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SIEPCYEUOQ2V01A Q2V Technical Manual
Load Tolerance
Cooling Capability
Overload Characteristics
(at 100% motor load)
This motor is designed to withstand increased
temperatures during continuous operation in the low
speed range (0.2% base frequency).
The motor operates continuously at 0.2% to 100% rated
speed. Operating slower than 0.2% speed at 100% load
will cause motor overload.
6 : VT (50Hz)
Use this setting for general-purpose motors with a 50 Hz base frequency.
The overload tolerance decreases as motor speed decreases because the cooling fan speed decreases and the ability
of the motor to cool decreases in the low speed range.
The overload tolerance characteristics of the motor change the trigger point for the electronic thermal protector.
This provides motor overheat protection from low speed to high speed across the full speed range.
Load Tolerance
Cooling Capability
Overload Characteristics
(at 100% motor load)
This motor is designed to operate with commercial line
power. Operate at a 50 Hz base frequency to maximize
the motor cooling ability.
If the motor operates at frequencies less than commercial
line power, the drive will detect
oL1
. The drive triggers a
fault relay output and the motor coasts to stop.
■
L1-02: OL1 Protect Time
No.
(Hex.)
Name
Description
Default
(Range)
L1-02
(0481)
OL1 Protect Time
Sets the operation time for the electronic thermal protector of the drive to prevent damage to the
motor. Usually it is not necessary to change this setting.
1.0 min
(0.1 - 5.0 min)
Set the overload tolerance time to the length of time that the motor can operate at 150% load from continuous
operation at 100% load.
When the motor operates at 150% load continuously for 1 minute after continuous operation at 100% load (hot
start), the default setting triggers the electronic thermal protector.
shows an example of the electronic thermal protector operation time. Motor overload protection
operates in the range between a cold start and a hot start.
This example shows a general-purpose motor operating at the base frequency with
L1-02
set to 1.0 min.
•
Cold start
Shows the motor protection operation time characteristics when the overload occurs immediately after starting
operation from a complete stop.
•
Hot start
Shows the motor protection operation time characteristics when overload occurs from continuous operation
below the motor rated current.
V/f
OLV
OLV/PM
OLV/PM AOLV/PM
EZOLV
Summary of Contents for Q2V Series
Page 2: ...This Page Intentionally Blank 2 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 12: ...12 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 18: ...i 2 Legal Information 18 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 26: ...1 2 Features and Advantages of Control Methods 26 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 38: ...2 8 Installation Methods 38 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 70: ...3 3 Main Circuit Wiring 70 SIEPCYEUOQ2V01A Q2V Technical Manual Models B006 B012...
Page 102: ...3 17 Motor Application Precautions 102 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 138: ...4 12 Test Run Checklist 138 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 144: ...5 2 European Standards 144 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 145: ...Standards Compliance 5 5 2 European Standards SIEPCYEUOQ2V01A Q2V Technical Manual 145...
Page 146: ...5 2 European Standards 146 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 266: ...7 10 Troubleshooting Without Fault Display 266 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 284: ...8 6 Storage Guidelines 284 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 312: ...10 10 Peripheral Devices and Options 312 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 430: ...11 21 Parameters Changed by PM Motor Code Selection 430 SIEPCYEUOQ2V01A Q2V Technical Manual...
Page 731: ...SIEPCYEUOQ2V01A Q2V Technical Manual 731 Z Z pulse Auto Tuning 125...