LEGRAND KEOR T EVO 10-60 KVA User Manual

KEOR T EVO
Installation & Operation Manual
Description of the Symbols Used in the Manual
This symbol points out the instructions which are especially important.
This symbol points out the risk of electric shock if the following instruction is
not followed.
This symbol points out the instructions, which may result with injury of the
operator or damage of the equipment if not followed.
All packing material must be recycled in compliance with the laws in force in the
country where the system is installed.
Description of the Symbols Used in the Manual
UPS: Uninterruptible Power Supply
ESD: Emergency Switching Device
RS232: Serial Communication Protocol
RS485: Serial Communication Protocol
MODBUS: Modicon Communication Protocol
SNMP: Simple Network Management Protocol
V: Volt
A: Ampere
P: Power
For Mains Supply, Auxiliary Mains Supply, Output, Battery Circuit Breaker and Maintenance Bypass Circuit
Breaker;
“ON”: Closing the Circuit
“OFF”: Opening the Circuit
KEOR T EVO
Installation & Operation Manual
Description of the Symbols Used in the Manual
This symbol points out the instructions which are especially important.
This symbol points out the risk of electric shock if the following instruction is
not followed.
This symbol points out the instructions, which may result with injury of the
operator or damage of the equipment if not followed.
All packing material must be recycled in compliance with the laws in force in the
country where the system is installed.
Description of the Symbols Used in the Manual
UPS: Uninterruptible Power Supply
ESD: Emergency Switching Device
RS232: Serial Communication Protocol
RS485: Serial Communication Protocol
MODBUS: Modicon Communication Protocol
SNMP: Simple Network Management Protocol
V: Volt
A: Ampere
P: Power
For Mains Supply, Auxiliary Mains Supply, Output, Battery Circuit Breaker and Maintenance Bypass Circuit
Breaker;
“ON”: Closing the Circuit
“OFF”: Opening the Circuit
11
11
KEOR T EVO
Installation & Operation Manual
4.3. Bypass Mode
UPS transfers the loads automatically to the mains voltage in order to protect them during abnormal
conditions.
While UPS operates in Online Operation, UPS switches to bypass automatically (in case the mains voltage
and frequency is within the limits of bypass) in the following conditions;
• During start-up
• Bypass Priority
• Inverter Fault
• Prolonged Overload, output short circuit
• High Heatsink Temperature
After these conditions are eliminated, the UPS automatically returns to inverter.
Bypass Operation Voltage Range
The mains voltage is required to be in certain range for Bypass Operation. Voltage tolerance is set ±18% of
the output voltage in the factory. For instance; if the output voltage is Ph-Ph: 400V, the tolerance range
of bypass voltage would be Ph-Ph: 328V – 472V. In case the input voltage decreases below Ph-Ph: 328V or
increases above Ph-Ph: 472V; if UPS runs in Bypass Mode UPS switches to Online Mode Operation; if UPS
runs in Online Mode Operation it cannot switch to Bypass Mode Operation even if a fault occurs. If the
batteries and the inverter are suitable to supply the loads, UPS switches to Battery Mode Operation.
Bypass Mode Operation voltage tolerance limit can be adjusted in certain ranges depends on the customer’s
request on site by Legrand UPS Technical Service Personnel.
To return to Bypass Mode Operation; the mains voltage should turn back to +5V above of lower limit, -5V
down of upper limit of bypass limits. Default settings are Ph-Ph: 333V – 465V for Ph-Ph: 400V UPS.
Prolonged overloads in Bypass Operation may cause the thermal/magnetic pro-
tection act. In this case, all loads will be de energized.

LEGRAND KEOR T EVO 10-60 KVA Specifications

General

Brand	LEGRAND
Model	KEOR T EVO 10-60 KVA
Category	UPS
Language	English