Csa Standards Compliance; Drive Motor Overload Protection - YASKAWA A1000 Technical Manual

n 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. Use a class 2
power supply for the control circuit terminal when not using the internal control power supply of the drive. 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
Multi-function digital inputs
Multi-function analog inputs
Pulse train input
Pulse train output
Safe disable inputs
Safe disable outputs
n 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), 480 Vac maximum (400 V Class), and 600 Vac maximum (600 V Class) when protected by Bussmann
Type FWH or FWP fuses as specified in
u

CSA Standards Compliance

n CSA for Industrial Control Equipment
The drive is CSA-certified as Industrial Control Equipment Class 3211.
Specifically, the drive is certified to: CAN/CSA C22.2 No. 04-04 and CAN/CSA C22.2 No.14-05.
u

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.
n E2-01: Motor Rated Current
Setting Range: Model-dependent
Default Setting: Model-dependent
Parameter E2-01 protects the motor when parameter L1-01 is not set to 0. The default for L1-01 is 1, which enables protection
for standard induction motors.
If Auto-Tuning has been performed successfully, the motor data entered to T1-04 is automatically written to parameter E2-01.
If Auto-Tuning has not been performed, manually enter the correct motor rated current to parameter E2-01.
n L1-01: Motor Overload Protection Selection
The drive has an electronic overload protection function (oL1) based on time, output current, and output frequency that 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.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
Table C.5 Control Circuit Terminal Power Supply
Terminal Signal
S1, S2, S3, S4, S5, S6, S7, S8, SC, SP
+V, -V, A1, A2, A3, AC
RP, AC
MP, AC
H1, H2, HC
DM+, DM-
Installing Fuses on the Input Side
Figure C.7 CSA Mark
C.2 UL and CSA Standards
Power Supply Specifications
Use the internal control power supply of the drive or an
external class 2 power supply.
Requires class 2 power supply
on page 238.
C
247