ABB ACS880+N5350 User Manual page 167

Cooling tower drives
Table of Contents

Advertisement

Parameter (Number)
Block Title
CTD MOTOR
AUTOPHASING CURRENT
CONTROL
(76.01)
AUTOPHASING TIME (76.02)
OPERATING MODE (76.03)
CT MINIMUM SPEED (76.04)
SUPPLY VOLTAGE (95.01)
HW
CONFIGURATION
12-88 Startup Assistant & Parameters
Table 12-4 Level 1 Parameter Block Definitions
Selection (Value)
Default: 50% Current
Range: 0 to 150% Current
The Autophasing current is the DC current level the drive puts out to line
up the rotor.
Default: 100 Seconds
Range: 0 to 100 Seconds
The Autophasing time is how long the rotor can take to settle out before
rotation is started. Because of the high inertia of the large fans, it could
take 100 seconds to settle out.
Default: 1 (2-Wire)
Range: 0 - 4
1 2-Wire
2 3-Wire
3 PID control
4 Fieldbus
Operating Mode sets the method to start the drive for normal operation.
Mode 1-4 configures DI1 and DI2 for EXT2 control. Custom mode allows
custom programming of EXT1 control. Trickle and De-Ice always use
EXT2. In modes 1-4, De-Ice has priority and Trickle will automatically start
when drive is in standby.
In Custom mode drive must be stopped before De-Ice will start. Trickle
must be stopped before normal run.
The CTDD application requires a limited set of operating modes. It is
envisioned that the selection for this will be through CTDD Setup assistant
programmed.
Default: 0 RPM
Range: 0 to 650 RPM
Sets the minimum forward operating speed of the CTDD motor.
Default: -
Range: 0 - 6
No voltage range selected. The drive will not start modulating before a
0 (Not Given)
range is selected.
1 (208...240V) 208...240V
2 (380...415V) 380...415V
3 (440...480V) 440...480V
4 (500V) 500V
5 (525...600V) 525...600V
6 (660...690V) 660...690V
Selects the supply voltage range. This parameter is used by the drive to
determine the nominal voltage of the supply network. The parameter also
affects the current ratings and the DC voltage control functions (trip and
brake chopper activation limits) of the drive.
Note: The selections shown depend on the hardware of the drive. If
Descriptions
(Default for Demo Unit)
(Default for normal drive)
WARNING: An incorrect setting may cause the motor to rush
uncontrollably, or the brake chopper or resistor to
overload.
only one voltage range is valid for the drive in question, it is
selected by default.
3AXD50000011888

Advertisement

Table of Contents
loading

This manual is also suitable for:

Acs880-01-24a3-2+n5350Acs880-01-031a-2+n5350Acs880-01-046a-2+n5350Acs880-01-061a-2+n5350Acs880-01-075a-2+n5350Acs880-01-087a-2+n5350 ... Show all

Table of Contents