5.2 European Standards
170 YASKAWA SIEPC71061753C GA500 Technical Manual
*2 Use terminals B1, B2, -, +1, and +2 to connect options to the drive.
WARNING! Fire Hazard. Only connect factory-recommended devices or circuits to drive terminals B1, B2, -, +1, and +2.
Do not connect an AC power supply lines to these terminals. Incorrect wiring can cause damage to the drive and serious
injury or death from fire.
*3 To protect the circuit, the main circuit is separate from the surface case that can touch the main circuit.
*4 The control circuit is a Safety Extra-Low Voltage circuit. Use reinforced insulation to separate this circuit from other circuits. Make
sure that you connect the Safety Extra-Low Voltage as specified.
*5 Reinforced insulation separates the output terminals from other circuits. You can also connect circuits that are not Safety Extra-Low
Voltage circuits when the drive output is 250 Vac 1 A maximum or 30 VDC 1 A maximum.
WARNING! Electrical Shock Hazard. When you connect the shield wire of the control circuit wiring to the protective
ground terminal, do not connect the protective ground wire. If you connect the shield wire and the protective ground wire
to the protective grounding terminal, it may not comply with the technical standards and local safety regulations and can
cause serious injury or death.
■ Main Circuit Wire Gauges and Tightening Torques
WARNING! Electrical Shock Hazard. Make sure that the protective ground wire complies with technical standards and local
safety regulations. The EN 61800-5-1: 2007 standard specifies that users must wire the power supply to automatically turn off
when the protective ground wire disconnects. If you turn on the internal EMC filter, the leakage current of the drive will be more
than 3.5 mA. You can also connect a protective ground wire that has a minimum cross-sectional area of 10 mm
2
(copper wire).
If you do not obey the standards and regulations, it can cause serious injury or death.
WARNING! Electrical Shock Hazard. Only connect factory-recommended devices or circuits to drive terminals B1, B2, -, +1,
and +2. Do not connect AC power to these terminals. Incorrect wiring can cause damage to the drive and serious injury or death
from fire.
Note:
• The recommended wire gauges are based on drive continuous current ratings with 75 °C (167 °F) 600 V class 2 heat-resistant indoor
PVC wire. Assume these conditions:
–Ambient temperature: 40 °C (104 °F) maximum
–Wiring distance: 100 m (3281 ft) maximum
–Normal Duty rated current value
• Refer to the instruction manual for each device for recommended wire gauges to connect peripheral devices or options to terminals +1,
+2, -, B1, and B2. Contact Yaskawa or your nearest sales representative if the recommended wire gauges for the peripheral devices or
options are out of the range of the applicable gauges for the drive.
• When you use crimp ferrules on the wire ends, contact Yaskawa or your nearest sales representative.
Wire Selection Precautions
Think about line voltage drop before selecting wire gauges. Select wire gauges that drop the voltage by 2% or less
of the rated voltage. Increase the wire gauge and the cable length when the risk of voltage drops increases.
Calculate line voltage drop with this formula:
Line voltage drop (V) = × wire resistance (Ω/km) × wiring distance (m) × motor rated current (A) × 10
-3
.
Precautions during Wiring
• Refer to “Yaskawa AC Drive Option Braking Unit, Braking Resistor Unit Instruction Manual
(TOBPC72060001)” for information about wire gauges and tightening torques to connect braking resistor units.
• Use terminals +1 and - to connect a regenerative converter or regenerative unit.
WARNING! Fire Hazard. Do not connect a braking resistor to terminals +1 or -. Use terminals B1 and B2 for the braking resistor
connections. If you connect a braking resistor to the incorrect terminals, it can cause damage to the drive and braking circuit and
serious injury or death.
Screw Shape
These tables use icons in Table 5.2 to show the shapes of the screw heads.
Table 5.2 Icons to Identify Screw Shapes
Icon Screw Shape
+/-
Slotted (-)
Hex socket cap (WAF: 5 mm)
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