Hitachi WJ200 - MICRO-SPEED FUNCTION; LIMIT TO 1 ST SPEED FUNCTION

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MICRO-SPEED FUNCTION
Micro-speed is designed to temporarily restrict the speed of the hoist to a lower speed and to prevent high speed operations until
the function is released. The micro-speed function can be configured two ways.
2-STEP MAINTAINED MODE – This mode will switch to a 2-Step maintained speed set. This is helpful where the micro-speeds need
to be specific. This mode can also be used to provide a single speed by setting the low and high micro speed values the same value.
To use this mode P106 must have a value of 0.
PERCENTAGE MODE – This mode will take the value from P106 as a percentage of the standard speed set. Setting P106 to a value of
50 will provide a 50% reduction in speed to the standard speed sets for the configured speed control method.
In the chart below the digital input 4 is configured from the factory for micro-speed.
Function
Parameters
Value
Digital Input 4 Mirco-Speed Activation
Input
C004 59:MI4
Mirco-Speed Low-Speed P100 500 (5.00 Hz)
Mirco-Speed High-Speed P105 1000 (10.00 Hz)
Micro-Speed Mode P106
Value = 0 ( 2-STEP MAINTAINED )
Value > 0 ( PERCENTAGE MODE )
LIMIT TO 1
ST
SPEED FUNCTION
For applications where it is required to limit the VFD to 1
st
speed frequency you can configure an available digital input for that
function. This is typically used for travel limits or when approaching an upper / lower hook limit. The parameter chart below
references setting either digital input 6 or digital input 7.
Function
Parameter
Value
Input 6 Configuration P113 2
Digital Input 6 Function C006 61
Digital Input 6 Contact Status C016
00 = N.O
01 = N.C
Input 7 Configuration P114 2
Digital Input 7 Function C007 62
Digital Input 7 Contact Status C017
00 = N.O
01 = N.C