16502 PIREG-C2 Gerätebeschreibung mit EtherNet_IP Bussystem191017 - EN.docx/ Page 12 of 66
4.2.3. Reset input: When a high signal is applied to the reset input (7), the PIREG-C2 is reset to the state
after power-on. This allows you to leave the error state without switching off the mains voltage. It can also
be used to cancel a calibration in progress.
4.2.4. Target value input: The temperature setpoint of the controller is applied to the target value input
(16) with an analogue voltage. For a calibration with variable reference temperature, the reference tem-
perature is applied to the target value input and for the 8-point and single-point Tc correction, the actual
temperature of the heating conductor is applied. The voltage range of the target value input is 0 - 10 V.
The selected temperature range applies to the maximum target voltage i.e. 10 V at the target value input
correspond to 300 °C or 500 °C in the temperature range 300 °C or 500 °C.
A potentiometer can also be used for the setpoint, whose sliding contact is connected to the target value
input, the CW connection to the V
ref
output (15) and the CCW connection to the corresponding GND con-
nection (13). When connecting the setpoint potentiometer, pay attention to the direction of rotation of the
potentiometer. The voltage at the target value input should increase when turning the setpoint potentiom-
eter clockwise (CW).
4.3. Outputs
4.3.1. Vref output: The Vref output (15) provides a reference voltage of +10 V needed to obtain the set
value using a potentiometer. Should the PIREG-C2 be operated without an additional power supply, the
switches for the control inputs can also be connected to the Vref output. The Vref output can supply a
maximum current of 20 mA.
4.3.2. Actual value output: The actual value output (17) supplies a voltage in the range 0 - 10 V, propor-
tional to the temperature of the heating conductor. The voltage range relates to the selected temperature
range. In other words, 10 V at the target value input corresponds to 300 °C or 500 °C. The actual value
output can supply a current of max. 5 mA.
- Hold mode: When the Hold mode is activated by command (KONF), the temperature measured at the
end of the sealing process is also displayed at the actual value output in the OFF state. You can select
whether the measured temperature is only displayed for 2 seconds or until the following sealing process
is started.
4.3.3. Alarm output: The alarm output (12/18) is a relay switching contact. A command (KONF) can be
used to set whether the alarm output is opened or closed in the case of a fault. The factory setting of the
relay contact is “closed” when a fault occurs. In the event of a power line error (error 3), it is set with a
delay of 2 s, for all other errors immediately.
In addition, the SKONF command can be used to specify whether the alarm output should be set imme-
diately in the event of an error or only after the sealing process has been performed. This way, a calibra-
tion error does not lead to a machine malfunction when switching on.
4.3.4. OK output: The OK output (21/22) is a relay switching contact. A command (KONF) can be used
to set whether the OK output is opened or closed if the situation is OK. When supplied from the factory,
the relay contact is closed in the OK case. The OK output has the following actuation functions, which can
be specified by command (KONF):
- Calibration OK message: This is the factory setting. The OK output is reset during calibration. It is set
again after a successful calibration. End of calibration is indicated with the calibration OK message. If the
stored calibration values do not match the setting, the OK output is also reset.
- Temperature OK message: The OK output is activated if the actual value is within the temperature OK
range. The temperature OK range and corresponding stabilising time are set by a specific command
(TOKG).
- Combination of calibration and temperature OK message: This is the combination of the two func-
tions above. This means that the calibration OK message is sent following a reset or a calibration pro-
cess, and the temperature OK message is sent after the first "Start" signal.
- Temperature reached message: If the actual value reaches 95% of the setpoint temperature in the ON
state, the OK output is activated. When leaving the ON state, the OK output is reset.
4.3.5. ELR output: The ELR output (19/20) controls an external solid-state relay which is used as actua-
tor instead of the internal actuator of the controller. Combinations of heating conductor and sealing trans-
former which have a greater capacity than the maximum permissible capacity of the internal actuator can
be switched with the external solid-state relay.
To Next Page