Rockwell Automation 1738-VHSC24M23 ArmorPoint 24V dc Very High Speed Counter Module, Series A - Manual (Page 17)

Publication 1738-IN011B-EN-E - August 2013
ArmorPOINT 24V DC Very High Speed Counter Modules, Series A 17
Specifications Following are specifications for the 1738 ArmorPOINT Very High Speed
Counter Module.
ArmorPOINT 1738-VHSC24M23 Module
Input Specifications
Inputs per Module
1 – 1 group of A/A return, B/B return and Z/Z return
Input Voltage 15...24 V DC
Input Current 6.1 mA @ 15V DC
10.2 mA @ 24V DC
Input OFF-State Voltage <1.8V DC
Input OFF-State Current, max <0.250 mA
Input ON-State Voltage >12.5V DC
Input ON-State Current >5 mA
Maximum ON-State Voltage Refer to derating curve below.
Input Filter Selections Off
10
μ
s
100
μ
s
1.0 ms
10.0 ms
Maximum Input Frequency 1.0 MHz counter and encoder X1 configurations
500 kHz encoder X2 configuration (no filter)
250 kHz encoder X4 configuration (no filter)
Output Specifications
Outputs per Module 1 isolated group of 2 capable of 0.5 A @ 24V DC
Output Control Outputs can be tied to any of 4 compare windows
Output Supply Voltage Range 10...28.8V DC
OFF-State Leakage Current <0.5 mA
ON-State Voltage Drop <0.3V DC @ 0.5 A
ON-State Current, max 0.5 A
Short Circuit Current 6A – short circuit detected when the output is turned on. Outputs are short-circuit
protected and either cycle until the fault is corrected, or latch off (depending on
programming).
Open Wire Detection Open wire is detected when output is turned off
Delay Time
OFF to ON
ON to OFF
25
μ
s (load-dependent)
150
μ
s (load-dependent)
Keyswitch Position 2
General Specifications
LED Indicators 1 yellow input status, logic side
1 yellow/red output status, logic side
1 green/red network status, logic side
1 green/red module status, logic side
PointBus Current, max 180 mA
Power Dissipation, max 1.9 W @ rated load
Thermal Dissipation, max 6.5 BTU/hr @ rated load
Isolation Voltage
(continuous-voltage withstand rating)
50V rms
Tested @ 1250V AC rms for 60s
External DC Power (does not represent power
required to supply outputs) No additional external power required to power module