14
VC II 230/400-3...15
9.2
Connection
VersiComb II is to be installed according to the attached connection diagram.
For other connections please consult PETER electronic GmbH & Co. KG.
Note:
Prior to putting the device into operation, the wiring is to be checked.
The usual line and motor protective measures are to be applied. In the case of high switching
frequency it is advisable to monitor, as a motor protective measure, the winding temperature,
since the thermal stress increases and the switching frequency permissible for the motor
decreases.
If motor temperature monitoring is not planned to be implemented, the terminals 7, 8 have to be
connected.
Note:
To ensure reliable and safe function it is necessary to comply with the interlo-
cking conditions:
1.
To initiate braking, it requires a potential-free normally closed contact of the main contactor,
i.e., when the motor contactor is dropped out, the terminals 5, 6 are connected.
2.
The interlocking contact, terminals 11, 12, has to be looped into the control circuit of the
motor contactor K1, so that the motor contactor
cannot
pull in during braking.
The 24V DC voltage supplied by the device both for checking the normally closed contact of the
main contactor and for motor-PTC detection is
not
a protection voltage or functional extra-low
voltage and must only be used to its intended purpose.
Caution:
The motor is
not
physically separated from the mains.
9.3
Parameter settings
Sequence of steps during commissioning:
1.
Disconnect the plant/system from the supply mains.
2.
Connect an amperemeter between the device (terminal „T1“) and motor terminal „U“.
A moving-iron instrument is required in order to adjust the braking current.
Clamp-on probes or digital multimeters can be used only if they are capable of measuring
the „true r.m.s.“.
3.
Turn potentiometer „t“ clockwise to right stop (position 10 on the scale)
4.
Turn potentiometer „M“ counter-clockwise to left stop (position 0 on the scale)
5.
Turn potentiometer „I“ to a position in the left third (position 2 on the scale)
6.
Turn potentiometer „n0“ to left stop (position 0 on the scale)
7.
Switch on the mains
8.
Start motor by pressing the ON-key
Summary of Contents for VersiComb II 230-3
Page 23: ...22 VC II 230 400 3 15...
Page 24: ...VC II 230 400 3 15 23...
Page 25: ...24 VC II 230 400 3 15...
Page 26: ......
