Siemens 125-3208 Interlock and Auto Bypass on VFD Fault, Description, Settings

SED2 VFD Electronic Bypass Option Operating Instructions

Interlock and Auto Bypass on VFD Fault

Description

Interlock and Auto Bypass features are both active. Auto bypass now becomes auto bypass on a VFD fault only (bypass is initiated by the SED2 Fault and this digital output must always be programmed to VFD fault).

•All set-up is the same as with Interlock (see the Interlock section in Application Feature Setup).

•Hand bypass is now initiated by SED2 Fault.

•The Programmable Output is still used to initiate the proofing sequence.

Settings

Interlock and Auto Bypass requires that Controller board DIP Switches 2 and 3 are set ON.

NOTE: During operation, the Auto Bypass Enabled indicator is on steady. Also, the Interlock Start Logic Enabled indicator is on steady.

ON

1 2 3 4 5

VFD0120R1

	5
	4
		3
		2
ON
	1
	SW1

OFF

See the Auto Bypass without Interlock on VFD Relay Output and Interlock sections for parameter settings.

Wiring Example for Interlock and Auto Bypass on VFD Fault

Customer

Proof

DIGITAL INPUTS

Remote Start Input

Remote Safety #1

Remote Safety #2

Interlock Start

1

2

3

4

5

6

7

8

9

J2

Power to Customer Device

VFD0115R2

DIGITAL OUTPUTS

Programmable Output, NO COM NC

10

11

12

13J1

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