![YASKAWA U1000 Series Скачать руководство пользователя страница 606](http://html.mh-extra.com/html/yaskawa/u1000-series/u1000-series_technical-manual_907114606.webp)
D.3 UL Standards
606
YASKAWA ELECTRIC
SIEP C710636 02B YASKAWA U1000 Technical Manual
■
Low Voltage Wiring for Control Circuit Terminals
Wire low voltage wires with NEC Class 1 circuit conductors. Refer to national state or local codes for wiring. If external
power supply used, it shall be UL Listed Class 2 power source only or equivalent. Refer to NEC Article 725 Class 1,
Class 2, and Class 3 Remote-Control, Signaling, and Power Limited Circuits for requirements concerning class 1 circuit
conductors and class 2 power supplies.
Table D.12 Control Circuit Terminal Power Supply
■
Drive Short-Circuit Rating
The drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical Amperes, 240
Vac maximum (200 V Class) and 480 Vac maximum (400 V class: 4E
and 4W
), and 500 Vac maximum
(400 V class: 4A
and 4P
) with built-in fuses manufactured by Hinode Electric Co., Ltd. and Mersen.
■
Branch Circuit Protection
For installation in the United States, branch circuit protection must be provided in accordance with the National
Electrical Code (NEC) and any applicable local codes. To fulfill this requirement, use the UL classified fuses.
For installation in Canada, branch circuit protection must be provided in accordance with the Canadian Electrical Code
and any applicable provincial codes. To fulfill this requirement, use the UL classified fuses.
◆
Drive Motor Overload Protection
Set parameter E2-01 (motor rated current) to the appropriate value to enable motor overload protection. The internal
motor overload protection is UL Listed and in accordance with the NEC and CEC.
■
E2-01 Motor Rated Current
Setting Range: 10% to 150% of the drive rated current
Default Setting: Model Dependent
Parameter E2-01 (motor rated current) protects the motor if parameter L1-01 is not set to 0 (default is 1, enabling
protection for standard induction motors).
If Auto-Tuning has been performed successfully, the motor data entered to T1-04 and T2-06 is automatically written into
parameter E2-01. If Auto-Tuning has not been performed, manually enter the correct motor rated current to parameter
E2-01.
■
L1-01 Motor Overload Protection Selection
The drive has an electronic overload protection function (oL1) based on time, output current, and output frequency,
which protects the motor from overheating. The electronic thermal overload function is UL-recognized, so it does not
require an external thermal relay for single motor operation.
This parameter selects the motor overload curve used according to the type of motor applied.
Table D.13 Overload Protection Settings
Input/Output
<1> Terminals P1, P2, and PC are only available in CIMR-UA
/UD
/UT
.
<2> Terminals SN and SP are only available in CIMR-UB
.
Terminal Signal
Power Supply Specifications
Open Collector Outputs
, P2
, DM+, DM-
Requires class 2 power supply.
Digital inputs
S1-S8, SN
, SC, SP
, HC, H1, H2
Use the internal LVLC power supply of the drive. Use class 2 for external power supply.
Analog inputs / outputs
+V, -V, A1, A2, A3, AC, AM, FM
Use the internal LVLC power supply of the drive. Use class 2 for external power supply.
Setting
Description
0
Disabled
Disabled the drive’s internal motor overload protection.
1
Standard fan cooled motor (default)
Selects protection characteristics for a standard self cooled motor with limited cooling capabilities when running below
the rated speed. The motor overload detection level (oL1) is automatically reduces when running below the motor rated
speed.
2
Drive duty motor with a speed range of 1:10
Selects protection characteristics for a motor with self-cooling capability within a speed range of 10:1. The motor
overload detection level (oL1) is automatically reduced when running below 1/10 of the motor rated speed.
3
Vector motor with a speed range of 1:100
Selects protection characteristics for a motor capable of cooling itself at any speed – including zero speed (externally
cooled motor). The motor overload detection level (oL1) is constant over the entire speed range.
4
Permanent Magnet motor with variable torque
Selects protection characteristics for a variable torque PM motor. The motor overload detection level (oL1) is
automatically reduces when running below the motor rated speed.
SIEP_C710636_02B_1_0.book 606 ページ 2015年11月25日 水曜日 午後4時56分