Electrical Test Values; Test Values (Position Sensor) - ABB PME120-AI Service Instruction

PME120-AI / PME120-AN (Contrac) ELECTRICAL ROTARY ACTUATOR | SEI/PME120-EN REV. A

8 Electrical test values

DANGER
Danger to life due to unexpected movement of the actuator!
Unexpected movement of the actuator may lead to very
serious injuries or to death.
• Make sure that the actuator can move without posing a
danger to people!
WARNING
Risk of injury due to live parts!
Risk of death or serious injuries due to electricity and
unexpected machine movements. In automatic mode the
motor is always under power, even at standstill.
• When working on the actuator or the related subassembly,
switch off the supply voltage for the electronic unit and
separate anti-condensation heater (option), and take
precautions to prevent unintentional switch-on.
Note
Check wiring and proper terminal connections before you start
the test procedure.

Test values (position sensor)

1 Signal terminals
Figure 35: Signal terminal location
The in- / output signals are assigned to terminals of the
electronic unit as follows:
Terminal* Value
17 DC +15 V; ± 15 % (supply); refer to terminal 22
18 only used for cable length detection with EAS822
19 Clock
20 Data
21 Reference potential for position signal
22 Reference potential for temp. signal and supply voltage
23 Position proportional voltage signal
(0.4 to 4.4 V); refer to terminal 21; end positions of actuator
must be adjusted
24 temperature proportional voltage signal; refer to terminal 22;
(Δ V approx. 22.4 mV / °C; approx. 1.8 V at 20 °C)
* see Figure 35 for terminal position)
25