Terminal Block (Tb) Definitions - Mettler Toledo M300 Schnellkonfigurationsanleitung

3

Terminal Block (TB) definitions

Power connections are labeled – N for Neutral and +L for Line, for 100 to 240 VAC or 20 – 30 VDC.
1/4DIN
TB2 for 1 ⁄ DIN
4
1 AO1+
2 AO1–/AO2–
3 AO2+
4 AO3+*
5 AO3–/AO4–*
6 AO4+*
7 DI1+
8 DI1–/DI2–*
9 DI2+*
TB1A for 1/4DIN
1 NO2
2 COM2
3 NC2
4 NO6*
5 COM6*
* Dual-
6 NO4
Channel
7 COM4
only
TB3/TB4 for and
1/2DIN
Cond***
Term. Function
1 Cnd inner1
2 Cnd outer1
3 Cnd inner2
4 Cnd outer2/Shield
5 –
6 RTD ret/GND
7 RTD sense
8 RTD
9 +5V
* Install jumpers between term. 1, 3 and 4 on Thornton O
** Transparent not connected.
6
TB4
9
1
TB1A
1 7
TB1B
1 7
NO = normally
TB1B for 1/4DIN
open (contact
1 NO1
is open if
2 COM1
unactuated).
3 NC1
NC = normally
4 NC5*
closed
5 COM5*
(contact is
6 NO3
closed if un-
7 COM3
actuated)
versions
1/4DIN
Color**
white
white/blue
blue
black
–
bare shield
red
green
–
*** Terminal 4 and 6 are internally connected, either terminal can be used to connect a wire.
1/2DIN
TB3
TB2 for 1/2DIN
9
1 AO1+
2 AO1–/AO2–
3 AO2+
1
4 AO3+*
9
5 AO3–/AO4–*
6 AO4+*
7 DI1+
8 DI1–/DI2–*
1
9 DI2+*
TB2
1 NO1
2 COM1
3 NC1
4 NO2
5 COM2
6 NC2
7 COM5*
O and O
(except 58037221)
2 3
Function Color
– –*
Anode red
– –*
Shield/GND green/yellow*
Cathode transparent
GND/NTC white and gray GND
– –
NTC green
+5V –
and O sensors, excluding 58037221.
2 3
TB1 1 14
1 9 1 9 1
TB2 TB3
TB1 for 1/2DIN
8 NC5*
9 COM6*
10 NO6*
11 NO3
12 COM3
13 NO4
14 COM4
O
(Thornton 58037221 only)
2
Function Color
signal white
range white/blue
– –
Shield/GND black and
bare shield
– –
transparent
RTD red
RTD green
+5V blue
9
TB4