Vertiv EXM 0080kTK16FN01000, User Manual

Page: 45 / 156

Chapter 3 Electrical Installation 31
Liebert EXM 80kVA ~ 200kVA UPS User Manual
Pin Name Meanings Pin Name Meanings
17 GND_DRY
External maintenance
isolation switch status
(24V/10mA rated); Pin17
/Pin19 open for QOP
closed
18 CHG SHUT
Charger shutdown
(24V/10mA rated).
Pin18/Pin20 shorted
for charger off
command
19 QOP STATUS 20 GND_DRY
21 QBP STATUS
External maintenance
switch status
(24V/10mA rated);
Pin21/Pin23 shorted for
QBP closed
22 QE STATUS
External output switch
status (24V/10mA
rated); Pin22/Pin24
open for QE closed
23 GND_DRY 24 GND_DRY
25 NC Reserved 26 NC Reserved
27 UT1 485+ RS485 channel #1, 485+ 28 UT2 485+
RS485 channel
#2,485+
29 UT1 485- RS485 channel #1, 485- 30 UT2 485-
RS485 channel #2,
485-
31 GND_MON Reserved 32 NC Reserved
Note
For dry contact port J26, Pin28, Pin30 and Pin27, Pin29 must adopt the metal wire shielded twisted-pair cable, and
the end connecting to the UPS must be well connected to the enclosure.
3.2.5 Programmable Dry Contact Ports J23 ~ J25
The dry contact ports J23 ~ J25 are shown in Figure 3-10 and described in Table 3-6 and Table 3-7. The
dry contact voltages are 24Vdc/250Vac, and the current is 5A. 1, 3, 5 is a group of dry contacts, and 2, 4, 6
are another group of dry contatcs. These six-goup of dry contacts are programmable via the Paramset,
and you can select any one from the output signals 1~9 in Table 3-6.
1 3 5
J23
1 3 5 1 3 5
J24 J25
2 4 6 2 4 6 2 4 6
Figure 3-10 Dry contact ports J23 ~ J25
Table 3-6 Selectable dry contact ports
Port Pin Meanings
1. Bypass
back-feed
Normally open
contact Bypass back-feed normally open contact. Closed when there is
bypass back-feed
Common contact Bypass back-feed common contact
Normally closed
contact
Bypass back-feed normally closed contact. Open when there is
bypass back-feed
2. Inverter state
Normally open
contact
Inverter state normally open contact. Closed when the inverter is on
Common contact Inverter state common contact