E126-P-EL
User Manual
FW_E126-P-EL_M_v0301-01_EN
Page 51
6.4.12 TERMINALS E1-E2: TEMPERATURE INPUT (0)4-20MA - TYPE TA
The E126-P-EL type TA requires a (0)4-20mA signal from the temperature sensor. The input is not
isolated. See
Menu 5: Temperature - with type TA (4-20mA) [»27]
for configuring the temperature
input.
When the sensor supply voltage P3 is set to 24V, this voltage can also be used to power the
temperature sensor.
E1
E2 - Signal
Common system ground
R
┴
P3
↓
+
J1-J2
24V
MEM
Fig. 37:
Terminals E1-E2 and P3: (0) 4-20 mA temperature input (typical) - Type TA
6.4.13 TERMINALS E1-E3: EXTERNAL RESET WITH CLEAR-LOCK - TYPE IB
Use this function to reset the total to zero with an external switch (pushbutton). The total resets the
moment a falling edge is detected (the moment the switch closes).
To disable the ”Clear Total”-function of the optical keys, keep this input closed.
Make sure the contact resistance of the switch is less than 0.8 V@2uA = 400 kOhm. A reset pulse
should last for at least 100 ms. The input must be switched with a normally open contact to GND.
R
3V
E1
┴
E3
Common system ground
MEM
Fig. 38:
Terminals E1-E3: External reset
