PBLPT400 Datasheet APLPT500, APLPT400, PBLPT500 | P4-P6

EMC INSTALLATION GUIDELINES

Although this unit is designed with a high degree of immunity to

ElectroMagnetic Interference (EMI), proper installation and wiring methods

must be followed to ensure compatibility in each application. The type of the

electrical noise, source or coupling method into the unit may be different for

various installations. In extremely high EMI environments, additional measures

may be needed. Cable length, routing and shield termination are very important

and can mean the difference between a successful installation or a troublesome

installation. Listed below are some EMC guidelines for successful installation

in an industrial environment.

1. The unit should be mounted in a metal enclosure, that is properly connected

to protective earth.

a. If the bezel is exposed to high Electro-Static Discharge (ESD) levels, above

4 Kv, it should be connected to protective earth. This can be done by making

sure the metal bezel makes proper contact to the panel cut-out or connecting

the bezel screw with a spade terminal and wire to protective earth.

2. Use shielded (screened) cables for all Signal and Control inputs. The shield

(screen) pigtail connection should be made as short as possible. The

connection point for the shield depends somewhat upon the application.

Listed below are the recommended methods of connecting the shield, in order

of their effectiveness.

a. Connect the shield only at the panel where the unit is mounted to earth

ground (protective earth).

b. Connect the shield to earth ground at both ends of the cable, usually when

the noise source frequency is above 1 MHz.

c. Connect the shield to common of the unit and leave the other end of the

shield unconnected and insulated from earth ground.

3. Never run Signal or Control cables in the same conduit or raceway with AC

power lines, conductors feeding motors, solenoids, SCR controls, and

heaters, etc. The cables should be run in metal conduit that is properly

grounded. This is especially useful in applications where cable runs are long

and portable two-way radios are used in close proximity or if the installation

is near a commercial radio transmitter.

4. Signal or Control cables within an enclosure should be routed as far away as

possible from contactors, control relays, transformers, and other noisy

components.

5. In extremely high EMI environments, the use of external EMI suppression

devices, such as ferrite suppression cores, is effective. Install them on Signal

and Control cables as close to the unit as possible. Loop the cable through the

core several times or use multiple cores on each cable for additional protection.

Install line filters on the power input cable to the unit to suppress power line

interference. Install them near the power entry point of the enclosure. The

following EMI suppression devices (or equivalent) are recommended:

Ferrite Suppression Cores for signal and control cables:

Fair-Rite # 0443167251 (RLC #FCOR0000)

TDK # ZCAT3035-1330A

Steward #28B2029-0A0

Line Filters for input power cables:

Schaffner # FN610-1/07 (RLC #LFIL0000)

Schaffner # FN670-1.8/07

Corcom #1VB3

Corcom #1VR3

Note: Reference manufacturer’s instructions when installing a line filter.

6. Long cable runs are more susceptible to EMI pickup than short cable runs.

Therefore, keep cable runs as short as possible.

WIRING CONNECTIONS

As depicted in the drawing showing the rear view of the Apollo Process Time

Indicator, there is a terminal block where all wiring connections are made. All

conductors should meet voltage and current ratings for each terminal. Also

cabling should conform to appropriate standards of good installation, local

codes and regulations. It is recommended that power supplied to the unit (AC

or DC) be protected by a fuse or circuit breaker. Remove the block for easy

access to the terminal screws. To remove the block, pull from the back of the

block until it slides clear of the terminal block shroud.

Enclosed with the PBLPT module is an adhesive backed label(s) showing the

terminal block pin-out. This label is for wiring reference only, do not use for

specifications. This label should be applied to the appropriate location by the user.

CAUTION: The terminal block should NOT

be removed with power

applied to the unit. The module should not be removed from the

LDD with power applied to the LDD or the module.

INPUT & POWER CONNECTIONS

Primary AC power is connected to Terminals 1 and 2 (marked A.C. Power,

located on the left-hand side of the block). For best results, the AC power should

be relatively “clean” and within the specified ±10% variation limit. Drawing

power from heavily loaded circuits or from circuits that also power loads that

cycle on and off should be avoided.

Terminal 3 is the “DC” (+12 V) terminal. This terminal is for sensor supply

and can provide up to 100 mA of current. An external +11 V to +14 VDC can

also be applied to this terminal to power the unit in the absence of A.C. power.

