Toshiba T300MVi MEDIUM VOLTAGE, Instruction Manual

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INTERFACE (cont’d)
Motor Interface
If armored and shielded cables are to be used, be sure to connect the shield drain or armor to the
ground bus provided in the drive equipment near the motor terminals (U, V, W). Ensure that the motor is
connected properly at the junction box and properly insulated to protect against accidental shorting or
grounding.
Speed Sensor Interface (Option)
In addition to open loop control, it is also possible to use a speed sensor to perform high precision
speed control. Speed sensor selection explained below
Resolver
The drive is capable of accepting both 1x and 4x resolver feedback. The excitation can be either 1
or 4kHZ. For resolver feedback, the following parameters need to be set:
CS_RES_TYPE=1or4 (Set to match the resolver)
CS_PG_OUT= Set to desired PG output count. (Minimum setting for reslover use is 64)
(See parameter manual for exact settings)
CS_PG_CNT=64
FLG_RES_EX4= 0 for 1kHz, 1 for 4kHz
PG (Pulse Generator)
This drive can only read single ended PG signals. The maximum frequency that the PG input can
read is 10kHz. The PG should be selected so that this limit is never exceeded. It is recommended that a
10% margin be allowed for overspeed. The following is an example of how to select your PG.
PG pulse count (ppr) = (maximum frequencyx0.9)/ (application top motor speed (min
-1
) / 60)
<Example> When 100% speed is 1800 min
-1
Max PG pulse count = (10000x0.9)/(1800/60) = 300 ppr
Therefore, PG of 300 ppr or less is used.
The following settings should be used:
CS_RES_TYPE=1
CS_PG_OUT=0
CS_PGCNT = 256 (Set to the PPR of the PG.)