PCS100 UPS-I
User Manual
125
The following control connections are available for wired remote control or monitoring of the PCS100 UPS-I.
12
13
14
15
16
12
13
14
15
16
12
13
14
15
16
12
13
14
15
16
3 wire
Start/Stop
4 wire
Start/Stop
Stop/
Inhibit
No external
control
Figure 13
-
2: Control wiring options
Note: “No external control” link is fitted in factory by standard.
13.2.2
Emergency Power Off (EPO)
Where required Emergency Power Off (EPO) function may be implemented
using a latched emergency mushroom button or control, to close a normally-
open shunt trip for the supply breaker (to remove supply to the PCS100 UPS-
I) and open a normally-closed Stop control circuit, as shown in figure 13-3, to
prevent the PCS100 UPS-I from supplying the load from energy storage.
12
13
14
15
16
EPO
Supply Circuit
Breaker
Shunt Trip Circuit
13.2.3
Relay Outputs
The product status is indicated by the relay outputs mounted on the front of the Auxiliary Master Module, and
may be used for external customer monitoring.
Relay
Product status or description
RUN
Active if ONLINE, DISCHARGING, DISCHARGE OVERLOAD,
DISCHARGE T/O or STORAGE EMPTY.
Not active if STATIC BYPASS or, FAULT
WARNING
Active if user WARNING condition present (temperature or overload
warnings) and during power up.
FAULT
Not active if FAULT or PCS100 UPS-I is powered down.
Table 13
-
1: PCS100 UPS
-
I relay outputs
15
Dry contact only; stop while open; reset on
open edge.
Inhibit Switch.
16
Loop Terminal
Remote Stop/Reset input.
(Looped from input 15). Inputs 13 to 15 are
configured as a 3-wire start/stop which is
modified as required according to parameter
541 Start Command
.
Figure 13-3: EPO wiring