presuming all defaults are in
place.

If you are already familiar with the S661 programming, see Appendix B for the Pro­gramming Quick Reference Guide.

To enter the Programming Mode, hold and press .

To return to the Display Mode, press and hold for four seconds.

ENTER

RESET

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4.1 Password and Security Controls

The security feature helps prevent accidental changes to counter settings.

The password value determines the counter’s security level, as shown in Table 5.

If you have forgotten the password, see section 3.5; Special Start-Up Modes.

1) After entering the Programming Mode, the first field is Password.

a) If no password has been assigned, the counter will flash between chpass,

for “Change Password,” and the default value, 000.

b) To change the password, press when the display shows 000. Use the

ENTER

arrow keys to change the flashing digit to the desired number.

c)

Press to advance to the next digit. Press to accept the password to

RESET

ENTER

counter memory and press it again to advance to the next parameter, Input
Setup.

Table 5. Password Values

Password Value Level of Security

No Security - Default setting

000

001 - 099

100 - 999

Allows full access to the Programming Menu and

Quick Access to set points is enab led.

Fully secure

The Programming Menu is secured by password

and Q

Programming Menu is secured by password,

Quick Access to set points via up and down keys

uick Access to set points is disabled.

Quick Access Only

enab led.

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2) If a password is already in the counter, the display will flash between pass, for
“Enter Password,” and the default value, 000.

a) When the display shows 000, press . Use the arrow keys to change the

flashing digit to the desired number. Press to advance to the next digit.

ENTER

RESET

b) Press to enter the password as shown. If an incorrect password is en-

ENTER

tered, access denied will flash on the display. Press an arrow key to return
to the pass display.

c) After entering the correct password, the counter will return to chpass.

Press to change password, or press the key to continue to the Input

ENTER

Setup menu category.

4.2 A/B Channel Options (Input Setup)

The next category in the Programming Mode is the “Input Setup.” Here you can adjust
the A and B channels to the appropriate count modes.

The A channel input may be selected as an Up, Down, Quadrature or Reverse
Quadrature* input.

As an Up channel, pulses applied to the A input are added to the display. In Down
mode, subtraction occurs. Note that when using Quadrature inputs, appropriate hard­ware (jumper) settings may be needed.

* The Reverse Quadrature input allows the user to reverse the count direction of the
encoder in software instead of having to rewire/remount the encoder.

Table 6. Channel A Selection

A CHAN Direction B CHAN

UP Up User defined

DOWN Down User defined

QUAD Up Not Available

R QUAD Down Not Available

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1) To set the A Channel value:
a) When the display flashes input setup, press . The display will change to

ENTER

a chan.

b) Press again to proceed to the choice list. Scroll through up, down, quad,

ENTER

and r quad using the arrow keys.

c) When the selection is complete, press to accept the selection to counter

ENTER

memory, and press again to proceed to the next parameter, Chan B Mode.

The B channel may be set as Up, Down or Direction. In the direction mode, the B
channel is no longer a count source, but controls the count direction of the A channel
input. This state control works as an ‘exclusive-or’ with the channel A direction. Thus,
if B input is in the ‘Down’ state and A channel is set to Down, pulses at the A input will
increment count.

A Channel Setting State at B Input Resulting Count

UP UP UP

UP DOWN DOWN

DOWN UP DOWN

DOWN DOWN UP

Table 7. Count Behavior with B Channel Set as Direction Control

When A channel has been set to either Quadrature or Reverse Quadrature settings,
the B channel internally behaves as a direction control.

2) To set the B channel:
a) In the Input Setup area, after entering the A Chan value, the display will

flash between b chan and the counter’s default (dir).
b) When the display shows dir, press .
c) Use the arrow keys to change the value, then press to accept the selec-

ENTER

ENTER

tion and proceed to the next menu category, Count Setup.

NOTE: The B channel will not show in the menu when Quadrature or Reverse
Quadrature has been selected for the A Channel input.

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4.3 Rate (Frequency) Scaling and Display (Rate Setup)

One of four rate modes may be selected to best accommodate input frequencies
ranging from 0.00278 Hz to 30 kHz. Select the rate mode according to Table 8.

