Recommended Wire Size And Torque Requirements - Toshiba 4200FA Installation And Operation Manual

No. TERMINAL
1 Low Batt
2 Batt
Discharge
3 Fault
4 N/C
5 Inverter
Supply
6 Inverter
Supply
7 P24A3
8 Remote Run*
9 P24A3
10 Remote
Stop*
11 Bypass
12 Common
13 EPO
EPO
14
15 – 18 N/C
*
Remote Run and Remote Stop must be enabled via the front panel. Once remote mode is enabled, the key switch on the front
panel is rendered inoperable until remote mode is disabled via the front panel.
4.4.1

Recommended Wire Size and Torque Requirements

UPS Control and Battery Interface 50 kVA
TERMINAL
(TERMINAL #)
UPS CONTROL CIRCUITS
BATTERY CONTROL
CIRCUITS (3-6)*
*Indicates Class 1 wiring methods are to be used. Maximum Wire Size is 12 AWG.
4200FA Installation and Operation Manual
FUNCTION
(Dry Contact) Closed when battery voltage drops below minimum.
(Dry Contact) Closed when the Internal/external batteries are discharging into the
DC Bus.
(Dry Contact) Closed when fault occurs. Generic fault warning, could mean any of
several things, DCOC (DC Over Current), DCUB (DC Unbalanced) etc.
(Not Connected)
(Dry Contact) Closed when inverter is operating normally.
(Dry Contact) Closed when inverter is operating normally. (Duplicate terminals)
24 Vdc 1 A max. source for Remote Run.
Apply 24V to switch UPS to Inverter Mode
NOTE: The connection to the remote run inputs on terminals 7 and 8 must be a
discrete dry contact and must not be connected to other powered circuits.
Connection to other powered circuits may result in unpredictable circuit operation
or failure.
24 Vdc (P24A3)
Apply 24Vdc to switch UPS to Static Bypass. The UPS will transfer to bypass as
soon as the input and bypass power are in sync.
NOTE: The connection to the remote stop inputs on terminals 9 and 10 must be a
discrete dry contact and must not be connected to other powered circuits.
Connection to other powered circuits may result in unpredictable circuit operation
or failure.
(Dry Contact) Closed when UPS is in Bypass.
NOTE: Even though Remote Stop may be triggered, the UPS is not in Bypass until
Terminal 11 closes.
(Dry Contact) Short across 13 and 14 will start the shut down all power in the UPS
including bypass and battery backup, and will cause the Battery Shunt Trip to open
the external battery breaker.
(Dry Contact) Short across 13 and 14 will shut down all power in the UPS
including bypass and battery backup, and will cause the Battery Shunt Trip to open
the external battery breaker.
(Not Connected)
Minimum Wire Size and Torque Requirements
UPS Control and Battery Interface Circuits
USE MINIMUM 75 °C COPPER WIRING
(1-24)*
50 kVA
TIGHTENING
AWG* TORQUE
14-16 8 in-lbs.
14-16 8 in-lbs.
29