Rockwell Automation 1336VT AC DRIVE 5-300AMP (2-160KW) PROGRAMMING MANUAL - Manual (Page 53)

Serial Port Parameters
Firmware Version 1.01-3.01
Chapter 4
4-3
Parameter 56 Ċ Serial Input
Read Only
Units Byte
Min Value 0
Max Value 255
This parameter is the drive storage location for the Serial Input byte. This
same byte is used to control the drive through the PLC Controller Output
Image Table. This parameter is an eight-bit word where each bit represents
the following parameter or control function.
The Serial Mask Parameter 57, controls whether these bits are used by the
drive. The Serial Mask must first be set through PLC programmable
controller block transfer before this byte will be accepted by the drive.
BIT 0 — Decel Time — 0 = select Decel Time 1, Parameter 8
0 = select Decel Time 2, Parameter 31
BIT 1 — Accel Time — 0 = select Accel Time 1, Parameter 7
1 = select Accel Time 2, Parameter 30
BITS 2 and 3 — Frequency Control
If either Speed Select is false or Parameter 72 is set to 0 (Off), the
combination of bits 2 and 3 selects Preset Frequency 1, 2 or 3, or
Frequency Select 1 or 2 as follows:
BIT 2 = 0 and BIT 3 = 0 — select Frequency Select 1 or 2, Parameters 5
or 6
BIT 2 = 0 and BIT 3 = 1 — select Preset Frequency 1, Parameter 27
BIT 2 = 1 and BIT 3 = 0 — select Preset Frequency 2, Parameter 28
BIT 2 = 1 and BIT 3 = 1 — select Preset Frequency 3, Parameter 29
When both Speed Select is true and Parameter 72 is set to 1 (On), the
combination of bits 2 and 3 selects Preset Frequency 4, 5, 6 or 7 as follows:
BIT 2 = 0 and BIT 3 = 0 — select Preset Frequency 4, Parameter 73
BIT 2 = 1 and BIT 3 = 0 — select Preset Frequency 5, Parameter 74
BIT 2 = 0 and BIT 3 = 1 — select Preset Frequency 6, Parameter 75
BIT 2 = 1 and BIT 3 = 1 — select Preset Frequency 7, Parameter 76