Range

(implied scale)

mSec

(Hz ÷ 1000)

Sec

(Hz x 1)

Min

(Hz x 60)

Hr

(Hz x 3600)

Typical
Update

Period

1.0 sec 1 Hz 30 KHz

0.5 sec 2 Hz 30 KHz

3 sec

90 sec 40 Counts/Hr 3.0M Counts/Hr

Min. Input

Frequency

20

Counts/Min

Max. Input

Frequency

1.2M

Counts/Min

Comments / Typical Application

1/1000 Hz resolution / High precision

measurement of power line frequency

1 Hz resolution / Typical Setting for most

applications

Use when measuring ‘units per Minute'

Measures ‘units per Hour'. Also for very low

frequencies.

Table 8. Rate Mode Selection
Rate can also be displayed as a signed entity and will be negative according to the
direction state (see section 4.2). When B channel is configured for up or down count
input, the rate is the sum of the frequencies at A and B with the polarity of rate deter­mined by the A channel up/down mode.

1) To set the rate mode, enter the Programming Mode and press until the rate

setup menu category is reached.

2) Press to continue to the parameter name rmmode. The display will flash be-

ENTER

tween rmmode and the default setting sec. When the display shows sec, press

.

ENTER

3) Use the arrow keys to scroll through the choices (mm sec, sec, mmin, hr). Press
when the correct mode is selected to accept mode and proceed to next pa-

ENTER

rameter, Scale.

Rate Scale

1) At scale, the display will flash between rscale and the default 01.0000, when the

display shows 01.0000, press .

2) Use the arrow keys to select the correct value for the flashing digit, press to

ENTER

RESET

advance to the next digit.

3) When the correct value is displayed, press to accept and proceed to next pa-

ENTER

rameter, Rate DP.

Rate Decimal Point Position

1) To set the Decimal Point position, enter the Programming Mode, and press

until the rate setup menu is reached.

2) Press to continue to the Parameter Name rat dp. The display will flash be-

tween rat dp and the default 000000. When the display shows 000000, press .

3) Use the arrow keys to scroll through the choices. Press when the correct deci-

ENTER

ENTER

ENTER

mal place is selected to accept value and proceed to the next parameter name,
Rate Offset.

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Rate Offset

1) To set the Rate Offset, enter the Programming Mode, and press until the rate
setup menu is reached.

2) Press to continue to the Parameter Name offset. The display will flash be­tween offset and the default 000000. When the display shows 000000, press .

3) Use the arrow keys to select the correct value for the flashing digit, press to

ENTER

ENTER

RESET

advance to the next digit.

3) When the correct value is displayed, press to accept and proceed to next

ENTER

menu category, Output 1 Mode.

Examples for Rate Mode, Rate Scale, Rate Decimal Point Position and Rate Offset are
on following pages:

Description Value Formula Value

Pulses per second

seen at input

Mode 2 = x1 sec/Hz sec Mode

User-entered

Multiplier

User-entered

additive value

Decimal Position 0000.00 DP

10000 Input Frequency

.5000 Scale

100.00 Offset

Table 9. Rate Example
The input frequency can be linearly scaled using the Scaling Multiplier, Offset and
Decimal Point. The rate channel has an offset value as well. To illustrate, the follow­ing example will be used:

1) Multiply Input Frequency by implied Mode multiplier
10000 x 1= 10000

2) Multiply by user-specified Scale:

3) Discard all digits to right of decimal place:
(If number is larger than six digits, it will not fit in the display)
5000

4) Apply the user-specified DP location:

50.00

5) Add user-specified Offset location:

250.00 - 100.00 = 150.00
(That is what will be seen of the display)
The following notation may be used to describe this behavior:
Display = INT [Fint x Scale] DP + Offset

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4.4 Output Control Modes

The S661 supports two independent output channels with four modes of operation:
disabled, timed, latched and boundary.

Output Type Description

Disabled Output

Timed Output

Latch Output

The output channel is inactive.

