Drehmo D 30 - Heater with Heating Resistor; Self-Regulating Additional Heater (Option)

Commissioning
31
• Check: The factory setting is reached once the 0/4 – 20mA signal does no longer
change during actuator operation whereas the signal must either be 0 or 4mA
(sensor locked).
7.9
Heater with heating resistor
The heating resistor (E1 in the terminal plan) can be operated as standstill heater.
Heating power is only achieved if the power supply is connected to the respective ter-
minals (heed terminal plan) for the heater.
Heating resistor data:
U
heating resistor
= 230V
P
heating resistor
= 10W
Heating resistor data for explosion-proof version:
U
heating resistor
= 230V
P
heating resistor
= 6W
As an option, heating resistors with 24V, 10W or 110V, 10W are available.
7.10
Self-regulating additional heater (option)
When using a self-regulating heater band (self-regulating parallel heater cable) (E1 in
the terminal plan), the temperature range can be extended downwards. The self-regu-
lating additional heater is installed if the operating temperature is below −25°C when
using electronic position transmitter B3 or if the operating temperature is below −50°C
without using electronic position transmitter B3.
Band heater data below −25°C:
U
band heater
=230V
P
band heater
<10W
Band heater data below −30°C:
U
band heater
=230V
P
band heater
<60W
For operation below −25°C, switch on the self-regulating additional heater one hour
before commissioning the electronic position transmitter B3.