Bulletin No. LD-K
Drawing No. LP0607
Released 05/11
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
MODEL LD - LARGE DISPLAY
2.25" & 4" HIGH RED LED DIGITS
AVAILABLE IN 4 OR 6 DIGIT VERSIONS
SINGLE OR DUAL COUNTER with RATE INDICATOR
*
PROGRAMMABLE SCALING AND DECIMAL POINTS
*
BUILT-IN BATCH COUNTING CAPABILITY
*
PROGRAMMABLE USER INPUT
*
UNIVERSALLY POWERED
DUAL 5 AMP FORM C RELAY
*
C
UL
R
US LISTED
51EB
ALUMINUM NEMA 4X CASE CONSTRUCTION
* Programmable models only
IND. CONT. EQ.
GENERAL DESCRIPTION
The Large Display is a versatile display that can be configured as a single or
dual counter with rate indication, scaling, serial communications and a dual
relay output. There are also basic models that have a single counter with
direction control only (no scaling or relay output).
The 4 & 6 digit displays are available in either 2.25" or 4" high red LED digits
with adjustable display intensities. The 2.25" high models are readable up to 130
feet. The 4" high models are readable up to 180 feet. All versions are constructed
of a NEMA 4X/IP65 enclosure in light weight aluminum.
The 6-digit programmable models have two signal inputs and a choice of
eight different count modes. These include bi-directional, quadrature and anti-
coincidence counting, as well as a dual counter mode. When programmed as a
dual counter, each counter has separate scaling and decimal point selection.
Rate indication is available on the programmable models only. The rate
indicator has separate scaling and decimal point selection, along with
programmable display update times. The meter display can be toggled either
manually or automatically between the count and rate values.
The programmable models also come with a dual Form C relay output and
RS232 or RS485 serial communications. The outputs can activate based on
either counter or rate setpoint values. An internal batch counter can be used to
count setpoint output activations.
The protective conductor terminal is bonded to conductive
parts of the equipment for safety purposes and must be
connected to an external protective earthing system.
SPECIFICATIONS
1.
DISPLAY:
2.25" (57 mm) or 4" (101 mm) intensity adjustable Red LED
2.
POWER REQUIREMENTS:
AC POWER: 50 to 250 VAC 50/60 Hz, 26 VA
DC POWER: 21.6 to 250 VDC, 11 W
DC OUT: +24 VDC @ 100 mA if input voltage is greater than 50 VAC/VDC
+24 VDC @ 50 mA if input voltage is less than 50 VDC
Isolation: 2300 V
RMS
for 1 min. to all inputs and outputs
3.
COUNT INPUT(S):
Counter(s) have DIP switch selectable pull-up (7.8 K) or pull-down
resistors (3.9 K) that determine active high or active low input logic.
Counters are DIP switch selectable for high or low frequency (Damping
capacitor provided for switch contact bounce. Limits input frequency to 50
Hz and input pulse widths to 10 msec min.)
Input A Trigger levels: V
IL
= 1.25 V max; V
IH
= 2.75 V min; V
MAX
= 28 VDC
Input B Trigger levels: V
IL
= 1.0 V max; V
IH
= 2.4 V min; V
MAX
= 28 VDC
Overflow Indication: Display “
” alternates with overflowed count value.
LD200400, LD200600, LD400400, & LD400600:
Count Rate: 25 KHz max. @ 50% duty cycle (no scaling)
LD2006P0 & LD4006P0:
Maximum Count Rates:
50% duty cycle, count mode dependent.
With setpoints disabled: 25 KHz, all modes except Quadrature x4 (23 KHz).
With setpoint(s) enabled: 20 KHz, all modes except Dual Counter (14
KHz), Quadrature x2 (13 KHz) and Quadrature x4 (12 KHz).
4.
RATE INPUT: Models LD2006P0 & LD4006P0 only
Display Range: 0 to 99999
Min Freq.: 0.01 Hz
Max Freq.: See Count Input specification
Accuracy: ±0.01%
Rate Overflow Indication: Display “
”
SAFETY SUMMARY
All safety regulations, local codes and instructions that appear in this and
corresponding literature, or on equipment, must be observed to ensure personal
safety and to prevent damage to either the instrument or equipment connected to
it. If equipment is used in a manner not specified by the manufacturer, the
protection provided by the equipment may be impaired.
