ACH550 Installation, Operation and Maintenance Manual
57
ACH550 E-Clipse Bypass
Note:
Both the ACH550 Drive and the E-Clipse Bypass include preset application
macros. The only ACH550 Drive macro that provides the proper configuration
settings by default is the
E-Clipse HVAC Default macro
(9902 = 15). If any other
ACH550 drive macro or any modified setting of the
E-Clipse HVAC Default macro
is
used the following ACH550 Drive parameter values must be set and power cycled or
the E-Clipse Bypass will not function properly:
• Parameter 9802 must be set to “STD MODBUS”
• Parameter 1001 must be set to “Comm”
• Parameter 1002 must be set to “Comm”
• Parameter 1601 must be set to “Comm”
• Parameter 1608 must be set to “Comm”
• Parameter 5303 must be set to “76.8 kb/s”
• Parameter 5304 must be set to “8 EVEN 1”
• Parameter 5305 must be set to “DCU PROFILE”
• Parameter 5310 must be set to “103”
• Parameter 5311 must be set to “104”
• Power must be cycled
Refer to the
ACH550-UH User’s Manual
for programming instructions.
Note:
Run motor from drive before attempting bypass operation.
System check: motor disconnected from the ACH550 with E-Clipse Bypass
If you are familiar with the E-Clipse Bypass operation, you may skip the following
section. Otherwise, after performing the system checks and setting the ACH550
Drive Start-up Data parameters, become familiar with the operation of the ACH550
Drive with E-Clipse Bypass without the motor connected as follows:
1. Disconnect and lock out power to the E-Clipse Bypass unit, wait at least five minutes
after disconnecting power.
2. Disconnect the motor from the E-Clipse Bypass unit.
3. Apply power to the E-Clipse Bypass unit by turning on the branch circuit disconnect
device and the bypass disconnect switch or circuit breaker.
4. The ACH550 Control Panel display should be illuminated. On the E-Clipse Bypass
control panel, both the display and
Enabled
LED should be illuminated. If the
Enabled
LED is not illuminated solid green, check to see that closed contacts or
jumpers connect terminal X2:3 to X2:4 and X2:2 to X2:7 on the bypass control
board.
