Flowserve TRS 5-6 - Manual (Page 13)

13
TRS 5-6 b, TRS 5-6 c/d
1. When switching on the mains voltage the green LED should be permantently
illuminated. Fig. 3
2. Raise temperature in heat generator until the permissible temperature limit is
exceeded. The two red LEDs on the temperature switch must light up.
3. After lowering the temperature the two red LEDs must extinguish.
4. An alarm ‘limit temperature exceeded’ can be simulated by pushing the button
TEST
I . On pushing the button the two red LEDs must light up.
5. To check the function of the self-checking circuitry of the temperature switch
proceed as follows: Set switch
TEST
II /
INSPECTION
in the direction of the arrow.
After max. two minutes the two red LEDs should signal alarm. The button
TEST
I must not be operated during this test nor must the adjusted limit
temperature be exceeded. After the test return switch into its original position.
After the response delay the two red LEDs must extinguish.
Check functions
Commissioning
– continued –
Fault: The temperature switch signals alarm during normal operation
(temperature within permissible limits).
Remedy 1: Check whether the green LED is illuminated, if not, check power supply.
Remedy 2: Check whether resistance thermometer supply cable is damaged.
Remedy 3: Check whether measured values emitted by resistance thermometer are
correct (basic values of precision resistors in accordance with DIN 43760
for Pt 100).
Fault: The testing with the switch
TEST
II /
INSPECTION
was not successful, i. e.
only one or neither of the red LEDs illuminates within two minutes
from the start of the test.
Remedy: Replace temperature switch.
If faults occur that are not listed above please contact our subsidiary or agency in
your country.
Annex
Fault finding list for troubleshooting
Danger
The terminal strip of the TRS 5-6 b, TRS 5-6 c/d is live during operation.
This presents the danger of electric shock. Cut off power supply before
fixing or removing the cover.
4
1
2
1
2
1
2
3
3
4