Do not use this unit to directly command motors, valves, or other actuators
not equipped with safeguards. To do so can be potentially harmful to persons or
equipment in the event of a fault to the unit.
CAUTION: Risk of Danger.
Read complete instructions prior to
installation and operation of the unit.
CAUTION:
Risk of electric shock.
DIMENSIONS In inches (mm)
X
Z
PART
NUMBER
X (Length)
Y (Height)
Z (Center)
LD2004xx 12 (304.8)
4 (101.6)
4 (101.6)
8 (203.2)
12 (304.3)
Y
LD2006xx 16 (406.4)
LD4004xx 20 (508)
LD4006xx 26 (660.4)
7.875 (200) 16 (406.4)
7.875 (200) 22 (558.8)
AIR PRESSURE STABILIZATION VENT
2.25
(57.15)
1
5.
RESET/USER INPUT:
Function programmable for LD2006P0 &LD4006P0
Reset/User Input: DIP switch selectable pull-up (7.8 K) or pull-down
resistor (3.9 K) that determines active high or active low input logic.
Trigger levels: V
IL
= 1.0 V max; V
IH
= 2.4 V min; V
MAX
= 28 VDC
Response Time: 10 msec typ.; 50 msec debounce (activation and release)
6.
COMMUNICATIONS (LD2006P0 & LD4006P0 only):
RS485 SERIAL COMMUNICATIONS
Type: RS485 multi-point balanced interface (isolated)
Baud Rate: 300 to 38.4 k
Data Format: 7/8 bits; odd, even, or no parity
Bus Address: 0 to 99; max 32 meters per line
RS232 SERIAL COMMUNICATIONS
Type: RS232 half duplex (isolated)
Baud Rate: 300 to 38.4 k
Data Format: 7/8 bits; odd, even, or no parity
7.
MEMORY:
Nonvolatile E
2
PROM retains all programming parameters and
count values when power is removed.
8.
OUTPUT (LD2006P0 & LD4006P0 only):
Type:
Dual Form C contacts
Contact Rating:
5 amps @ 120/240 VAC or 28 VDC (resistive load), 1/8
H.P. @ 120 VAC (inductive load)
Life Expectancy:
100 K cycles min. at full load rating. External RC snubber
extends relay life for operation with inductive loads.
Response Time:
Turn On or Off: 5 msec max.
Isolation to Input & User/Exc Commons:
2000 Vrms for 1 min.
Working Voltage: 240 Vrms
9.
ENVIRONMENTAL CONDITIONS:
Operating temperature: 0 to 65 °C
Storage temperature: -40 to 70 °C
Operating and storage humidity: 0 to 85% max. RH (non-condensing)
Vibration According to IEC 68-2-6: Operational 5 to 150 Hz, in X, Y, Z
direction for 1.5 hours, 2 g’s (1g relay).
Shock According to IEC 68-2-27: Operational 30 g’s (10g relay), 11 msec in
3 directions.
Altitude: Up to 2,000 meters
10.
CONNECTIONS:
Internal removable terminal blocks are used for power and signal wiring.
Remove end plates with ¼" nut driver. For LD4 versions, all wiring is on right
side of unit. For LD2 versions, power and signal wiring connections are on
the right side and the relays and serial options are on the left side.
Wire Strip Length: 0.4" (10 mm)
Wire Gage: 24-12 AWG copper wire, 90°C rated insulation only
Torque: 5.3 inch-lbs (0.6 N-m) max.
Cable Diameter: Outside diameter must be 0.181" (4.6 mm) to 0.312" (7.9
mm) to maintain NEMA 4 rating of cord grips.
11.
CERTIFICATIONS AND COMPLIANCES:
SAFETY
UL Listed, File # E137808, UL508, CSA C22.2 No. 14-M95
LISTED by Und. Lab. Inc. to U.S. and Canadian safety standards
Type 4X Enclosure rating, UL50
IEC 61010-1, EN 61010-1: Safety requirements for electrical equipment for
measurement, control, and laboratory use, Part 1.
IP65 Enclosure rating, IEC 529
ELECTROMAGNETIC COMPATIBILITY
Emissions and Immunity to EN 61326: Electrical Equipment for Measurement,
Control and Laboratory use.
