Siemens SED2 VFD Operating Instructions Manual page 38

SED2 VFD Electronic Bypass Option Operating Instructons
VFD Bypass
Input Hand
Input
On/Off Start
Contactor
Bypass
Contactor
VFD
Remote
Enable Overload
Start
Relay
Output
Contactor
Motor
VFD Fault
STOP
Auto Bypass Enabled
RESET
Safety Fault
Essential Services
Overload Fault
Enable Commanded Proofed
INTERLOCK START LOGIC
NOTE:
3-Contactor KEYPAD INTERFACE
Keypad
Ribbon Cable for Keypad
Shown.
Pushbuttons and Indicators
Basic Sanity Test LED
DIGITAL
INPUTS
DIGITAL Programmable Output, NO
OUTPUTS
Bypass Select, COM
Bypass Running, COM
Overload Fault, COM
30
VFD INTERFACE
VFD DO#1, NO 1
J4
COM 10
VFD DO#2, NO
2
COM
9
VFD DI#1
3
Isolated 0V
8
VFD DI#2
4
7
VFD DI#3
5
6
J3
J8
Factory Use Only
DIP Switch
J2
Remote Start Input 1
2
Remote Safety #1 3
4
Remote Safety #2 5
6
Interlock Start 7
8
Essential Services 9
10
Overload Trigger 11
12
J1
13
COM
14
NC
15
VFD Fault, NO
16
COM
17
NC 18
Drive Select, COM
19
NO
20
21
NO
22
23
NO
24
25
NO
26
J6
Override Jumper
CONTACTOR
CONTROLS
CUSTOMER
SUPPLIED
3-PHASE
POWER
INPUT DEVICE
ELECTRONIC BYPASS
Figure 12. Controller Board Inputs and Outputs.
VFD DO#2, NO
VFD DO#1, NO
MCU
CONTROLLER
BOARD
TRANSFORMER
J7
8 9 10 11 12 13 14
3
7 6 5 4 3 2 1
OF VFD WITH
5 Remote Start/Stop
VFD DI#3
VFD DI#2 8
Interlock Start Confirm
Isolated 0V 28
6
VFD DI#1 OK to Run
COM 25
SED2 Relay
24
COM 22
SED2 Fault
21
HIGH VOLTAGE
FUSE
F3
HIGH VOLTAGE/
120V
F1 STEP-DOWN
POWER
TRANSFORMER
J5
2 1
FUSE
F2
Earth Ground
120V Neutral
120V Hot
INPUT
CONTACTOR
OUTPUT
CONTACTOR
BYPASS
CONTACTOR
Siemens Building Technologies
SED2
VFD
FUSE
F4
MOTOR