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6F3A4768
3
Interface
The interface of TMdrive-30 and TMdrive-P30 with external devices consists of two major interface systems,
power supply system interface and control system interface.
3.1 Power System Interface and Grounding
3.1.1 Power supply
3.1.1.1 TMdrive-30
TMdrive-30 requires the main circuit DC power supply 2x900Vdc and control power supply 220/230Vac, 60Hz
or 200Vac, 50Hz. The main circuit DC power supply 2x900Vdc is received at 90P1, 90C1, and 90N1 of the
power supply conductor (called “common bus” hereafter) located at the bottom of the enclosure.
Power is supplied to the common bus from a separately installed common converter (such as TMdrive-P30).
220/230Vac-60Hz or 200Vac-50Hz is supplied to the power supply terminal (20R1, 20SI, and 20T1) as control
power supply.
3.1.1.2 TMdrive-P30
TMdrive-P30 requires the AC main power supply 1100Vac and control power supply 220/230Vac, 60Hz or
200Vac, 50Hz.
3.1.2 Grounding
Fig. 3.1.1 shows the recommended grounding circuit of TMdrive-30 and TMdrive-P30 with associated units.
TMdrive-30 and TMdrive-P30 are normally used together and the common DC bus bar is used to connect
between these two drive units. In this configuration, ground bus bar is also provided to connect between them.
This equipment should be grounded in the following way:
●
Connect the control ground from the ground bus bar (E
1
) to the drive unit ground trunk line (E
D
), at one
point.
●
Connect the main circuit neutral point and the motor ground to E2, and connect the ground from the
converter to EHT, at one point.
●
Wire the ED trunk line and EHT trunk line to the ground pole via the shortest route.
(For the purpose of fixing the ground potential of the equipment for high frequency components.)
●
When grounding a drive unit, use a ground pole executed with C-type grounding (100
Ω
or less ground
resistance).
●
When grounding the motor also, wire it to the ground pole via the shortest route.
Drive units can be installed in several ways, as shown in Table 3.1.1.
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