Immunity to Industrial Locations:
Electrostatic discharge
EN 61000-4-2
Criterion A
4 kV contact discharge
8 kV air discharge
Criterion A LD200400
Criterion B LD2006P0
10 V/m
Criterion A
2 kV power
1 kV signal
Criterion A
1 kV L-L,
2 kV L&N-E power
Criterion A
3 V/rms
Criterion A
0.5 cycle
Electromagnetic RF fields
EN 61000-4-3
Fast transients (burst)
EN 61000-4-4
Surge
EN 61000-4-5
RF conducted interference
Voltage dip/interruptions
EN 61000-4-6
EN 61000-4-11
Emissions:
Emissions LD200400
EN 55011
Class B
Emissions LD2006P0
EN 55011
Class A
Notes:
1. Criterion A: Normal operation within specified limits.
2. Criterion B: Temporary loss of performance from which the unit self-
recovers.
12.
CONSTRUCTION:
Aluminum enclosure, and steel side panels with textured
black polyurethane paint for scratch and corrosion resistance protection. Meets
NEMA 4X/IP65 specifications. Installation Category II, Pollution Degree 2.
13.
WEIGHT:
LD2004XX: 3.5 lbs (1.59 kg)
LD2006XX: 4.5 lbs (2.04 kg)
LD4004XX: 8 lbs (3.63 kg)
LD4006XX: 10.5 lbs (4.76 kg)
ORDERING INFORMATION
TYPE
MODEL NO.
DESCRIPTION
PART NUMBER
2.25" High 4-Digit Red LED Counter
Basic
(No front
panel keys)
LD
2.25" High 6-Digit Red LED Counter
4" High 4-Digit Red LED Counter
4" High 6-Digit Red LED Counter
Programmable
(With front
panel keys)
2.25" High 6-Digit Red LED Count/Rate Indicator w/ dual Relay Output &
RS232/RS485 Serial Communications
4" High 6-Digit Red LED Count/Rate Indicator w/ dual Relay Output & RS232/
RS485 Serial Communications
Panel Meter Plug for LD models
LD200400
LD200600
LD400400
LD400600
LD2006P0
LD4006P0
LDPLUG00
LD
LD Plug
1.0 I
NSTALLING
INSTALLATION
INSTALLATION ENVIRONMENT
THE
M
ETER
MOUNTING INSTRUCTIONS
This display is designed to
be wall mounted or suspended
from a ceiling truss or other
suitable structure capable
of supporting the LD.
Caution should be exercised
when hanging the display to
provide for the safety of
personnel. If hanging the LD,
run the suspension cables (or
chains) through the mounting
bracket holes. For wall mounting
use #10-32 size bolts.
MOUNTING HOLE (.281")
The meter meets NEMA 4X/IP65 requirements when properly installed.
The unit should be installed in a location that does not exceed the operating
temperature. Placing the unit near devices that generate excessive heat should
be avoided. The unit should only be cleaned with a soft cloth and neutral soap
product. Do NOT use solvents.
Continuous exposure to direct sunlight may accelerate the aging process of
the front overlay. Do not use tools of any kind (screwdrivers, pens, pencils, etc.)
to operate the keypad of the unit.
TERMINAL #3 (TBA)
MUST BE
CONNECTED TO
2
2.0 S
ETTING
THE
DIP S
WITCHES
SWITCH 6 (RESET/USER INPUT)
{See Note 1}
SNK.:
Adds internal 7.8 K pull-up resistor to +12VDC, I
MAX
= 2.1 mA.
SRC.:
Adds internal 3.9 K pull-down resistor, 7.2 mA max. @ 28 VDC max.
SETTING THE 8 DIP SWITCHES
To access the switches, remove the right side plate of the meter. A bank of
eight switches is located inside the unit.
Warning:
Exposed line voltage exists on the circuit boards.
Remove all power to the meter and load circuits before accessing
inside of the meter.
SWITCH 7 (POWER UP RESET)
ENABLE:
In this position, the counter resets to zero at power up.
DISABLE:
In this position, the counter does not reset at power up.
Note: This switch has no function for programmable models. Power-up reset is
selected through a programming parameter.
SWITCH 1 (Input A)
LOGIC:
Input A trigger levels V
IL
= 1.25 V max.; V
IH
= 2.75 V min.;
V
MAX
= 28 VDC
MAG:
200 mV peak input sensitivity; 100 mV hysteresis; maximum voltage:
40 V peak (28 Vrms); Must also have SRC switch ON. (Not recommended
with counting applications.)
