Physical Installation 1 - 7
Bypass Product Options
Option B
3 Contactor bypass: Isolates the drive circuit by adding a separate drive input contactor (100 kA short circuit current rating is
provided when using this option in conjunction with option D below).
Option C
Motor Circuit Protector (MCP)/Disconnect: Replaces the standard input disconnect switch and provides short circuit protection
integral with the Drive and Bypass package. The MCP includes a through the door, padlockable operator mechanism. Without
this option, short circuit protection must be provided by others on the input side of the Drive and Bypass unit.
Option D
Fused input disconnect replaces the standard input disconnect switch and provides 100kA of short circuit protection for the
drive and bypass package.
Option G
Drive Input Disconnect Switch: Provides a disconnect means for the input side of the Drive, for Drive isolation capability
during Bypass operation. This disconnect is located inside the enclosure with an integral operating handle.
Option J
Enable Embedded Serial Communications: A no cost option. The Drive in a Bypass unit is capable of network communication
via one of 3 embedded protocols. Specifying option J will enable the Metasys N2 protocol and will provide the necessary
parameter settings and wiring (jumpers) to be network ready when delivered (Project specific H5-0X parameters are setup by
the user).
Option L
Serial Communication, Echelon LonWorks: An isolated RS-422/485 circuit board provides LonTalk protocol for network
communication to a BAS. This option plugs into the CN2 connection on the Drive control circuit board.
Option N
Input Capacitive Network Radio Frequency Interference Filter: Electronic equipment can be sensitive to low levels of voltage
distortion and electrical noise. This passive wye-delta capacitive filter is intended for installation on the VFD input in order to
protect other sensitive electronic loads, it provides attenuation of conducted RFI and EMI.
Option P
Pressure to Electrical Transducer: This transducer is employed when converting a pneumatic signal to an electrical signal for
use as the Drive speed command input. The need for this option comes up on retrofit applications when the pneumatic signal
that formerly controlled the pneumatic actuator on Inlet Guide Vanes (IGV), for example, is now to be used to control the fan
speed via the Drive. This option is wired to terminals TB5-7, TB5-8 and TB5-9, parameters H3-10 and H3-11 are used for
final field calibration of this input if there is jobsite variation from the typical 3 to 15 PSIG pneumatic signal input range.
Option U
Enable Embedded Serial Communications: A no cost option. The Drive in a Bypass unit is capable of network communications
via one of 3 embedded protocols. Specifying option U will enable the Siemens APOGEE protocol and provide the necessary
parameter settings and wiring (jumpers) to be network ready when delivered (Project specific H5-0X parameters are setup by
the user).
Option V
Enable Embedded Serial Communications: A no cost option. The Drive in a Bypass unit is capable of network communications
via one of 3 embedded protocols. Specifying option U will enable the Modbus protocol and provide the necessary parameter
settings and wiring (jumpers) to be network ready when delivered (Project specific H5-0X parameters are setup by the user).
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