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 specications.
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 dened 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 qualied technician.
The S664 frequency 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.
One of four frequency ranges may be selected to measure from 1Hz to 35KHz.
The counter accepts pulses from different types of sensors, including Quadrature, CMOS or TTL circuits and PNP or NPN devices.
An optional 12 VDC (100mA) excitation output module can provide power for
external sensors.
The S664 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.
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 congure 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.
Coupez l’alimentation avant de raccorder les modules optionnels.
The AC power module allows the S664 to be
operated from standard 50/60 Hz line power.
The power module will be congured 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 Range
Select. 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
Primary Input
Connect the input signal to A INPUT and COMMON
Program Step
Used only in special programming mode
Secondary Input
Direction Control or count pulse input
Figure 6. Standard Input Module
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Figure 7. Standard Input Module Default Settings
DIP switch SW1, gure 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 congure channel B, while switches
4-6 congure channel A. These switches select bias (threshold voltages), low pass lter (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 gure 8 and gure 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 (switches 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 S664, this input serves as a
secondary channel (Rate) hard-wired reset. This may be used, for example, to reset latched
alarm outputs that have been assigned to rate.
The S664 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)
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 the A, B, and User input signals.
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. In both modes, the state of the User input signal can
be selected as active high or active low. DIP switch SW1 congures the counter to match the
specications of the accompanying sensor. When shipped from the factory, the counter is set
for X1 quadrature, as shown in Figure 10 and Table 3:
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 encod ers 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 gures 8, 8a, 11 and 12.
Display Over Range: The displayed count is too
large for the counter to display. Since the internal
count buffer is much larger than the display, the
counter will maintain accurate frequency well
beyond the display value.
Watchdog Fault: The counter did not experience
an orderly power-down. This can happen by
exceeding the maximum allowable count speed for
a sustained period of time.
Action
Required
Reset
Counter
Reset
Counter
3.3 Rate (Frequency) Scaling and Display
The S664 can measure frequencies ranging from 1.00 Hz to 35 KHz. The frequency scale is selected according to Table 4. The frequency range is selected
by using a wire or switch across the RESET and COMMON terminals on the
rear of the counter. The range prompt (scl 1) will toggle each time the contact is
made.
Range
scl1
scl2
scl3
scl4
Typical
Update
Period
1.0 sec3.0 sec1.00 Hz99.99 Hz
1.0 sec2.0 sec1.6 Hz999.9 Hz
0.5 sec1.0 sec4 Hz9999 Hz
0.5 sec1.0 sec0.01 KHz35.00 KHz
Max
Update
Period
Min.
Input
Frequency
Max.
Input
Frequency
Comments / Typical Application
1/100 Hz resolution / measure
signals less than 100 Hz.
1/10 Hz resolution / measure
signals less that 1 KHz
1 Hz resolution / measure signals
less than 10 KHz
0.01 KHz resolution / measure
signals in KHz
Table 4. Frequency Scale Selection
Frequency can also be displayed as a signed entity and will be negative according to the direction control. (See section 3.4.)
The A channel input is a pulse source. This signal must be limited to under 35
KHz. This corresponds to a minimum pulse width of 28.57 microseconds. The
signal does not need an even duty cycle (On vs. Off time) as long as a minimum
(high or low) of 1 microsecond is maintained (See figure 15).
Tp (Minimum)
1 us
1 us
Figure 15. Input Pulse Definition
The B Channel acts as a direction control. If the B input is in the active state,
frequency will be displayed as a negative number. When using the quadrature
input card (in quadrature mode), A and B encoder signals are translated to Pulse
and Direction signals internally.