20 ACH550 Installation, Operation and Maintenance Manual
ACH550-UH
operates the motor without any commissioning, except entry of the motor data
as described below. Spin Motor is useful, for example, to operate ventilation
fans prior to commissioning.
Note: When using Spin Motor, the motor speed is limited to the range 1/3…2/3 of
maximum speed. Also, no interlocks are activated. Finally, once the drive is
commissioned, the welcome screen and this option no longer appear.
Motor data
The motor data on the ratings plate may differ from the defaults in the ACH550. The
drive provides more precise control and better thermal protection if you enter the
rating plate data.
1. Gather the following from the motor ratings plate:
•Voltage
• Nominal motor current
• Nominal frequency
• Nominal speed
• Nominal power
2. Edit parameters 9905…9909 to the correct values.
• Assistant Control Panel: The Start-Up Assistant walks you through this data entry.
• Basic Control Panel: Refer to ACH550 User’s Manual, for parameter editing
instructions.
Fault and alarm adjustments
The ACH550 can detect a wide variety of potential system problems. For example,
initial system operation may generate faults or alarms that indicate set-up problems.
1. Faults and alarms are reported on the control panel with a number. Note the number
reported.
2. Review the description provided for the reported fault/alarm:
• Use the fault and alarm listings on pages 24 and 29 respectively, or
• Press the help key (Assistant Control Panel only) while fault or alarm is displayed.
3. Adjust the system or parameters as appropriate.
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