M800S/M80/E80 Series Connection and Setup Manual
4 General Specifications
109
IB-1501269-J
(20) DCIN (24VDC input)
<Cable side connector type>
Connector : 2-178288-3
Contact : 1-175218-5
Recommended manufacturer : Tyco Electronics
(a) Specifications of power supply
Consider the following characteristics when selecting the stabilized power supply (prepared by machine
tool builder). Use a power supply that complies with CE Marking or that follows the safety standards given
below.
[Stabilized power supply selection items]
[Standards]
Safety Standards: UL1950, CSA C22.2 No.234 approved, IEC950 compliant
Noise Terminal Voltage: FCC Class A, VCCI-Class A
High Harmonics Current Restrictions: IEC61000-3-2
(Note) 24VDC voltage may drop instantaneously due to rush current at the beginning of 24V power
supply to the operation panel I/O unit. The level of voltage drop depends on the capacity of the
power supply. Do not share the power supply with the devices that have alarms to warn the
voltage drop.
(21) FG (FG terminal)
1 I +24V
2 0V
3 FG
Item Standard setting
Output Voltage fluctuation ±5% or less of 24VDC
Ripple noise 200mV (P-P)
Power capacity
Calculate the current value as a reference of maximum current
consumption for the unit which uses the power supply.
Output holding time 20ms
Overcurrent protection Required
CAUTION
1. Using a stabilized power supply without overcurrent protection may cause the unit's failure due to miswiring of
24V.
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