Terminal 4 is the “COMM.” (common) terminal, which is the common line to

which the sensor and other input commons are connected. Terminal 5 is the

“SIG. IN” (signal in) terminal. When the signal at this terminal goes low, a

count will be registered in the unit. (See “Input Ratings” under

“Specifications” section.)

REAR PANEL DIP SWITCHES

As can be seen from the rear of the unit, there is a row of 14 DIP switches

located beside the input and power terminal block. All of these DIP switches are

Display Multiplier Increment Total (DMIT) switches. When the switch is “ON”,

it will multiply the measured time between input pulses by the display multiplier

it represents.

INSTALLATION ENVIRONMENT

The unit should be installed in a location that does not exceed the maximum

operating temperature and provides good air circulation. Placing the unit near

devices that generate excessive heat should be avoided.

The bezel should be cleaned only with a soft cloth and neutral soap product.

Do NOT use solvents.

Continuous exposure to direct sunlight may accelerate the aging process of

the bezel.

INSTALLATION

PBLPT installation information is contained in the LDD Bulletin. Refer to

that bulletin for instructions on installing the module.

The unit meets NEMA 4/IP65 requirements for indoor use, when properly

installed. The Apollo Indicators are intended to be mounted into an enclosed

panel with a gasket to provide a water-tight seal. Two mounting clips and

screws are provided for easy installation. Consideration should be given to the

thickness of the panel. A panel which is too thin may distort and not provide a

water-tight seal. (Recommended minimum panel thickness is 1/8".)

After the panel cut-out has been completed and deburred, carefully slide the

panel gasket over the rear of the unit to the back of the bezel. Insert the unit into

the panel. As depicted in the drawing, install the screws into the narrow end of

the mounting clips.

Thread the screws into the clips until the pointed end just protrudes through

the other side. Install each of the mounting clips by inserting the wide lip of the

clips into the wide end of the hole,

located on either side of the case. Then

snap the clip onto the case.

Tighten the screws evenly to apply

uniform compression, thus providing a

water-tight seal.

CAUTION: Only minimum pressure is

required to seal panel. Do NOT

overtighten screws.

CONNECTIONS & CONFIGURATION SWITCH SET-UP FOR VARIOUS SENSOR OUTPUTS

MAGNETIC PICKUPS SENSORS WITH CURRENT SINK OUTPUT (NPN O.C.)

[Includes ASTC, LMPC, PSAC, RPGC, (RPGB, RPGH) * , LSC]

SENSORS WITH CURRENT SOURCE OUTPUT (PNP O.C.)

TWO WIRE PROXIMITY SENSORS SENSORS WITH A.C. INPUTS FROM TACH. INPUT FROM CMOS & OTHER INPUT FROM TTL

-EF OUTPUT GENERATORS, INVERTERS, BI-POLAR OUTPUTS

ETC.

INPUT FROM CONTACT CLOSURES

Use 2-wire shielded cable for magnetic pickup signal leads.

BREAD BAKING APPLICATION

Loaves of bread are being baked in a continuous baking oven. It has been

determined that 10 minutes and 30 seconds is normally required for a loaf to

progress through the oven (this provides enough time for the loaves to be

baked). An RPGC, with 60 PPR, is attached to one of the conveyor belt shafts.

When the conveyor belt moves at the 10 min.-30 sec. rate, the shaft turns at 35

RPM. An APLPT5 is used to display the value of 10 min. and 30 sec. Using

the formula, the required DIP switch settings are obtained.

PPS = 60 PPR x 35 RPM = 2100 PPM ÷ 60 DMIT = D.R. x P.P.S.

PPS = 35 = 630 x 35

DR = 10 min. & 30 sec. (convert min. to sec.) DMIT = 22,050

DR = (10 min. x 60) + 30 DMIT = 22,050 ÷ 10*

DR = 630 DMIT = 2,205

* A scale multiplier of 10 is selected because a value greater than 16,383 is

required.

