installation &
operating instructions
Design Envelope 4322 & 4372
Tango Pumping Unit
22
2.3.7 relay output
2.3.7.1 relay output for frame 71 motors
Relay Connector(j12)
pin 1 Relay 1 n.o.
pin 2 Relay 1 com
pin 3 Relay 1 n.c.
pin 4 Relay 2 n.o.
pin 5 Relay 2 com
pin 6 Relay 2 n.c.
2.3.7.2 relay output for depm motors
J5 & J8 for Relay output
j8
Run
n.o. 2 Relay n.o.
n.c.2 Relay n.c.
com2 Relay 2A 250Vac
j5
Alarm
n.o. 1 Relay n.o.
n.c. 1 Relay n.c.
com 1 Relay 2A 250Vac
2.3.7.3 relay output for depm2 motors
pin 14 Relay 1 com
pin 15 Relay 1 n.o.
pin 16 Relay 1 n.c.
pin 17 Relay 2 a
pin 18 Relay 2 B
Max. Relay switching voltage: 250V AC/ 30V DC
Max. Relay switching current: 6A(250V AC)/5A(30V DC)
Environmental: -10°C .... +50°C
Terminal Torque: 0.5Nm (4.5 lb-in)
2.3.8 supply voltage
The supply voltage details can be found on the 4300 & 4380
nameplate. Please ensure that the unit is suitable for the
electrical supply on which it is to be used. The mains supply for
Design Envelope pumps is as follows:
1 × 200-230v ± 10%,
3 × 200-230v ± 10%,
3 × 380-480v ± 10%,
3 × 575-600v ± 10%
Frequency - 50/60Hz
2.3.9 supply fusing
Branch circuit protection
In order to protect the installation against electrical and fire
hazard, all branch circuits in an installation, switch gear, ma-
chines etc., must be short-circuit and over-current protected
according to the national/international regulations. Please refer
to section 8.0 (Fuse and wire recommendation).
Short circuit protection
The inverter must be protected against short-circuit to avoid elec-
trical or fire hazard. The frequency converter provides full short
circuit protection in case of a short-circuit on the motor output.
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