Electro-Pneumatic Positioner
YT-1000 / 1050 series
Product Manual
Ver. 1.30
57
6
Connection – Power
6.1
General
➢
There are one or two conduit entries on the positioner. See “2.4 Product Code for Conduit entry
treads.
➢
Positioner usually uses 4 ~ 20 mA DC.
➢
Positioner with PTM options must be supplied with
9 ~ 28 V DC
separately.
➢
Positioner should be grounded.
➢
Please do not install the cable near high noise equipment, such as high-capacity transformer or
motor.
➢
To maintain Type 4X and IP66 rating, when installing threaded conduit, use type PTFE tape
according to instructions.
6.2
Flameproof enclosure type
6.2.1
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.
➢
Before connecting terminal, ensure that the power is off completely.
Do not open the cover when
the power is still alive.
➢
Please use ring terminal to protect against vibration or any other external impact.
➢
Please use twisted cable with conductor section are 1.25 mm
2
and that is suitable for 600 V
(complying with the conductor table of NEC Article 310). The outer diameter of the cable should
be between 6.35 ~ 10 mm. Use shield wire to protect against electro-magnetic field and noise.
Fig. 6-1: Pressure-proof packing union
Fig. 6-2: Flame proof type compound charge box
