ARKEL Elektrik Elektronik Ltd. Şti. www.arkel.com.tr
08.2012
ADrive
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11.10 – Trip Imax (Err_Imax: 4 - 99 A), 11.11-Trip ImaxT (Err_Imaxt: 0.1 – 9.9 s)
These parameters are used to limit the motor current. ADrive will give the “Imax_Trip
limit” error when the motor current exceeds the value set in parameter
11.10 during the period of
time set in parameter
11.11.
The device’s current limit may be harmful for the motor when the capacity of device is
larger than the motor capacity. In such cases, it will be appropriate to limit the motor current with
these parameters.
11.12 – Travel current gain (TCur-g: %10 - %100)
At the instant where the mechanical brake is released, the force caused by the imbalance
of the car and counter-weight is transferred instantaneously by the ropes to the rotor. At this
instant, the driver has to increase the motor current immediately to enable the rotor to stand-still
without rolling back. That’s why, PI controller gains for the motor current (11.2. KI_cur and
11.3.KP_cur) are desired to be as high as possible during startup. But adversely, keeping these
gains high during travel will cause fluctuations in motor current and will cause vibrations and
humming noises. This parameter allows reducing the gains during travel. For example, if this
parameter is set to 25%, the gains during travel will be 1/4
th
of the gains used during startup.
11.13 – Current limit (I_lim)
It is used to set the current limit. It is set to 2 x motor current during the auto-tuning
process. The limit value is the maximum current of the inverter. These values are shown below.
ADrive (HP) Current Limit (A)
7.5 28,2
10 35.3
15 53
20 70A
30 101.1
50 140
11.14 – ApRe monitoring (Enabled / Disabled)
Control of ApRe and over-speed governor self-monitoring function. To enable the
monitoring function, parameter “11.4-PIN Func.” must be set to “APRE mon. input”. Refer to
“ApRe Installation and A3 Test Instructions” for further information.
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