Specifications

40
Characteristics (continued)
Advantys STB
Distributed I/O Solution 1
Counter Module
Characteristics
Electrical characteristics
Module Type STB EHC 3020
Frequency on counting inputs
kHz 1 channel max. 40
Hot swapping supported
Yes
Mounting base
STB XBA 3000
PDM Power distribution
module required
Voltage provided
V 24
Reference
STB PDT 3100
Consumption on the logic
bus
c 5 V mA 60 typical, 140 max.
Isolation Between island bus and I/O
c V 500
Characteristics of Inputs
Input type Counting inputs (IN A and IN B) Auxiliary inputs (EN and RST)
Nominal values Voltage
c V 24 (limits 19.2…30 V)
Current
mA 6
Limit values At state 1
c 11…30 V, min. 2 mA current (at c 11 V)
At state 0
c - 3…5 V, max. 1.5 mA current
Logic
Positive
Filter time Analog
µs 2.5 25
Digital
ms None (max. count 40 kHz)
0.40 (max. count 1 kHz)
1.20 (max. count 400 kHz)
–
Characteristics of Outputs
Output type OUT 1 and OUT 2 outputs
Rated power voltage
c V 24 (limits 19.2…30 V)
Nominal current
A 0.5 (1 A per module)
Logic
Positive (by default), positive on 1 or 2 channels, negative on 1 or 2 channels (configurable)
Response Time
See functional characteristics, page 39
Leakage current At state 0
mA max. 0.1
Voltage drop At state 1
V max. 3
Max. load inductance
Henry 0.5 at 4 Hz, or L = 0.5/I
2
x F where L: load inductance, I: load-in current, and
F: switching frequency
Short circuit and overload
protection
Type per channel
By current limiter (1.1 A typical/1.5 A max.) and electronic tripping (manual or automatic reset)
Default fallback positions Default
Set to 0 state for both channels
Configured
Maintain at value, set to state 0 or 1 for each channel
P
resentation:
p
age 38
Description:
page 38
References:
page 41
Dimensions:
page 41
Wiring:
page 41