GE VAT2000 - Page 102

6. Control Functions and Parameter Settings
6-27
Block-C parameters (Extended function constants) list
ApplicationNo. Parameter Unit Default Min. Max. Function
ST V/f VEC PM
C20 – Start interlock
0 Start/stop frequency
(speed)
% 0.0 0.0 20.0 The motor will stop when below this
frequency setting.
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1 Start/stop frequency
(speed) hysteresis
% 1.0 0.0 20.0
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2 Interlock frequency
(speed)
% 0.0 0.0 20.0 The motor will not start when the
speed or frequency setting is lower
than this frequency.
When C20-0=0, the setting start/stop
will not operate.
When C20-2=0, the setting interlock
will not operate.
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3 RUN delay timer sec 0.00 0.00 10.00 Delays F RUN or R RUN operation
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C21 – Retry/pick-up
0 Number of retries 0. 0. 10. No of re-start tries after a fault
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1 Retry wait time sec 5. 1. 30. Delay time between tries
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2 Pick-up wait time sec 2. 1. 10. Delay time before pick-up
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3 Pick-up current limit
value
% 100. 50. 300. Do not set a value less than the
excitation current.
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C22 – Overload
0 Overload setting % 100. 50. 105. Note that when this parameter is
changed, Parameters C22-1 and
C22-2 will automatically be adjusted
to the value of this setting.
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1 0Hz overload % 100. 20. 105.
The maximum value is as set on
C22-2.
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2 0.7Base freq.overload % 100. 50. 105. The minimum value is as set on
C22-1.
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4 Motor loss braking
setting
% 50.0 0.0 70.0 This function is valid when control
mode selection is C30=1,2 and DBR
option selection is C31-0=3,4
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C22-0~2: The max. value differs according to the load characteristic selection (C30-0).
When C30-0=2 (when variable torque is selected), these max. value is 100.
C23 – Start/Stop frequency-Overload (Dual drive)
0 Start frequency Hz 1.0 0.1 60.0
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1 Stop frequency
(DC Brake start)
Hz 1.0 0.1 60.0
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2 Overload setting % 100. 50. 105. Note that when this parameter is
changed, Parameters C23-3 and
C22-4 will automatically be adjusted
to the value of this setting.
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3 0Hz overload % 100. 20. 105. The maximum value is as set on
C22-4.
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4 0.7Base freq.overload % 100. 50. 105. The minimum value is as set on
C22-3.
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