User Manual

Siemens Industry, Inc.
Building Technologies Division
P/N 315-099321-74
TB3 Currently NOT USED.
TB4 24VDC Non-Power Limited Output Terminal. This terminal is non-power
limited and can supply up to 12A. When the current draw is exceeded, it
shuts down, lights its associated LED and sends a fault condition to the
NCCNT WAN.
This output is normally connected to the input terminals of the CC-5.
This output must remain within the enclosure or within 20 feet in rigid
conduit. All wiring must be in accordance with Article 760 of NEC or
local building codes. (See Figure 2.)
Output Voltage: 24VDC +10%, -15%
Output Current: 12A max
TB4-1: (+) terminal
TB4-2: (-) terminal
The total cumulative sum of the 24VDC output (power limited + non-power limited)
must not exceed 12A. Over current draw will initiate a PSC-12 shut down.
The main AC power line must be turned OFF prior to installation.
P4 Currently NOT USED. P4 contains a factory installed plug. Do not
remove the plug from P4.
P5 Currently NOT USED.
P9 Connects the back-up battery to the PSC-12. Battery size has to be
calculated to ensure that the battery size can support the system load
during battery back-up condition. Refer to the Battery Calculation form to
determine the required battery size of the system.
P10 Set the jumper on P10 to ENABLE (left hand) position to enable ground
fault protection.
Always apply AC power first followed by the battery.
P12 AC input connector from the PTB, terminals P4 or P5.
60-pin Connects the PSC-12 to the system. It is a straight-through connection
between the two connectors and provides the 24VDC rated at 2A and
6.2VDC rated at 2A that powers the CC-5 modules. It also contains all
the communication signals and system signal bus that is necessary for
the proper operation of the system.
These connectors are power limited. If the PSC-12 is located in a
different mounting plate in the enclosure, an optional extended ribbon
cable, Model BCL (P/N 500-633997) must be used.
Input Voltages: 24VDC, 6.2VDC
Max Current : 2A @ 24VDC
2A @ 6.2VDC