YASKAWA L1000A Quick Start Manual page 60

11 UL Standards

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.
Input / Output
Open Collector Outputs
Digital inputs
Analog inputs / outputs

Drive Short-Circuit Rating
This drive is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes, 600
Vac maximum (Up to 240 V in 200 V class drives, up to 480 V for 400 V class drives) when protected by Bussmann
Type FWH fuses as specified in

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.
Setting
0
Disabled
1
Standard fan-cooled motor (default)
Drive duty motor with a speed range of
2
1:10
3
Vector motor with a speed range of 1:100
Permanent Magnet motor with constant
5
torque
When connecting the drive to more than one motor for simultaneous operation, disable the electronic overload protection
(L1-01 = 0) and wire each motor with its own motor thermal overload relay.
EN 60
Terminal Signal
P1, C1, P2, C2, DM+, DM-
S1-S8, SN, SC, SP, HC, H1, H2
+V, -V, A1, A2, AC, AM, FM
Installing Input Fuses on page
Disabled the internal motor overload protection of the drive.
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.
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.
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.
Selects protection characteristics for a constant torque PM motor. The motor overload
detection level (oL1) is constant over the whole speed range.
Power Supply Specifications
Requires class 2 power supply.
Use the internal LVLC power supply of the drive. Use class 2 for external
power supply.
Use the internal LVLC power supply of the drive. Use class 2 for external
power supply.
59.
Description
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide