AOpen DE7200 Series Betriebsanleitung PDF herunterladen (Seite 41)

OPERATING INSTRUCTIONS

30 Sep 13 4-3

DE-7200VFDCentrifuge

DANGER! USE EXTREME CAUTION WHEN OPERATING CENTRIFUGE WITH

PURGE SYSTEM BYPASSED. DANGEROUSLY HIGH VOLTAGE WILL BE

PRESENT IN CONTROL CABINET IF DOOR IS OPENED WHILE POWER IS

APPLIED.

To bypass the purge system, proceed as follows:

1. Be certain that control cabinet is in a non-hazardous environment; then shut down, lock out,

and tag out electric power to centrifuge.

2. Remove bolts securing electrical panel door at right side of cabinet, and open door.

3. Locate intrinsic barrier at upper right side of electrical panel, and install a jumper across

terminals 1 and 4 to disable the purge system (Figure 4-1).

4. Label jumper “Purge Bypass”.

5. To restore purge system operation, remove the “Purge Bypass” jumper, and close and

secure electrical panel door. Confirm proper operation of the purge system.

Figure 4-1. Purge System Bypass

INITIAL STARTUP

Perform the initial startup procedure when the centrifuge is being started for the first time following

installation or after the machine has been relocated.

1. Check that all tools, documents, and shipping brackets have been removed, and there are no

obstructions to operation.

2. Verify that all personnel are clear of equipment.

3. Confirm that all operators and maintenance personnel have read and understand all operating

and safety information in Section 2.

4. Verify that equipment has been installed properly, all shipping brackets have been removed,

and bearing pillow blocks have been tightened to specified torque per Section 3.

5. For explosion-proof cabinet, turn on compressed air to purge system.

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AOpen DE7200 Series Betriebsanleitung Seite 41