Avery Weigh-Tronix ZM401, Service Manual

Page: 90 / 156

90 ZM400 Series Indicators Service Manual
8 Option cards
8 Option cards
The ZM400 has several option cards available. Only one card can be installed in the
indicator. This chapter covers the description and installation of these cards:
l
Analog output card on page 91
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Current Loop/RS485/RS422 card on page 92
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USB Device option card on page 93
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Wireless Ethernet communication (802.11g) card on page 94
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Internal 120 VAC relay card (for IP69K only) on page 95
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2nd Scale Input 5VDC Excitation card on page 97
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2nd Scale Input 10 VDC Excitation w/STVS card on page 98
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External I/O Interface card on page 99
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AC input, 4 Inputs (120-240VAC) card on page 100
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DC input, 4 inputs(4-30VDC) card on page 101
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AC output, 4 relays (20-240VAC) card on page 102
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DC output, 4 relays (3-60VDC) card on page 103
Below is an example of an option card. All the option cards connect to the main board
by the connector pins on the bottom of the option card to the connector at terminal J4.
Screws, at the four locations noted by the arrows, hold the board in place.
Figure 8.1 Option card example
On all the option cards, S1 switch settings must all be OFF to operate.
Connector pins on
bottom of the card.