Technical Specifications
A-4
IM 178-4
C79000-G7076-C178-01
A.1
Technical Data of the IM 178-4
Dimensions and Weight
Dimensions W x H x D
(mm)
80 x125 x120
Weight
approx. 460 g
Voltages, Currents, Potentials
Auxiliary voltage 1L+/M
S
Range
S
Reverse polarity
protection
S
Electrical isolation
1L+
20.4 to 28.8 V
no
yes from DP
interface and
2L+/2M
Load voltage 2L+/2M
S
Range
S
Reverse polarity
protection
S
Electrical isolation
Sensor power supply 5.2 V
S
Output voltage
S
Output current
Sensor power supply 24 V
S
Output voltage
S
Output current
2L+
20.4 to 28.8 V
no
yes, from DP
interface and 1L+/M
5.2 V
±
5%
max. 600 mA,
short-circuit proof
1L+ – 0.8 V
max. 500 mA,
short-circuit proof
Current consumption
S
from 1L+ (no load)
S
from 2L+ (no load)
approx. 135 mA
approx. 5 mA
Power dissipation of the
module
approx. 7 W
Status, Interrupts,
Diagnostics
Status display
yes, 13 green LEDs
for Status
Diagnostic functions
S
Fault display on module
for group fault
S
Fault display on module
for bus fault
S
Diagnostic information
readable
yes
yes, red LED
yes, red LED
yes
Specifications of the Inputs and Outputs
Sensor inputs
Position detection
Signal voltages
Data transfer rate and cable
length for absolute position
encoders (shielded)
Input frequency and cable
length for incremental enco-
ders with 5 V supply (shiel-
ded)
Input frequency and cable
length for incremental enco-
ders with 24 V supply
(shielded)
Input signals
S
incremental
S
absolute
incremental
1)
,
absolute
symmetrical inputs:
5 V to RS 422
S
at 125 kHz
max. 320 m
S
at 250 kHz
max. 160 m
S
at 500 kHz
max. 60 m
S
at 1 MHz
max. 20 m
max. 1 MHz at 32 m
max. 1 MHz at
100 m
2 pulse trains, 90
°
shift, 1 zero pulse
SSI frame