DIP switch 12 . . . . . - 2048 Needed = 157

DIP switch 8 . . . . . - 128 Needed = 29

DIP switch 5 . . . . . - 16 Needed = 13

DIP switch 4 . . . . . - 8 Needed = 5

DIP switch 3 . . . . . - 4 Needed = 1

DIP switch 1 . . . . . - 1

Therefore, DIP switches 1, 3, 4, 5, 8, and 12 must be turned “ON”. Also, DIP

switch 4 on the side panel must be set “ON” to get a multiplier value of 10.

DISPLAY MULTIPLIER SELECTION PROCEDURE

The APLPT/PBLPT has a Display Multiplier Selection range from 1 to

16,383. For the minimum scaled reading, the X1 DIP switch would be set to

“ON”. For the maximum scaled reading (16,383 times the measured time

between input pulses), all of the rear panel DMIT DIP switches would be turned

“ON”. Therefore, a specific Display Multiplier Increment Total is achieved by

adding up the appropriate individual display multiplier values.

Also available are four scale multiplier (SM) values of X1, X10, X100, and

X1000, which are controlled by DIP switches 4 and 5 on the side of the unit.

The X10, X100, and X1000 scale multiplier values can be used when the

required DMIT exceeds 16,383. Note: Always use the smallest SM value

possible. Below is a formula to compute the DMIT. Note: This same basic

formula applies to all units. However, for the APLPT5/PBLPT5 the D.R. must

be converted to a base unit of measurement.

DMIT = D.R. x P.P.S.

DMIT = Display Multiplier Increment Total

DR = Desired Reading (In hrs., mins., sec., days, etc.)

PPS = Pulses Per Second (input)

NOTES:

1. For the APLPT5/PBLPT5, the display value must be converted to its base

units. To do this, multiply the value to the left of the dash by 60 and add it to

the value to the right of the dash.

2. If the required DMIT value exceeds 16,383, then a scale multiplier value

greater than 1 will be needed. But always use the smallest SM possible.

EXAMPLE 1 (for APLPT4):

DESIRED READING = 18 minutes

PULSES PER SECOND = 450 pulses per second

DMIT = 18 x 450 P.P.S.

= 8100

DMIT = 8100

The required DMIT does not exceed 16,383, therefore, use a value of 1 for

the S.M.

The appropriate display multiplier switches (which together add up to 8100),

are then set to “ON”. Start by selecting the first increment which is greater than

half the desired DMIT, and add subsequent increments that are more than half

the difference needed.

DMIT = 8100

DIP switch 13 . . . . . - 4096 Needed = 4004

DIP switch 12 . . . . . - 2048 Needed = 1956

DIP switch 11 . . . . . - 1024 Needed = 932

DIP switch 10 . . . . . - 512 Needed = 420

DIP switch 9 . . . . . - 256 Needed = 164

DIP switch 8 . . . . . - 128 Needed = 36

DIP switch 6 . . . . . - 32 Needed = 4

DIP switch 3 . . . . . - 4

Therefore, DIP switches 3, 6, 8, 9, 10, 11, 12, and 13 would be set to “ON”.

Note: If the desired reading is 18.0, the SM can be set for a value of 10. (To get

the D.P. required, the unit must be powered down, then switches 7 and 8 set

appropriately, then powered back up.)

EXAMPLE 2 (for APLPT5):

DESIRED READING = 2 hours and 23 minutes (2-23)

PULSES PER SECOND = 230 pulses per second

First convert the D.R. to its base units.

D.R. = 2 (hours) x 60 + 23 DMIT = 143 x 230 PPS

= 120 + 23 = 32,890

= 143 DMIT = 32,890 ÷ 10*

DMIT = 3,289

* Since the required DMIT does exceed 16,383, a value of 10 is used for the S.M.

DMIT = 3289

DIP switch 12 . . . . . - 2048 Needed = 1241

DIP switch 11 . . . . . - 1024 Needed = 217

DIP switch 8 . . . . . - 128 Needed = 89

DIP switch 7 . . . . . - 64 Needed = 25

DIP switch 5 . . . . . - 16 Needed = 9

DIP switch 4 . . . . . - 8 Needed = 1

DIP switch 1 . . . . . - 1

Therefore, DIP switches 1, 4, 5, 7, 8, 11, and 12 would be set to “ON” for a

display of 2-23. DIP switch 4 on the side panel must be set to “ON” to obtain

the S.M. value of 10.

P1-P3 P4-P6 P7-P8

PBLPT400

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