VD2 servo DI and DO port can support NPN and PNP?

http://docs.we-con.com.cn/wiki/servo/view/2.%20User%20Manual/VD2%20SA%20Series%20User%20Manual/04%20Wiring/#H4.4.5Digitalinputandoutputsignals

DI DO port can support the NPN or PNP.

(1) Digital input circuit

①When the upper device is relay output

Figure 4-13 Relay output

②When the upper device is open collector output

Figure 4-14 Open collector output

(2) Digital output circuit

①When the upper device is relay input

Figure 4-15 Relay input

②When the upper device is optocoupler input