GEA Bock HG44e Series - Electronic trigger unit INT69 G; Connection of the trigger unit INT69 G

24
D
GB
F
E
96416-08.2020-DGbFEIRu
Terminalbox
Fig.13
ATTENTION
Measure circuit BT1 and BT2
(PTC sensor)mustnotcome
into contact with external
voltage.
Thiswoulddestroythetrigger
unitINT69GandPTCsensors.
7.6 ElectronictriggerunitINT69G
7.7 ConnectionofthetriggerunitINT69G
The compressormotor is tted withcold conductor temperature sensors (PTC)connected to the
electronic trigger unit INT69 Gin the terminal box.Incase of excess temperature in the motor
winding,theINT69Gdeactivatesthemotorcontactor.Oncecooled,itcanberestartedonlyifthe
electroniclockoftheoutputrelay(terminalsB1+B2)isreleasedbyinterruptingthesupplyvoltage.
The
hotgassideofthe compressorcanalsobeprotectedagainst overtemperatureusingthermal
protectionthermostats(accessory).
The
unittripswhenanoverloadorinadmissibleoperatingconditionsoccur.Findandremedy
the cause.
INFO Therelay switchingoutput is executed asa oatingchangeover
contact.Thiselectricalcircuitoperatesaccordingtothequiescent
currentprinciple,i.e.the relaydrops intoa theidle positionand
deactivatesthemotorcontactorevenincaseofasensorbreakor
open circuit.
INFO ConnectthetriggerunitINT69Ginaccordancewiththecircuitdia-
gram.Protectthetriggerunitwithadelayed-actionfuse(FC2)of
max.4A.Inordertoguaranteetheprotectionfunction,installthe
triggerunitastherstelementinthecontrolpowercircuit.
7 | Electrical connection
Οnderung
Klebeschilder
0
Datum Name
Datum
Bearb.
Gepr.
Norm
1
04.12.2009
Kelich
22.05.2015
Urspr.
2
Ers. f.
3
Ers. d.
4
Schaltplan
5 6 7
BOCK COMPRESSORS
8
=
+
9
Bl.
MP10 INt69 Bl.
MP10 INt69
INT69 G
Motor Protection MP10
Steuerstrom-
kreis
L
N
Steuerstrom-
kreis
L N
1112 14
B1 B2OG OG
+
-
BT1
Θ
X1 L1 L1 N N 43 43 11 12 14
L S M
X2 1 2 3 4 5 6
R1
R2
+
-
BT1
Θ
+
-
BT2
Θ
+
-
BT2
Θ
L
N
Controlcircuit