SWITCH 8 (Input B)
DIRECTION CONTROL:
In this position Input B is used to control the
count direction of Input A when Input A is set to Count with Direction
mode (default mode).
INTENSITY ADJUST:
In this position Input B is used to adjust the
LED intensity. There are five distinct LED levels that can be changed by
pulsing Input B. After setting the desired intensity, move switch to
OFF position for Direction Control. Units with keypads can program the
LED intensity level using Programming Menu 3.
Note 1: When the DIP switch is in the SNK position (OFF), the input is
configured as active low. When the switch is in the SRC position (ON), the
input is configured as active high.
LOGIC
Input A
SNK.
HI FREQ.
Input B
SNK.
HI FREQ.
Reset/User Input SNK.
Pwr Up Reset DISABLE
Input B Direction Control
SWITCH 2 (Input A)
{See Note 1}
SNK.:
Adds internal 7.8 K pull-up resistor to +12 VDC, I
MAX
= 2.1 mA.
SRC.:
Adds internal 3.9 K pull-down resistor, 7.2 mA max. @ 28 VDC max.
SWITCH 3 (Input A)
HI Frequency:
Removes damping capacitor and allows max. frequency.
LO Frequency:
Adds a damping capacitor for switch contact bounce. Limits
input frequency to 50 Hz and input pulse widths to 10 msec.
SWITCH 4 (Input B)
{See Note 1}
SNK.:
Adds internal 7.8 K pull-up resistor to +12 VDC, I
MAX
= 2.1 mA.
SRC.:
Adds internal 3.9 K pull-down resistor, 7.2 mA max. @ 28 VDC max.
1
2
3
4
5
6
7
8
MAG.
SRC.
LO FREQ.
SRC.
LO FREQ.
SRC.
ENABLE
ON
Intensity Adjust
SWITCH 5 (Input B)
HI Frequency:
Removes damping capacitor and allows max. frequency.
LO Frequency:
Adds a damping capacitor for switch contact bounce. Limits
input frequency to 50 Hz and input pulse widths to 10 msec.
Factory Setting
3.0 W
IRING
THE
M
ETER
4. Signal or Control cables within an enclosure should be routed as far 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 # 1 VR3
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.
7. Switching of inductive loads produces high EMI. Use of snubbers across
inductive loads suppresses EMI.
Snubber: RLC# SNUB0000.
EMC INSTALLATION GUIDELINES
Although this meter is designed with a high degree of immunity to Electro-
Magnetic 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 meter may be different for various
installations. The meter becomes more immune to EMI with fewer I/O
connections. Cable length, routing, and shield termination are very important
and can mean the difference between a successful or troublesome installation.
Listed below are some EMC guidelines for successful installation in an
industrial environment.
1. The meter should be properly connected 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 meter 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 ran 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.
3
WIRING OVERVIEW
Electrical connections are made via pluggable terminal blocks located inside
the meter. All conductors should conform to the meter's voltage and current
ratings. All cabling should conform to appropriate standards of good installation,
local codes and regulations. It is recommended that the power supplied to the
meter (DC or AC) be protected by a fuse or circuit breaker. When wiring the
meter, compare the numbers on the label on the back of the meter case against
those shown in wiring drawings for proper wire position. Strip the wire, leaving
approximately 0.4" (10 mm) bare lead exposed (stranded wires should be tinned
with solder.) Insert the lead under the correct screw clamp terminal and tighten
until the wire is secure. (Pull wire to verify tightness.) Each terminal can accept
up to one #14 AWG (2.55 mm) wire, two #18 AWG (1.02 mm), or four #20
AWG (0.61 mm). Use copper conductors only, with insulation rated at 90°C.
TBA
2
3
TBC
4
5
6
1
2
3
1
2
3
4
5
6
1
TBC
TBD
Front
TBB
WIRING CONNECTIONS
Internal removable terminal blocks are used for power and signal wiring.
Access to terminal blocks is through conduit fittings. Remove end plates with
¼" nut driver. For LD4 versions, all wiring is on right side of unit. For LD2
versions, power and input wiring connections are on the right side and the relay
and serial options are on the left side.
Connect the drain wire from the shielded cable(s) to the screw on the side
plate for proper grounding.
1
LD2 Left Side
8
1
2
3
4
5
1
Front
LD4
Only programmable models
have terminals TBC and TBD.
