COSTAN TECHNICAL DOCUMENTATION
REVISION STATUS
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PAGE 8 OF 8
PRODUCT:
EPTAGLOO
ORD
DATE
CHANGE ORDER
OF THE SIGNED
DATE OF 1st ISSUE
DOC. no.
QSM0000406A
CHAP.
No.:
050
A
23.Feb.2010
RANGE
EXTENSION
ORIGINAL
13/June/07
CHAPTER:
ELECTRICAL PANEL
TECHNICAL SPECS
ISSUED BY MKT
C34C-3compressori : mod.
044266
(400VA) / C34C-4 compressors :mod.
044267
(630VA).
The electrical panel was mounted on the machine in accordance with the power voltage
requested at the time of ordering. Before powering up the machine, verify that the auxiliary
transformer’s primary voltage setting is consistent with the equipment’s voltage (400V or
230V) and ensure that the transformer’s secondary output is
230V
. Transformer output
voltage can be adjusted by
+/-15V:
for effective
230V
output, adjusting the transformer’s
secondary is capital.
Adjustment is dependent on the voltage supplied by the Electricity Company.
The transformer is delivered ready for operation on 400V/50-60Hz.
6.3
Red
color wires.
6.4 Cable numbering as per diagram.
6.5 Line start fuses for auxiliary circuits with 5x20 fuses (250Vac).
6.6 Timers: FINDER 80.11
6.7 Auxiliary relays: FINDER 55.34
6.8 Warning lights: SIEMENS SB3 diameter 22.
6.9 of Auxiliary circuit distribution 230V through shielded LEGRAND bars art. 004880 /
004881.
6.10
PED Directive-compliant safety general low-pressure and high pressure switches.
Diagram UTQ039030/sheet 3.
6.10.1 System shutdown in case of low pressure emergency by pressure-switch KLP (Danfoss
KP1).
6.10.2 System shutdown in case of high pressure emergency by pressure-switches KHP1
(Danfoss KP7B) and KHP2 (Danfoss KP7S). These pressure-switches are pre-set at the
factory and need to be re-engaged manually after they have tripped and after the cause of the
fault has been removed.
6.11
Emergency back-up regulation: Diagram UTQ039040/sheet 4
Mechanical back-up operation in case of failure of the high and low pressure electronic
control.
6.11.1
Low pressure mechanical back-up.
Performed by pressure switch PSB (Danfoss KP1) and delay devices R0-1-2-3.
Operation: In the event that the electronic controller fails, all compressors are shutdown. If the
off time is shorter than the time set for timer R0 (40-50 min.) then safety pressure switch
PSB trips and delay timer R1 starts to count. This starts compressor n°.1 and actuates delay
devices R2/3 which are associated to the compressors to be started next. Compressors under
backup operation are controlled through pressure switch PSB and the delay devices. PSB
must be set to an average operating value, thereby avoiding any possible interference with
safety low pressure switch KLP (Danfoss KP1).
The compressors to come on when under back-up functioning are all but one (-1). This means
that one compressor is excluded from back-up operation.
6.11.2
High pressure mechanical back-up
.
(only featured with high-pressure electronic
controller)
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