Connector Pinouts
DMC-A2 Series use plug-in type screw terminal connectors for
most input and output connections, an RJ-11 phone connector
for the RS-232 serial output and an RJ-45 phone connector for
the optional Ethernet output.
WARNING: AC and DC input signals and power supply
voltages can be hazardous. Do not connect live wires to
screw terminal plugs, and do not insert, remove, or handle
screw terminal plugs with live wires connected.
All external connections to the DMC-A2 Series are via the
following six connector terminal blocks located at the rear of the
controller:
• Terminal 1: Input Signals.
• Terminal 2: Function Pins.
• Power: AC / DC Power Supply.
• Terminal 4: Analog Output.
• Terminal 5: Serial Output.
• Terminal 6: Relay Output.
Figure 3 – Rear Panel Pinout Diagram
Pin Name Description
Connector
1
Input Signals
Reset Display
Value (Lock)
TERMINAL 1
TERMINAL 2
Function Pins
2 Display Zero
(Hold)
By connecting Pin 5 (capture) to Pin 4 (common) with a remote spring-return switch manually
resets the calibrated zero.
3
Manual Zero
(Capture)
Pin 3 (display test and reset pin) provides a test of the controller’s display and resets the
microprocessor when Pin 3 is connected to Pin 4.
4
Display Test and
Reset
To activate the hold, test and reset, or lock pins from the rear of the controller, the respective
pins have to be connected to the common pin.
5
Common
1 AC Neutral / DC –
POWER
Auto Sensing
AC / DC Power
Supply
The power connector supplies AC / DC power to the controller via a standard high voltage or
optional low voltage auto-sensing power supply mounted on the main board.
PS1: Standard High Voltage option. 85-265 V AC / 95-370 V DC.
PS2: Optional Low Voltage option. 14-48 V AC / 10-72 V DC.
2 AC Line / DC +
Pins 1 up to 11
Pins 1 to 5
Pins 1 and 2
For further details on the function pins, contact Macro Sensors.
1 + Signal 1
2 – Signal 1
3
+ Signal 2
4
–Excitation
5
+Excitation
6
Not Used
7
– Signal 2
8
+ 24 V
Comentarios a estos manuales