Nastec ANDO VASCO - Commissioning; Preliminary Checks; Powering; Use and Programming

Type Description Functionality Comments
Relay outputs NO3 Normally Open DOL1 Relay
NO3, COM3: contact closed to
start the DOL1 pump.
NC3, COM3: contact open to
start the DOL1 pump.
Potential-free contacts
Max 250 VAC, 2 A
Max 30 VDC, 2 A
COM
3
Common
NC3 Normally Closed
Relay outputs NO4 Normally Open DOL2 Relay
NO4, COM4: contact closed to
start the DOL2 pump.
NC4, COM4: contact open to
start the DOL2 pump.
Potential-free contacts
Max 250 VAC, 2 A
Max 30 VDC, 2 A
COM
4
Common
NC4 Normally Closed
RS485 serial port S1+ Positive Communication
COMBO
-
S1- Negative -
G Serial GND The serial GND is isolated from the
signal GND
RS485 serial port S2+ Positive Communication
MODBUS RTU
-
S2- Negative -
G Serial GND The serial GND is isolated from the
signal GND
8. Commissioning
8.1. Preliminary checks
Before supplying power to the device, carry out the following electrical and mechanical checks:
• Check that the device complies with the motor control according to its data plate.
• Verify proper grounding of the device, of the load, and of the entire system.
• Check the correct connection of the power supply cable and the motor cable, paying particular attention to any
connection reversal.
• Check the correct connection of the power and signal cables, paying particular attention to any polarity.
• Check that the connection terminals of the power and signal cables are correctly tightened.
• Check the implementation of electromagnetic compatibility (EMC) regulations and the correct connection of cable
shields.
• Check that the protective devices are present and correctly installed.
• Check that the mechanical installation is correct, sturdy and complies with environmental and cooling require-
ments.
• Check that the seals are intact and correctly positioned in their seats.
• Check that the cable glands and screws are properly tightened.
• Check that the device is completely closed and that live parts are not accessible.
8.2. Powering
DANGER
Before supplying power to the device, make sure you have read, understood and implemented all the
safety, mechanical, and electrical installation instructions.
At the end, it shall be possible to:
• power up the device.
• verify the correct switching on and the absence of alarm messages.
• perform programming.
• start the motor.
9. Use and programming
VASCO - VAriable Speed COntroller
32