19
YT-3300/3301 series
4.4.4
Double acting actuator – YT-3301
Double acting linear (left) and rotary (right) type actuator
4.5
Connection – Power
4.5.1 Safety
When installing in hazardous and explosive gas area, conduit tube or pressure-proof
packing union must be used. The compound charging box should be the flameproof
type and must be sealed completely.
Conduit entry connection tap is PF 1/2 or G 1/2.
Before connecting terminal, ensure that the power is off completely.
Do not open the
cover when the power is still alive.
Please use ring-type rug to protect against vibration or any other external impact.
Positioner with PTM options must be supplied 10~28V DC separately. For L/S option,
separate 12-24V DC must be supplied.
For both options, it should not exceed 30V
DC.
Positioner should be grounded.
Please use twisted cable with conductor section are 1.25mm
2
and that is suitable for
600V (complying to the conductor table of NEC Article 310.) The outer diameter of the
cable should be between 6.35 ~ 10mm. Use shield wire to protect against electro-
magnetic field and noise.
Please do not install the cable near high noise equipments, such as high-capacity
transformer or motor.
