MODEL: MDP-PA

MDP-PA SPECIFICATIONS

ES-8207 Rev.9 Page 2/4

http://www.m-system.co.jp/

CONNECTION EXAMPLES

Protected Device

M-RESTER

G

1

3

A

C

2

SHLD

G

+

–

B

PA

BUS

Grounding

≤ 100Ω

Cross wiring

*2

*1

*1. Cross wire to the surge protector’s ‘G’ terminal when grounding the shield wire.

If the shield wire is not to be grounded, connect it to ‘B’ terminal.

*2. Follow instructions provided with the protected device whether ‘2’ terminal

should be connected or not. However, if the shield terminal of the protected

device is not isolated from PA BUS, DO NOT connect ‘2’ terminal to the

protected device.

■ CONNECTION DIAGRAM

Protected

Devices

(Nodes)

M-RESTER

G

G

G

G

M-RESTER

G

G

G

Protected

Devices

(Nodes)

When the distance between nodes are relatively long (e.g. grouped and separated by cabinets),

install the MDP-PA by each group of devices. Insert the MDP-PA at the surge side of the network.

For detailed information on the network, refer to that provided by PROFIBUS International or

Fieldbus Foundation.

*1. Fieldbus devices complying with IEC 61158-2 operate by a supply voltage between

9V and 32V DC.

Take the MDP-PA’s internal series resistance into consideration when determining the

cable distance if there is a large current flow on the bus line.

Crossover Wire

Crossover Wire

*1

■ NETWORK CONFIGURATION