Yokogawa YFGW710 - Manual (Page 28)

A3-8
IM 01W01F01-01EN
A3.2 Cable Connection
This chapter describes the connection of the power supply cable, grounding cable, network ca-
ble, and antenna extension cable and also the mounting of the antenna.
l The explosion proof device must be wired according to the related laws and regulations.
A3.2.1 Power Supply Cable Connection
This section describes the power supply cable wiring.
l
Wiring
Pull the power supply cable into the gateway through the power cable ground. Connect the
power supply cable to the power supply terminal in the gateway.
l
Recommended power supply capacity
Output voltage range 12 – 24 V DC (Supplied to YFGW710)
Output Current More than 1.5 A DC *1
*1: This equipment flows the inrush current at start-up as explained below. Therefore, the power source should have enough current
output capacity several times as high as the normal current consumption.
l Inrush Current
The input current at the start up (inrush current) is significantly larger than the steady state cur-
rent (see the table). Ensure that the power supply and its protective device can accommodate
this inrush current.
Table A 3-1 Inrush current of YFGW710
Item Specification Remarks
Inrush Current 30 A 2 ms *2 at 24 V DC
*2: This note corresponds when the power line breaker of YFGW710 is turned-on in condition the power source is running.
IMPORTANT
YFGW710 does not have a power switch. Set a dedicated breaker for the external power line to
turn ON/OFF the device.
l Applicable Cable (Insulated wire for industrial equipment)
Examples:
• 600 V polyvinyl chloride insulated wires (IV): JIS C3307
• Polyvinyl chloride insulated wires for electrical apparatus (KIV): JIS C3316
• 600 V grade heat-resistant polyvinyl chloride insulated wires (HIV): JIS C3317
• Heatproof vinyl insulated wires VW-1 (UL1015/UL1007)
Wire Size
• Core: AWG14 to 13 (2 to 2.6 mm 2 )
Terminal Treatment
• Ring terminal for M4: With insulation covers