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Commissioning and operation
Page 18
RES-5006
Version 1
7.3.2
Changing the heating element
To change the heating element, the supply voltage must be disconnected from the RESISTRON
®
temperature controller on all pins.
The heating element must be changed in accordance with the manufacturer’s instructions.
After every heating element change, zeroing must be performed with the AUTOCAL function and with a cold
heating element (and cold surroundings: i.e. silicone, PTFE cover, sealing bar, among others) to compensate for
production-related tolerances of the heating element resistance.
If a new heating element is used, the above-described procedure for burning in must be performed.
7.4
Commissioning rules
Observe here section 2 "General information" on page 3 and section 3 "Use" on page 6.
Mounting, installation and commissioning may only be performed by qualified and trained persons
who are familiar with the related hazards and warranty stipulations.
7.4.1
Initial startup
Requirement: Device is correctly mounted and connected (
section 6 "Mounting and installation" on page 7).
Proceed as follows when starting up the controller for the first time:
1. Switch off network voltage and 24 VDC power supply; verify lack of voltage.
2. Set desired station address in the PROFIBUS network (
section 7.2 "Device configuration" on page 15).
3. Integrate GSD file in the PROFIBUS master (
chap. 8.3) and select desired communication module (protocol
“compact”, “expanded” or “complete”), possibly change parameter data and start communication.
4. Make sure that the higher-level controller does not send values not equal to zero to the RESISTRON
®
temper-
ature controller.
5. Switch on the network voltage and 24 VDC power supply in any order.
6. After the voltage is switched on, the yellow “AUTOCAL” LED lights up for about 0.3 seconds and displays the
correct switch-on process of the controller. As long as no network voltage is present, this LED flashes slowly
(1 Hz).
At switch-on, if in addition to the yellow “AUTOCAL” LED the red “ALARM” LED lights up for
0.3seconds, the configuration with the visualisation software has been changed for this controller
(
section 8.12 "USB interface for visualisation software ROPEXvisual
" on page 47). The controller’s
configuration must be checked to avoid malfunctions before continuing with commissioning.
7. The green “DATA EXCHANGE” LED lights up when the PROFIBUS communication is active.
8. The following statuses can then result:
9. With a cold heating element, activate the AUTOCAL function by setting the AC bit (
A
UTO
C
AL) in the
“ALARM” LED
“OUTPUT” LED
MEASURE
OFF
Short pulses every 1.2seconds
Continue with item 9
FLASHES quickly (4 Hz)
OFF
Continue with item 9
Permanently ON
OFF
Error diagnosis (
chap. 8.19)
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