The timed mode activates an output when a set
point or ‘trigger’ condition is reached. Once active,
the output is held for a specified delay period. The
delay may be between 0.01 and 599.99 seconds

The output w ill activate when the specified value is

encountered (SP1 for output 1, SP3 for output 2).
If a timing period is in progress, a ne w trigger does
not occur. This is referred to as a non­retriggereable timer.

A RESET will cancel the timed out

The latch mode activates an output when a ‘trigger’
or set point is reached.

The output will activate when the value is
encountered (SP1 for output 1, SP3 for output 2).
Once activat ed, the output is held and can be
deactivated only when the speci
condition is met. The Latched Until conditions can
be seen in Tab l e 10.

put.

fied Latched Until

.

Boundary Output

The Boundary mode differs from the other output

types in that it a llows the counter to have an output
activate/deactivate automatically within a specified
range.

Boundar y mode acti vat

count is between the specified low and high set
points (SP1/SP2 for output 1, SP3/SP4 for output

2.)

es an output when the

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Latch Until Description

Reset

SP#

RstP os

A front panel or external reset ev ent is required
to deactivate the output.

Output deactivated when set point is
encountered.

Output deactivated when reset position is
encountered.

Table 10. Latch Until

NOTE: The outputs for this counter activate regardless of count direction in
all count modes.

1) To set the Output Control modes, enter the Programming Mode, and press
until the oput 1 setup menu category is reached.

2) Press to continue to the Parameter Name mmode1. The display will flash

ENTER

between mmode1 and the default value of latch. When the display shows latch,
press

3) Use the arrow keys to select the correct mode. Press when the correct mode

ENTER

ENTER

is selected to accept value, and to the next parameter, Output 1 Bindings. Other
choices may appear, depending on which Output 1 Mode is selected. See Ap­pendix B for which options correspond to which parameters.

4) Press until oput 2 setup is displayed to make similar selections for Output 2

ENTER

Mode.

5) When all selections are entered and accepted into counter memory, counter will
proceed to next menu category, Set Point Setup.

4.5 Set Point Parameters (Set Point Setup)

The S661 has four set point parameters and an Offset Value.

SP1 and SP2 are used only with Output 1, and SP3 and SP4 are used only with Out­put 2.

The SP1 and SP3 parameters are used as Latched or Timed “trigger” values. When a
Boundary Output is selected, SP1 and SP3 become the low boundary value.

The SP2 and SP4 parameters are used as high boundary value or ‘turn-off’ values
when used with other alarm types (i.e. latched until SP4).

The values for all set points are -99999 to 999999. The decimal point will appear ac­cording to the current decimal point setting.

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Set Point Parameters

1) To set the Set Point parameters, enter the Programming Mode, and press un­til the setpnt setup menu category is reached.

2) Press to continue to the Parameter Name sp 1. The display will flash between
sp 1 and the default value of 000010. When the display shows 000010, press

3) Use the arrow keys to enter the correct value of the flashing digit. Use the
key to advance to the next digit. Press when the correct set point is select-

ENTER

ENTER

RESET

ENTER

ed to accept value and proceed to the next parameter, SP 2.

4) Repeat these steps for SP 2, SP 3, and SP 4. The counter will proceed to the
next menu category, Reset Setup.

4.6 Miscellaneous Controls

1) To access the Miscellaneous Controls, enter the Programming Mode, and press

until the reset setup menu category is reached.

2) Press to continue to the Parameter Name rstbtn. The display will flash be­tween rstbtn and the default value of enable. When the display shows enable,
press

3) Use the arrow keys to select either Enable or Disable. Press when the cor­rect mode is selected to accept selection.

4) The display will now show end. If you are finished programming the S661, press

If not, press the arrow keys to back up to the necessary parameter.

ENTER

ENTER

ENTER

ENTER

rStbtn

(Reset Button)

The Reset button Inhibit feature disables the front

panel reset button. This can be used to prevent

accidental resets. The external (rear panel )

hardware reset input is not affected by this setting.

