Electrical Connections - Pentax IPFC 109 Manual De Instrucciones

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PWM configurable: 2.5, 8 kHz.
150

5. Electrical connections

Disconnect the EPIC from the power supply before
acting on the device and connected loads. Read the chapter
relative to electrical safety carefully.
Line power supply:
L1, L2, P.E.
Attention: we recommend using pre-insulated female faston
terminals 6.3 x 0.8
Motor output:
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U, V, W, (P.E.)
Attention: we recommend using pre-insulated female faston
terminals 6.3 x 0.8
Attention: follow the phase sequence to guarantee correct rota-
tion direction of the motor.
Pressure sensor input:
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AN1: analogue input 4-20 mA
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+15V: sensor power supply 15 VDC
Attention: if the pressure sensor has only two wires, it is not
necessary to connect the signal earth.
Attention: connect the shield of the shielded cable directly to the
device earth.
External frequency signal input:
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To switch to the external frequency operation mode via ana-
logue input AN2, connect the pressure sensor upon device acti-
vation.
The device will power the motor, which has variable frequency
115 and is proportional to the AN2 analogue input signal.
Digital inputs IN1 and IN2 for motor start/stop:
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210 mm
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Digital inputs 1 and 2 are non-voltage potential free contacts,
which allow you to control the motor start/stop.
Both inputs are Normally Closed. Open one of the two contacts
to stop the motor (e.g. floater).
Alarm output:
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Attention: Max. 250 VAC, 2A
RS485 serial for COMBO operation:
S+ , S-
Thanks to the RS485 serial connection, two devices can com-
municate with each other to allow the COMBO operation in a
pressure unit.
We recommend using bipolar cables with minimum 0.35 mm
section2.
Fan power supply (12 VDC):
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Attention: the fan start and stop depend on the temperature of
the device.
Attention: Failure to comply with the polarities may damage the
fan.
AN2: analogue input 0-10 V
+10V: power supply 10 VDC
0V: reference 0V
IN1, 0V : digital input 1
IN2, 0V : digital input 2
N.O. , COM : the contact is closed in the presence of
an alarm or power failure.
N.C. , COM: the contact is open in the presence of an
alarm.
VENT: + , -
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