Yaskawa BACnet MS/TP - Manual (Page 14)

WARNING
Do not touch any terminals before the capacitors have fully discharged.
Failure to comply could result in death or serious injury.
Before installing the option, disconnect all power to the drive. The internal capacitor remains
charged even after the power supply is turned off. The charge indicator LED will extinguish
when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least five
minutes after all indicators are off and measure the DC bus voltage level to confirm safe
level.
Do not use damaged wires, stress the wiring, or damage the wire insulation.
Failure to comply could result in death or serious injury.
Fire Hazard
Tighten all terminal screws to the specified tightening torque.
Loose electrical connections could result in death or serious injury by fire due to overheating
of electrical connections.
NOTICE
Observe proper electrostatic discharge procedures (ESD) when handling the drive and
circuit boards.
Failure to comply may result in ESD damage to the drive circuitry.
Do not use unshielded cable for control wiring.
Failure to comply may cause electrical interference resulting in poor system performance.
Use shielded, twisted-pair wires and ground the shield to the designated shield ground
location.
Check all the wiring to ensure that all connections are correct after installing the option
and connecting any other devices.
Failure to comply could result in damage to the option.
5 Installation Procedure
14 YASKAWA TOEP YEACOM 08A A1000 Option BACnet MS/TP SI-B3 Installation & Technical Manual