Manual

20
15.5 4-point inputs/4-point relay-output module,16-point inputs/8-point relay-
output module
RELAY OUTPUTS WELDED CLOSED
• Always protect relay outputs from inductive alternating current load damage using an
appropriate external protective circuit or device.
• Do not connect relay outputs to capacitive loads.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
EXM-DMM8DRT EXM-DMM24DRF
Rated Input Voltage 24 VDC
Rated Input Voltage Range DC20.4 to 28.8 V
Rated Input Current
7.3 mA/input (when 24
VDC is applied)
7 mA/input (when 24
VDC is applied)
No. of Input Points
4 points (sink/source
type - dual use)
16 points (sink/source
type - dual use)
No. of Input Common 1
Input ON Voltage 15 VDC or higher
*1
Input OFF Voltage 5 VDC or less
*1
Input Impedance 3.3 kΩ 3.4 kΩ
Isolation Method
Between input terminals and internal circuit:
photocoupler isolated
Between input terminals: not isolated
Input Delay
OFF-ON 4 ms
ON-OFF 4 ms
Usage Limits No limits Limits
*2
External Load for I/O
Interconnection
Not needed
Signal Determination Method LED lights when each point turns ON (logical side)
No. of Output Points
4 points (4 points/1
common)
8 points
No. of Output Common 1 NO 2 NO
Output Method 1a-contact
Maximum Load
Current
*3
Per Channel 2 A or less
Per Common 7 A or less
Min. Open/Close Load 0.1 mA/0.1 VDC (reference value)