Installation Instructions Multi-Channel High-Speed Counter 1746-HSCE2 Inside For More Information ..............2 Compliance to European Union Directives .........3 Hazardous Location Considerations ..........4 Environnements dangereux............4 Hardware Features ...............5 LEDs ....................6 Prevent Electrostatic Discharge ...........6 Setting the Jumpers ..............7 Installing the Module ..............8 Important Wiring Considerations..........9...
Multi-Channel High-Speed Counter For More Information As part of our effort to preserve, protect, and improve our environment, Allen-Bradley is reducing the amount of paper we use. Less paper means more options for you. In addition to traditional printed publications and CD-ROM versions, we now offer on-line materials with the most up-to-date information you can get.
Multi-Channel High-Speed Counter Compliance to European Union Directives If this product has the CE mark, it is approved for installation within the European Union and EEA regions. It has been designed and tested to meet the following directives. EMC Directive This product is tested to meet Council Directive 89/336/EEC Electromagnetic Compatibility (EMC) and the following standards, in whole or in part, documented in a technical construction file:...
Multi-Channel High-Speed Counter Hazardous Location Considerations This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D, or non-hazardous locations only. The following ATTENTION statement applies to use in hazardous locations. EXPLOSION HAZARD WARNING • Substitution of components may impair suitability for Class I, Division 2.
Multi-Channel High-Speed Counter Hardware Features The module’s hardware features are illustrated below. COUNTER Output Status LEDs OUTPUT STATUS Running Status LED Input Status LEDs Fault Status LED INPUT STATUS HSCE2 Input and Output Terminals Publication 1746-IN002A-US-P...
Multi-Channel High-Speed Counter LEDs The front panel has a total of twelve indicator LEDs. Color Indicates 0 OUT Green ON/OFF status of real output 1 OUT Green ON/OFF status of real output 2 OUT Green ON/OFF status of real output 3 OUT Green ON/OFF status of real output...
Multi-Channel High-Speed Counter Setting the Jumpers Six jumpers are located in a row on the side of the module. Use the jumpers to select the input voltage for each of the inputs A1, B1, Z1, A2, B2, and Z2. The settings are shown in the figure below.
Multi-Channel High-Speed Counter Installing the Module ATTENTION Disconnect power before attempting to install, remove, or wire the module. 1. Make sure your SLC power supply has adequate reserve current capacity. The module requires 250 mA at +5V dc. 2. Align the full-sized circuit board with the chassis card guide as shown below. The first slot of the first chassis is reserved for the processor.
Do not ground them to the junction box. Considerations for Reducing Noise In high noise environments, the 1746-HSCE2 inputs may accept “false” pulses, particularly when using low frequency input signals with slowly sloping pulse edges. To minimize the effects of high frequency noise on low frequency signals, the user can do the following: •...
Multi-Channel High-Speed Counter Removing the Terminal Block Remove the terminal block by turning the slotted terminal block release screws counterclockwise. The screws are attached to the terminal block, so the block will follow as the screws are turned out. ATTENTION To avoid cracking the removable terminal block, alternate removal of the slotted terminal block release screws.
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Multi-Channel High-Speed Counter Differential Encoder Wiring Cable +VDC Power Suppl A(+) A(–) B(+) Allen-Bradley B(–) 845H Series Z(+) differential Z(–) encoder Shield Earth shield/housing Connect only if housing is electronically Module Inputs isolated from the motor and ground. Refer to your encoder manual for proper cable type. The type of cable used should be twisted pair, individually shielded cable with a maximum length of 300m (1000 ft.).
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Multi-Channel High-Speed Counter Single-Ended Encoder Wiring (Open Collector) cable +VDC Power Supply A(+) A(–) B(+) Allen-Bradley B(–) 845H Series Z(+) single-ended Z(–) encoder shield shield/housing Earth Connect only if housing is electronically Module Inputs isolated from the motor and ground. Refer to your encoder manual for proper cable type.
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Multi-Channel High-Speed Counter Single-Ended Wiring (Discrete Devices) Power +VDC Supply proximity sensor A(+) A(–) solid-state B(+) switch B(–) Z(+) Z(–) photoelectric sensor with open collector sinking output Module Inputs External resistors are needed if not internal to the sensor. Check your sensor’s documentation. The pull-up resistor (R) value depends on the power supply value.
Multi-Channel High-Speed Counter Electronic Protection The electronic protection of the 1746-HSCE2 has been designed to provide protection for the module from short-circuit and overload current conditions. The protection is based on a thermal cut-out principle. In the event of a short circuit or overload current condition on an output channel, all channels turn off within milliseconds after the thermal cut-out temperature has been reached.
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Multi-Channel High-Speed Counter Short-Circuit/Overload Current Diagnostics If a short-circuit or overload current condition occurs on an output channel: 1. The FLT LED flashes, provided that power is applied to the module. 5V dc via backplane and load power via an external supply is required. 2.
Multi-Channel High-Speed Counter Specifications General Operating Temperature 0°C to +60°C (+32°F to +140°F) Storage Temperature -40°C to +85°C (-40°F to 185°F) Humidity 5 to 95% without condensation Backplane Current Consumption 250 mA at +5V dc (power supply loading) 0 mA at +24V dc Backplane Isolation 1000V dc Maximum Cable Length...
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Multi-Channel High-Speed Counter Inputs A, B, and Z Jumper Setting 5V dc 24V dc Nominal Input Voltage 5V dc 24V dc Input Voltage Range 4.2V dc to 12V dc 10V dc to 30V dc On-State Voltage (min.) 4.2V Off-State Voltage (max.) 0.8V Maximum Off-state Leakage 100 µA...
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Multi-Channel High-Speed Counter Outputs (sourcing) Max. On-State Output Current (per 1.0 A at 40°C channel) 1.0 A at 60°C Max On-State Current (per module) 2.0 A at 40°C 1.5 A at 60°C Max. On-State Voltage Drop 0.5V Max. Off-State Leakage Current 100 µA Isolation (from backplane) 1000V...
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