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Appendix A: Technical Specifications
A.1 Functional Specifications

Count modes supported

Count Inputs

Miscellaneous inputs

Maximum count rate

Min pulse width

Rate modes suported

Frequency accuracy

(instantaneous)

Frequency vs

temperature

Frequency vs time

(aging)

Count/Direction, Add-Add, Add-Subtract,
Subtract-Subtract, Quadrature, Batch, and Rate

2: Channel A (Primary) and Channel B
(Secondary/Dir control)

2: Reset (Alarm Reset) and User (Display Hold)

30 Khz (Standard and Quadrature X1 modes)

7.5 Khz (Quadrature X4 mode)

2 uS (

See Ta b l e 8

> ± 0.02% of reading

+ 0.0001% of reading per °C

± 0.002% of reading per year

Standard mode)

Display Digits

Display Decimal Point

Display LEDs

Display Range

Output channels

Output modes

Delay times

Output Response time

Multi-tasking Operatio n

6-digit, 7-segment with leading zero blanking

User-programm a ble

Red 0.56" (

- 99,999 to + 999,999 (Independent of decimal
position)

2, with front panel indicator for each

Disabled, Timed, Latching and Boundary

0.01 to 599.99 sec tol: -2.5 ms/+15ms

Within 10 ms of reading update (see rat

Count and output control maintained while in
Programming mode.

14.2mm), high efficiency

e modes)

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A.2 Electrical, Environmental and Mechanical Specifications

Power Requirements

Power Consumption

Reset Input Signal

Storage Temperature

Operating Temperature

Relative Humidity

Bezel

Panel Cutout

Case Depth

Weight

AC Supply: 120 or 240 VAC, ±10%

3VA

Active Low: 0.2 VDC = active

-10 to 60°C

0 to 40°C

0 to 80% for temperatures less than 32°C,
decreasing linearly to 50% at 40°C. (Non­condensing)

3.93" x 2.04" x 0.52" (99.8 x 51.8 x 13.3mm)

3.62" x 1.77" (92 x 45 mm) 1/8 DIN

3.24" (82mm)

9.0 oz. (255.1g)

Standard input module

Input Channels

Count edge

Input Sources

Input Impedance

A & B channels

User Channel

Low pass filter

A, B and User

High to low transition (A and B channels)

Switch contact, CMOS or TTL logics, PNP or NPN
devices

Sinking: 10K, 5% Res. Pull-up to (9.0 - 16 VDC) ±10%
Sourcing: 5.1K, 5% Res. Pull-down to common

Input Thresholds

Low Bias mode:VLT = 1.6V ±10% VUT = 3.6V ±10%
High Bias mode:VLT = 5.0V ±10% VUT = 7.0V ±10%

VLT = 0.2V (min) VUT = 3.0V (max)

Frequency < 200Hz (0 to 10V input square wave at

50% duty cycle)

Max voltage

A, B and User channels 30VDC maximum sustained

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Quadrature input module

Input
Channels

Input
Inversion

Operation
modes

Input
Sources

Input
Impedance

A & B
channels

A, B and User

User-selectable input polarity. A and B channel polarity

selective in standard mode only .

Standard, Quadrature X1 and Quadrature X4

Switch contact, CMOS or TTL logics, PNP or NPN
devices quadrature (single-ended) encoders

Sinking: 10K, 5% Res. Pull-up to (9.0 - 16 VDC) ±10%
Sourcing: 5.1K,

Low Bias mode:VLT = 1.6V ±10%VUT = 3.6V ±10%
High Bias mode:VLT = 5.0V ±10% VUT = 7.0V ±10%

5% Res. Pull-down to common

Input Thresholds

User Channel

Low pass

filter

Max voltage

VLT = 0.9V (min) VUT = 3.15V (max)

Frequency < 200Hz (0 to 10V input square wave at
50% dut

A, B and User channels 30VDC maximum sustained

y cycle)

Single / Dual Relay Modules

Contact Rating

Mechanical Life

5 Amps 250 VAC

1,000,000 cycles

Isolated 12V Excitation Module

Exitation Output

Exitation Isolation

100 mA at 12 VDC ±5%

1500 V

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Appendix B: Programming Quick Reference

If you are unfamiliar with navigating menus in the S661 see section 3. Each param­eter is listed in the order of appearance in the menu system. Refer to the paragraph
indicated in the Tech Note column for technical details on a particular parameter.

