Specifications

Publication 1747-SG001E-EN-E - February 2013
Select SLC 500 I/O Modules 31
Process Control Modules
Blow Molding Module
This module features four independent axes of PID control plus one discrete I/O pair per
channel for channel synchronization. The 1746-BLM module provides 256 points of
resolution for each parison channel with interpolation, and has loop update times of 100
microseconds. Configurations include accumulator push-out control and three parison
axis, and two accumulator push-outs and two parison axis.
The module is designed to work in a variety of applications, including accumulator
machines, continuous extrusion machines, and reciprocating screw machines. The
module performs its servo control task independently from the processor, but receives its
configuration and run-time information from the processor.
High Speed Counter Specifications
Attribute 1746-HSCE 1746-HSCE2
Number of inputs 1 set ±A, ±B, ±Z differential or
single-ended inputs, 5V DC, 12V DC,
or 24V DC
2 sets ±A, ±B, ±Z, 2
quadrature encoders, or 4
pulse differential or
single-ended inputs
Input voltage range Differential: 0…5V DC
Single-ended: ±5V DC
5V DC: 3.8…5.5V DC
12V DC: 9.4…16.5V DC
24V DC: 16.5…30V DC
5V DC: 4.2…12V DC
24V DC: 10…30V DC
Frequency 50 kHz for range
32 kHz for rate
50 kHz for sequencer
250 kHz @ X4
500 kHz @ X2
1 MHz for all other
Maximum Counts 16-bit, ±32,768 24-bit, ±8,388,607 in Class
4
16-bit, ±32,768 in Class 1
Throughput Sequencer mode: 1.8 ms
Range mode: 3.9 ms
700 μs (typical)
Number of outputs 4 open-collector outputs:
5, 12, or 24V DC
4 outputs: 5…30V DC
sourcing with electronic
protection
Maximum output current 16 mA @ 4.5V DC
40 mA @ 10V DC
125 mA @ 30V DC
1 A
Backplane current (mA) @ 5V 320 mA 250 mA
Backplane current (mA) @ 24V 0 mA 0 mA
Isolation voltage Tested @ 1500V Tested @ 1000V
Blow Molding Module Specifications
Atttibutes 1746-BLM
Common Specifications
Backplane current (mA) @ 5V 110 mA
Resolution 14 bits
Isolation voltage Tested @ 500V DC for 60 s