Operating Mode - ABB CM serie Betriebs- Und Montageanleitung

VI Function diagrams
a) Overtemperature monitoring p, 1 x 2 c/o contacts j
b) Overtemperature monitoring p, 2 x 1 c/o contact i
c) Undertemperature monitoring q, 1 x 2 c/o contacts j
d) Undertemperature monitoring q, 2 x 1 c/o contact i
e) Temperature window monitoring r, 1 x 2 c/o contacts j
Temperature window monitoring r, 2 x 1 c/o contact i
f)
Control supply voltage
Threshold value t1
Hysteresis
Measured value
Threshold value t2
Open-circuit principle
Output relay R1
Output relay R2
Green LED
Red LED
Yellow LED
Closed-circuit principle

Operating mode

Overtemperature monitoring, 1 x 2 c/o contacts
With this configuration, settings via t2 have no influence on the
operating function.
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value exceeds the adjusted threshold value t1, the
output relays energize. If the measured value drops again below
the adjusted threshold value t1 minus the adjusted hysteresis, the
output relays de-energize.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
Overtemperature monitoring, 2 x 1 c/o contact
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value exceeds the adjusted threshold value t2,
output relay R2 (prewarning) energizes. If the measured value
exceeds the adjusted threshold value t1, output relay R1 (final
switch-off) energizes.
If the measured value drops again below the adjusted threshold
value t1 minus the adjusted hysteresis, output relay R1 (final
switch-off) de-energizes. If the measured value drops below the
adjusted threshold value t2 minus the adjusted hysteresis, output
relay R2 (prewarning) de-energizes.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
Undertemperature monitoring, 1 x 2 c/o contacts
With this configuration, settings via t1 have no influence on the
operating function.
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value drops below the adjusted threshold value t2,
the output relays energize. If the measured value exceeds again
the adjusted threshold value t2 plus the adjusted hysteresis, the
output relays de-energize.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
English
Undertemperature monitoring, 2 x 1 c/o contact
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value drops below the adjusted threshold value
t1, output relay R1 (prewarning) energizes. If the measured value
drops below the adjusted threshold value t2, output relay R2 (final
switch-off) energizes.
If the measured value exceeds again the adjusted threshold value
t2 plus the adjusted hysteresis, output relay R2 (final switch-off)
de-energizes. If the measured value exceeds the adjusted thresh-
old value t1 plus the adjusted hysteresis, output relay R1 (pre-
warning) de-energizes.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
Temperature window monitoring, 1 x 2 c/o contacts
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value exceeds the adjusted threshold value t1 or
drops below the adjusted threshold value t2, the output relays
energize.
If the measured value drops again below the adjusted threshold
value t1 minus the adjusted hysteresis or exceeds again the ad-
justed threshold value t2 plus the adjusted hysteresis, the output
relays de-energize.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
Temperature window monitoring, 2 x 1 c/o contact
Open-circuit principle:
If the measured value is correct, the output relays remain de-ener-
gized when control supply voltage is applied.
If the measured value exceeds the adjusted threshold value t1
or drops below the adjusted threshold value t2, output relay R1
(> t1) or R2 (< t2) respectively energizes.
If the measured value drops again below the adjusted threshold val-
ue t1 minus the adjusted hysteresis or exceeds again the adjusted
threshold value t2 plus the adjusted hysteresis, output relay R1
(> t1) or R2 (< t2) respectively de-energizes.
Closed-circuit principle:
The behavior is inverse to the one with open-circuit principle.
All operating states are signalled by the front-face LEDs.
See table „LEDs, status information and fault messages"
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