Rockwell Automation Publication 2094-IN005H-EN-P - October 2012
Line Interface Module
17
Understanding Signal
Specifications
A description of the I/O (IOL), brake power (P1L/PSL), control power (CPL),
and auxiliary power (P2L) signals and circuit specifications is provided on the
following pages.
See the
Block Diagrams
beginning on
page 45
for your line interface modules
schematic.
I/O Signals
The 2094-AL
xx
S, 2094-BL
xx
S, and 2094-XL75S-C
x
line interface module I/O
(IOL) signals include the contactor coil, alarm contacts, status contacts, and I/O
power supply.
This table provides a description and electrical specifications for the IOL
connector signals. See
Power Specifications
on
page 52
for auxiliary contactor
specifications.
Table 13 - IOL (21-pin) Signal Specifications
(catalog numbers 2094-AL
xx
S, 2094-BL
xx
S, and 2094-XL75S-C
x
)
IOL Pin
Signal
Description
Voltage (Volts)
Current (Amps)
Min
Nom
Max
Min
Nom
Max
IOL-8
IOL-7
COIL_E2
COIL_E1
Line contactor coil connections with an auxiliary contact from the control
power circuit breaker wired in series with the contactor coil. The line
contactor is a safety contactor that includes three main contacts with three
auxiliary contacts (see the figure on
page 19
).
18
24
30
0.005
0.011
0.017
IOL-12
ALRM_COM
Non-voltage contact (ALRM_M) to indicate that CB1 is closed (make) when
CB1 is tripped. (DC)
Non-voltage contact (ALRM_B) to indicate that CB1 is closed (make) when
CB1 is not tripped.
See the figure on
page 18
. (DC)
—
—
125
—
—
1
IOL-9
IOL-11
ALRM_M
ALRM_B
[AC]
—
—
250
—
—
5
[AC]
—
—
600
—
—
2
IOL-14
IOL-13
CONSTAT_12
CONSTAT_11
Three safety-rated auxiliary contacts that are normally-closed on the line
contactor (see the figure on
page 20
).
—
24
—
—
—
10
IOL-16
IOL-15
CONSTAT_22
CONSTAT_21
IOL-18
IOL-17
CONSTAT_32
CONSTAT_31
IOL-20
IOL-19
CONSTAT_54
CONSTAT_53
One auxiliary contact (normally-open) that is not safety rated and should
not be used in a safety string.
IOL-2
IOL-4
IOL-6
IO_COM1
Power supply capable of supplying 24V @ 20 A for I/O functions and
switches. Each set of pins is capable of 8 A. To use the full rating of the
supply, all pins must be used to provide the appropriate current rating (see
the figure on
page 21
).
21.6
24
26.4
—
—
8
IOL-1
IOL-3
IOL-5
IO_PWR1
Содержание 2094-AL09
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