Standard I/O Assigned For Bypass; Additional I/O Assigned For Bypass (Opt-B5) - Siemens BT300 Operator's Manual

Bypass variable frequency drive
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Standard I/O Assigned for Bypass

Additional I/O Assigned for Bypass (OPT-B5)

Siemens Industry, Inc.
Digital Input 1: Customer Supplied Run/Stop.
Digital Input 2: Remote Safety No. 1.
Digital Input 3: Remote Safety No. 2.
Digital Input 4: Interlock Feedback (if the interlock function is enabled).
Digital Input 5: Overload.
Digital Input 6: Essential Services Activation (if the essential services function is
enabled).
Relay Output 1: Run (default value, no change for bypass option).
Relay Output 2: Fault (default value, no change for bypass option).
Relay Output 3: Ready (default value, no change for bypass option).
OPT-B5, Relay Output 1: Bypass contactor control (M1).
OPT-B5, Relay Output 2: Output contactor control (M2).
OPT-B5, Relay Output 3: Damper logic control (if the interlock function is enabled).
NOTE:
The OPT-B5 option card may be installed in any of the three I/O card slots. However,
if more than one OPT-B5 card is installed, the card in the lowest lettered slot is
assigned to the bypass I/O.
Remote safety No. 1 and No. 2: These inputs trigger a fault on the drive and also open
Bypass contactor (M1) and Drive output contactor (M2).
Interlock start: Feedback signal from a damper or other external actuator. If interlock
start functionality is enabled, this input needs to be on in order to start the drive.
Interlock start functionality can be activated with a parameter. This digital input is
configured by using Drive's existing Run Interlock 1 digital input signal (P1.3.5.1.12, ID:
1041).
Remote start: Start command when the Drive is in IO control. When Bypass is active
this input is used to close the Bypass contactor if the functionality has been activated
with Remote Bypass Enable parameter and the start command source for Auto has
been selected as I/O. This digital input is configured by using the drive's existing Ctrl
Signal 1A digital input signal (P1.3.5.1.1, ID: 403).
Overload trigger: Feedback from an overload relay. Triggerss a fault on the drive and
opens a bypass contactor.
Essential services: This input is not automatically configured when the electronic
bypass is enabled. If the essential services function is enabled through the Essential
Services Enable parameter, Digital Input 6 is configured for the function.
When this input is on, the drive is forced into bypass mode, the drive contactor
(M2) is opened, and the bypass contactor (M1) is closed.
Essential services functionality must be enabled through the Bypass Wizard or with
a separate parameter.
When the essential services function is active, all the other commands and
safeties, for example Overload, are blocked.
If interlock logic is enabled and the essential services function is activated, the
bypass contactor (M1) closes after ten seconds if the feedback signal is not
received from the damper.
BT300 Bypass Operator's Manual
Application Features (Electronic Bypass Only)
Standard I/O Assigned for Bypass
33
DPD01391
2016-08-05

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