Fundamental Differences Between Unidrive Sp And Unidrive Classic - Control Techniques unidrive sp Advanced User's Manual

Parameter Keypad and Parameter
structure display
6.1.1 Fundamental differences between Unidrive SP
and Unidrive Classic
The following Macros simulate the equivalent Macros in Unidrive classic.
The following are exceptions in functionality between the Macros in
Unidrive Classic and Unidrive SP:
• The Unidrive SP Macros run in positive logic, unlike Unidrive Classic
Macros which run in negative logic.
• You do not have access to change Analog Input 1 mode in any
Unidrive SP macro, as analog input 1 is now a dedicated high
precision voltage input, and cannot be turned into a current loop
input.
• The SECURE DISABLE input on Unidrive SP, which is an enhanced
equivalent of the enable input on Unidrive Classic, is now on
terminal 31, unlike Unidrive Classic which uses terminal 30. The
SECURE DISABLE input is also permanently positive logic, unlike
the enable input in Unidrive Classic, which can be changed to
negative logic.
• Macro 3 on Unidrive SP works in a slightly different way to Unidrive
Classic. In the Unidrive Classic Macro 3, the only way in which the
preset speeds can be enabled was to switch digital input F6 to logic
1. In Unidrive SP the software structure has changed, to be in line
with Commander SE. This means that if you switch on either, or both
of the preset selects, then regardless of the state of the preset
enable, the drive will automatically enable the preset speeds as the
speed reference.
• The order of the digital inputs has been changed to match those of
the Unidrive classic.
• The brake is now an additional feature in Menu 12, with enhanced
features over the Unidrive Classic.
• Analog input 3 is now defaulted to a voltage input. The input can be
configured via Pr 7.15.
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Unidrive SP Advanced User Guide
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Issue Number: 7