M&C EC-30C - Page 31

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Components Alarm type Symbol Code Description Comments
Pre-cooling unit
Temperature
01
Temperature
too high
T1 ≥ +5 °C (41 °F)
02
Temperature
too low
T1 ≤ -1 °C (30.2 °F)
Deep-cooling
unit I
Temperature
10
Cooling
temperature
too high
T2 ≥ T2
set
+3 °C (37.4
°F)
11
Heating
temperature
too high
T2 ≥ +30 °C (86 °F)
Peltier-
element(s)
12 Loss of power U
PE1
≥ 19.7 V
13 defect
No cooling despite
the FET, relay etc. OK
0 - 20 V
Module 1
14 defect
U
OUT
≤ U
OUT, set
-1 V
or
U
OUT
≥ U
OUT, set
+1 V
Deep-cooling
unit II
Temperature
20
Cooling
temperature
too high
T3 ≥ T3
set
+3 °C (37.4
°F)
21
Heating
temperature
too high
T3 ≥ +30 °C (86 °F)
Peltier-
element(s)
22 Loss of power U
PE2
≥ 19.7 V
23 defect
No cooling despite
the FET, relay etc. OK
0 - 20 V
Module 2
24 defect
U
OUT
≤ U
OUT, set
-1 V
or
U
OUT
≥ U
OUT, set
+1 V