Electronic Trigger Unit Int69 G Ex - GEA Bock EX-HG88e Series Assembly Instructions Manual

5.5 Circuit diagrams for control section for direct start YY
Legend for circuit diagram YY (direct start)
FB1
FC2.1
FC2.2
SF1
QA2
KF3
KF4 ²
BT3¹
BP1/BP2¹ High/low pressure monitoring in accordance with the relevant national regulations
X SS
X KK
Optional
KF1
KF2
D
BP3
EB1
GB
LR
F
¹) Operate these components with the appropriate type of protection only
E
² ) Regard deviating connection voltage!
When using 24 V DC the installation of a safety isolating transformer is mandatory.
I
WARNING
INFO
26
Fault protection switch (release current 30 mA)
Control fuse
Control fuse LR / oil sump heater
Control voltage O/I
Performance contactor direct start
Collective malfunction alarm contactor
Electronic trigger unit INT69 EX2
Pump down- pressostat/ thermostat or external enabling switch
Terminal strip in the external switch cabinet
Terminal strip in the supplemental terminal box with recognised protection type
Time delay relay (on delay) max. 90 sec. (bypass time at start)
Time delay relay (drop-off delay) max. 90 sec. (on begins when the
oil pressure / monitoring is reached during operation)
Oil differential pressure sensor INT250 Ex (Kriwan)
Oil sump heater (ATEX design)
Capacity regulator (ATEX design)
With the installation of control and adjust parts the valid regulati-
ons for the explosion protection have to be observed!
= Installation outside of the explosion endangered area!