Tip: Photocopy these pages to mark settings on.

Menu

Category

Parameter

Name

PASS 000

ACCESS<—

CHPASS 000*

Choices /

Format

—>dEniEd

Description Tech

Password Entry and

Verificatio n

Password Fail

Appears if incorrect
password entered

Password Change

Appears if correct
password entered

000 = Password
protection disabled
001-099 = Secures all
parameters
100-999 = Enables
SPs/ResPos access in
display mode

Note

4.1

4.1

4.1

* = factory default settings

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Menu

Category

Parameter

Name

Choices /

Format

Description Tech

Note

inPut
SEtuP

rAtE
SEtuP

A CHAn uP*

doWn
quAd
r quAd

b CHAn dir*

uP
doWn

MmodE MmSEC*

SEC
Mmin
Hr

SCALE 00.0000*

Chan A Mode

Select count mode of A
channel.

Chan B Mode

Select count mode for B
channel.

Note: If A channel set to

Quad or Rquad, this item

is not accessible.

Rate Mode

Defines the prescaling

and sampling interval for
frequency compu ta tion

Scale

Set Display Value (Rate)
scaling multip lie r.

Values: -9.9999 to 9.9999

4.2

4.2

4.3

4.

3

* = factory default settings

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Menu

Category

Parameter

Name

Choices /

Format

Description Tech

Note

oPut 1
SEtuP

dP 000000*

000000.

00000.0

0000.00

000.000

00.0000

0.00000

oFFSEt 000000*

MmodE 1 diSAbL

timMEd
LAtCH*
bound

DP

Display Value 2 (Rate)
Decimal Point location.
Affects appearance of
Offset and Set Point
parameters.

Offset

Set Display Value 2
(Rate) scaling offset.

Values: -99999 to

999999. A decimal point
will appear according to
the user-programmedDP
position.

Output 1 Mode

Set the mode of
operation for Output 1.
Can be disabled, timed,
latched or boundary
mode.

4.3

4.3

4.4

* = factory default settings

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Menu

Category

Parameter

Name

Choices /

Format

Description Tech

Note

oPut 2
SEtuP

SP1=Lo<—

dELAY1 010.00*

MmodE2 diSAbL

SP3=Lo<—

—>SP2=hi

timMEd
LAtCH*
bound

—>SP4=Hi

Output 1 Bindings

Reminder message
indicates which and how

the set points are used
for comparison.

Delay 1

Output 1 delay time.

Appears only if Output 1

mode set to timed.

Output 2 Mode

Set the mode of operation
for Output 2. Can be
disabled, timed, latched
or boundary m

Output 2 Bindings

Reminder message
indicates which and how

the set points are used
for comparison.

ode.

4.4

4.4

4.4

4.4

* = factory default settings

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Menu

Category

Parameter

Name

Choices /

Format

Description

Tech

Note

SEtPnt
SEtuP

dELAY 2 010.00*

SP1 000010*

SP2 000020 *

Delay 2

Output 2 delay time.

Appears only if Output 2
mode set to timed.

SP1

Set point #1 Low. Values:

-99999 to 999999.

Decimal point will appear

according to the current

DP setting.

SP2

Set point #1 High. Values:

-99999 to 999999.

Decimal point will appear

according to the current

DP setting.

4.4

4.5

4.5

* = factory default settings

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Menu

Category

Parameter

Name

Choices /

Format

Descriptio n Tech

Note

rESEt
SEtuP

END

SP3 000030*

SP4 000040*

rStbtn EnAbLE*

diSAbL

SP3

Set point #2 Low.

Values: -99999 to

999999. Decimal point

will appear according to
the current DP setting.

SP4

Set point #2 High.

Values: -99999 to

999999. Decimal point

will appear according to
the current DP setting.

Reset Button

Enable or disable front
panel reset button.

Exit Programming
Me

nu

4.5

4.5

4.6

* = factory default settings

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