User Guide

Communication
40
Powerware
®
FERRUPS FE/QFE UPS (500 VA–18 kVA) User’s Guide : Rev A www.powerware.com
Communication Port
The communication port cable pins are identified in Figure 9 and the
pin functions are described in Table 5.
Figure 9. Communication Port
Table 5. Communication Port Pin Functions
Pin Function Function
2 Transmit Data (in)
3 Receive Data (out)
4 Request to Send
To enable hardware handshaking on these pins, call your service
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i
5 Clear to Send
g
p
y
representative.
6 +12V Level (0.01A) when the UPS is operating
7 Signal Ground
11 Contact opens when on
inverter
These relay contacts are rated at 25 Vac/Vdc and 250 mA (see “Remote
Monitoring” on page 47).
F
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V
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12 Contact closes when on
inverter
g
p
g
FE 500 VA–3.1 kVA models with serial numbers 25000 and greater have
equivalently rated DC solid state switches.
13 Common Inverter Signal
Contact
14 +12V, 0.5A (500 VA–3.1 kVA) or 0.3A (4.3–18 kVA) Do not use for setting logic levels.
18 +12V Level (0.01A) when UPS is operating
20 AS/400 Option
21 Remote Shutdown
23 Contact closes on alarm
These relay contacts are rated at 25 Vac/Vdc and 250 mA (see “Remote
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4
7
)
24 Common Alarm Signal Contact
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on page
4
7
)
.
Pins 23 and 25 change status when the UPS is turned off.
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5
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0
V
A
3
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5
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25 Contact opens on alarm
FE 500 VA–3.1 kVA models with serial numbers 25000 and greater have
equivalently rated DC solid state switches.
Pins 2–5 and 7 are for RS-232 communication, Pins 11–13 and 23–25 are for remote monitoring, and Pin 21 (used
with 6 or 18) is for remote shutdown. The following sections describe how to take advantage of these features. Pin 20 is
for option use only.