Horner-apg QX751 OCS Manuale Utente Scaricare il pdf (Pagina 22)

CH. 4 MAN0890-02-EN

August 20, 2009 Page 22 of 96 ECN # 979

Figure 4.1 – Two-Point Ground Connection Test

4.5 QX751Primary Power Port

Table 4.1 – Primary Power Port Pins

Signal Pin Description

V+ Input power supply voltage

V- Input power supply ground

Frame Ground

Note: Power Supply Voltage Range is from 24VDC ±10%.

METAL WATER PIPE OR

OTHER GOOD GROUND

GROUND ROD

GROUND

DISCONNECTED

FROM SERVICE

GROUND RESISTANCE METER

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 95 96

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Horner-apg QX751 OCS Manuale Utente Pagina 22