ABB ACS880+N5350 User Manual page 141

Cooling tower drives
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Parameter (Number)
Block Title
SPEED
SPEED REFERENCE ACT 4
REFERENCE
(22.84)
SELECTION
Only available in
"Custom" mode
(Continued)
SPEED REFERENCE ACT 5
(22.85)
SPEED REFERENCE ACT 6
(22.86)
SPEED REFERENCE ACT 7
(22.87)
SPEED
Speed reference ramp settings (programming of the acceleration and deceleration rates for the drive).
REFERENCE
See the control chain diagram.
RAMP
SPEED REF RAMP INPUT
(23.01)
SPEED REF RAMP OUTPUT
(23.02)
12-62 Startup Assistant & Parameters
Table 12-4 Level 1 Parameter Block Definitions
Selection (Value)
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the value of speed reference after application of 1st speed
additive (22.15 Speed additive 1 source). See the control chain
diagram.
This parameter is read-only.
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the value of speed reference after the application of the
speed share scaling factor (22.16 Speed share). See the control chain
diagram.
This parameter is read-only.
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the value of speed reference after application of 2nd speed
additive (22.17 Speed additive 2 source). See the control chain
diagram.
This parameter is read-only.
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the value of speed reference before application of critical
speeds. See the control chain diagram. The value is received from
22.86 Speed reference act 6 unless overridden by
any constant speed
a jogging reference
network control reference
control panel reference
safe speed reference.
This parameter is read-only.
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the used speed reference (in rpm) before it enters the
ramping and shaping functions. See the control chain diagram.
This parameter is read-only.
Default: Read Only
Range: -30000.00 to +30000.00 RPM
Displays the ramped and shaped speed reference in rpm. See the
control chain diagram.
This parameter is read-only.
Descriptions
3AXD50000011888

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