Eaton 93E MK2 - Transfer from Normal Mode to Internal Maintenance Bypass; Transfer from Internal Maintenance Bypass to Normal Mode

6.3.7 Transfer from Normal Mode to Internal Maintenance Bypass
To transfer the load to maintenance b ypass:
1. On the UPS
System Control screen, select the NORMAL BYPASS command, then press the RETURN
pushbut ton.
2. L oosen the screws that fix the cover over the maintenance bypass switch. This action will signal the UPS
to
transfer to static bypass. Refer to Figure 6-2 for switch arrangement.
3. Verify that the LCD/LED display indicates the UPS is in Bypass mode.
4. Close the Maintenance Bypass switc h.
5. Open the Bypass Input and Output switches separately (Dual Input).
6. Open the Neutral switc h.
• The Neutral Switch should remain closed unless operated by a service tec hnician
•
Maintenance Bypass operate must be performed by an authorized Eaton Customer
Service
Engineer .
W ARNING
Power is present inside the UPS cabinet.
6.3.8 Transfer from Internal Maintenance Bypass to Normal Mode
To transfer the load to Normal mode:
1. Close the Ne utral
switch, slide the cover plate right and tighten the screws.
2. Close the Input and Bypass input switc hes.
3. Command the UPS to run in Bypass mode via the Control panel.
4. Verify that the LCD/LED display indicates the UPS is in Bypass mode.
5. Close the Output switc h.
6. Open the Maintenance Bypass switch, slide the cover plate left and tighten the screws.
7. Command the UPS to transfer to Normal mode via the control panel.
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Eaton 93E MK2 UPS (10-40kVA, 380/400/415V) Installation and Operation