Altivar 38 - variable speed drive - user's manual

Configurable I/O Application Functions
Preset speeds
2, 4 or 8 speeds can be preset, requiring 1, 2 or 3 logic inputs respectively.
The following assignment order must be observed : PS2 (LIx), then PS4 (LIy), then PS8 (LIz).
ENGLISH
2 preset speeds 4 preset speeds 8 preset speeds
Assign: LIx to PS2
Assign: LIx to PS2 then
LIy to PS4
Assign: LIx to PS2
LIy to PS4, then LIz to PS8
LIx speed reference LIy LIx speed reference LIz LIy LIx speed reference
0 LSP+reference 0 0 LSP+reference 0 0 0 LSP+reference
1 SP2 0 1 SP2 0 0 1 SP2
1 0 SP3 0 1 0 SP3
1 1 SP4 0 1 1 SP4
1 0 0 SP5
1 0 1 SP6
1 1 0 SP7
1 1 1 SP8
To unassign the logic inputs, the following order must be observed: PS8 (LIz), then PS4 (LIy), then PS2 (LIx).
Reference switching
To configure the AI1/AI2 reference switching:
- Verify that the LI is not configured to "RFC:Auto/Manu" (if so, configure the LI to "NO:Not assigned").
- Configure a LI to "RFC:Auto/Manu". The second reference is then AI2.
To configure the AI1/AI3 reference switching:
- Verify that the LI is not configured to "RFC:Auto/Manu" (if so, configure the LI to "NO:Not assigned").
- Configure AI3 to "FR2:Speed Ref2".
- Configure a LI to "RFC:Auto/Manu". The second reference is then AI3.
Connection diagram
LI x + 24 COM AI 1 +10 AI 2
0-20mA
4-20mA
Open contact, reference = AI2 or AI3
Closed contact, reference = AI1
Freewheel stop
Causes the motor to stop using the resistive torque only. The motor power supply is cut.
A freewheel stop is obtained when the logic input opens (state 0).
DC injection stop
An injection stop is obtained when the logic input closes (state 1).
Fast stop
Braked stop with the deceleration ramp time reduced by a reduction factor dCF which appears in the drive
menu.
A fast stop is obtained when the logic input opens (state 0).
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