Specifications

Overview

This section contains specifications for the 170 ADM 850 10 Momentum I/O base.

General Specifications

module type	16 discrete inputs in 1 group 16 discrete outputs in 1 group
supply voltage	10-60 VDC
supply voltage range	10-60 VDC
supply current consumption max	500 mA at 12 VDC 250 mA at 24 VDC 125 mA at 48 VDC
power dissipation	6 W + ( ( # of input points on x .144 W) + (# of output points on x .25 W) )
I/O map	1 input word or 16 discrete inputs 1 output word or 16 discrete outputs

Isolation

input to input	none
output group to output group	none
input to output	707 VDC
logic to output	707 VDC
field to protective earth	707 VDC
input to output	707 VDC
field to communication adapter	defined by communication adapter type

Fuses

internal	none
external: operating voltage (row 1)	1 A slow-blow
external: input reference voltage (row 3)	1 A slow-blow (Bussmann GDC-1A or equivalent)
external: output voltage (row 2)	according to the supply of the connected actuators, not to exceed 8 A fast-blow.

EMC

immunity	IEC 1131-2 Surge on auxiliary power supply, 500V
emissions	EN 50081-2 (limitation A)
agency approvals	UL, CSA, CE, FM Class 1, Div. 2 pending

Physical Dimensions

width	125 mm (4.9 in)
depth (with no adapter)	40 mm (1.54 in)
length	141.5 mm (5.5 in) with or without one busbar 159.5mm (6.3in) two busbars 171.5 mm (6.75in) three busbars
weight	200 g (0.44 lb)

Discrete Inputs

number of points	16
number of groups	1
ooints per group	16
signal type	true high
IEC 1131 type	1+ (See Appendix for definitions of IEC input types.)
input voltage level
12 VDC +20%,-15% 24 VDC +25%,-20% 48 VDC +25%,-20%	>7.5 VDC On, <2.5 VDC Off >11 VDC On, <5 VDC Off >30 VDC On, <10 VDC Off
OFF state leakage current
12 VDC 24 VDC 48 VDC	1.5 mA and lower 1.5 mA and lower 1.5 mA and lower
input operating current
12 VDC ON current 24 VDC ON current 48 VDC ON current	2.3 mA 2.7 mA 2.9 mA
input voltage range	10-60 VDC
input voltage surge	75 volts peak for 10ms
response time	3.5 ms OFF to ON 5.5 ms ON to OFF

NOTE: Discrete 10-60 VDC inputs require an Input Voltage Reference (row 3 terminal block, terminals 17 and 18). The Input Voltage Reference must be the same voltage level as the voltage level as supplied to the inputs. This reference is required for the module to select the correct Turn On and Turn Off thresholds for the inputs.

Discrete Outputs

output type	solid state switch
output supply voltage	10-60 VDC
number of points	16
number of groups	1
current capacity	460 mA/point maximum up to 40 degrees C 430 mA/point from 40 degrees C to 50 degrees C 375 mA/point from 50 degrees C to 60 degrees C
signal type	true high (sourcing)
leakage current (output out)	< 1 mA @ 60 VDC
surge (inrush) current	5 A for 1 ms
on state voltage drop	< 1.0 VDC @ 0.5 A
fault sensing (See Note below.)	Outputs are electronically safeguarded to assist in short circuit and overload protection.
fault reporting	1 red LED/point (row 3) ON when short current/ overload occurs
error indication	output overload for at least one output (I/O-error) to communication adapter
response time (resistive load / 460 mA)	< 3 ms OFF to ON < 3 ms ON to OFF
maximum switching cycles	1000/h for 0.5 A inductive load 100/s for 0.5 A resistive load 8/s for 1.2 W Tungsten load

NOTE: Discrete 10-60 VDC outputs incorporate thermal shutdown and overload protection. The output current of a shortened output is limited to a nondestructive value. The short circuit heats the output driver and the output will switch off. The output will switch on again if the driver drops below the overtemperature threshold. If the short circuit still exists, the driver will reach the overtemperature condition again and will switch off again.

NOTE: Confirm that the I/O base is powered on at the same time or before the CPU is powered on. If not, the output channels may not be stable during I/O base power on.