2
3
4
5
6
7
1
2
3
4
5
1
TBD
TBA
2
3
Front
1
8
LD2 Right Side
1
2
3
4
5
6
TBB
3.1 POWER WIRING
The power wiring is made via the 3 position terminal block (TBA) located
inside the unit (right side). The DC out power is located on TBB (right side).
Power
Terminal 1: VAC/DC +
Terminal 2: VAC/DC -
Terminal 3: Protective Conductor
Terminal
+
-
1 L1
2 L2
3
TBA
DC Out Power
Terminal 4: + 24 VDC OUT
Terminal 6: User Common
4 + EXC
TBB
6 COMM
3.2 RESET/USER INPUT WIRING
The Reset/User Input is located on the right side.
Terminal 5: Reset/User
Terminal 6: Comm
Sinking Logic
Sourcing Logic
5 RESET/USER
TBB
6 COMM
DIP switch 6 OFF
5 RESET/USER
TBB
6 COMM
DIP switch 6 ON
+
-
3.3 SETPOINT (OUTPUT) WIRING
The setpoint relays use a six position terminal block (TBC) located inside the
unit: LD4 (right side) and LD2 (left side).
Terminal 1: NC 1
Terminal 2: NO 1
Terminal 3: Relay 1 Common
Terminal 4: NC 2
Terminal 5: NO 2
Terminal 6: Relay 2 Common
1 N.C. 1
2 N.O. 1
3 COMM 1
TBC
4 N.C. 2
5 N.O. 2
6 COMM 2
4
3.4 INPUT WIRING
The Large Display has two signal inputs, A and B. These inputs are wired to
terminal block TBB located inside the unit on the right side.
Terminal 1: Input A
Terminal 3: Input B
Terminal 2: Input Common
Programmable models LD2006P0 and LD4006P0 provide a choice of eight
different Count Modes. The Count Mode selected determines the action of
Inputs A and B. Section 5.1, Input Setup Parameters, provides details on count
mode selection and input action.
All other models are non-programmable and provide Count with Direction
Mode only. Input A accepts the count signal, while Input B controls the count
direction (up/down).
Input B can also be used to adjust the LED display intensity by setting DIP
Switch 8 to the ON position (See Section 2.0, Setting the DIP Switches). For
programmable models, this only applies in Count with Direction mode.
CAUTION:
User common is NOT isolated from input common. In order to preserve the safety of the meter application, the DC common must be suitably
isolated from hazardous live earth referenced voltage; or input common must be at protective earth ground potential. If not, hazardous voltage may
be present at the User Input and Input Common terminals. Appropriate considerations must then be given to the potential of the input common with
respect to earth ground.
Magnetic Pickup
ON
AC Inputs From Tach Generators, Etc.
Input A
INP A
1
MAGNETIC PICKUP
ON
Two Wire Proximity, Current Source
ON
Input A
INP A
1
AC
Input A
INP A
1
INP COMM
2
INP B
3
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
1 2 3 4
INP COMM
2
INP B
3
1 2 3 4
INP COMM
2
INP B
3
Resistor to
limit current
to 2.5 mA MAX.
1 2 3 4
2.2 kΩ
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
Current Sinking Output
Input A
ON
Current Sourcing Output
ON
Interfacing With TTL
Input A
ON
Input A
+5 V
INP A
1 2 3 4
1
NPN
O.C.
INP A
1
1 2 3 4
INP A
1
1 2 3 4
INP COMM
2
INP B
3
INP COMM
2
INP B
3
INP COMM
2
INP B
3
COMMON
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
PNP
O.C.
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
Switch or Isolated Transistor; Current Sink
ON
Switch or Isolated Transistor; Current Source
ON
Current Sink Output; Quad/Direction
ON
Input A
INP A
Input A
INP A
1
1
1 2 3 4
INP A
1 2 3 4
1
1 2 3 4
INP COMM
2
INP B
3
INP COMM
2
INP B
3
TBB
INP COMM
2
INP B
3
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
TBB
+EXC
4
RESET/USER
5
COMM
6
COMM
7
+EXC
4
RESET/USER
5
COMM
6
COMM
7
LD2006P0 and LD4006P0 only.
Shaded areas not recommended for counting applications.
*
Switch position is application dependent.
3.5 SERIAL WIRING
The serial connections are made via terminal block TBD located inside the
unit on the left side for the LD2 and on the right side for the LD4.
TXD
1
232
RXD
2
TBD
COMM
3
A
4
B
5
485
5
Microcontroller MCU
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