Yaskawa L1000E AC Drive CIMR-LE†A - Manual (Page 228)

C Standards Compliance
228 YASKAWA TOEPYAIL1E01A YASKAWA AC Drive L1000E Quick Start Guide
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 60 Control Circuit Terminal Power Supply
Drive Short Circuit Rating
This drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes,
480 Vac maximum (Up to 240 V in 200 V class drives, up to 480 V for 400 V class drives), when protected by fuses or
circuit breakers as specified in
Table 59 .
■ Drive Motor Overload Protection
Set parameter E2-01/E5-03 (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/E5-03: Motor Rated Current (IM Motor/PM Motor)
Setting Range: Model Dependent
Default Setting: Model Dependent
Parameter E2-01/E5-03 (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/T2-04 is automatically written into
parameter E2-01/E5-03. If Auto-Tuning has not been performed, manually enter the correct motor rated current to
parameter E2-01/E5-03.
L1-01: Motor Overload Protection Selection
The drive has an electronic overload protection function (oL1) based on time, output current, and output speed, 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 61 Overload Protection Settings
Input / Output Terminal Signal Power Supply Specifications
Open Collector Outputs P1, C1, P2, C2, 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, AC, AM, FM
Setting Description
0 Disabled Disabled the internal motor overload protection of the drive.
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 reduced 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.
5
Permanent Magnet motor with constant
torque Selects protection characteristics for a constant torque PM motor. The motor overload
detection level (oL1) is constant over the whole speed range.
6 Standard fan cooled motor (50 Hz)
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.