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Operation
75
300314330_002_C7 - 05/2021 - © Leybold
4.4.3 Relay Option Board
Fig. 4.3 Relay option board: Connections
V1000
RELAY OPTION
BOARD
CN5
CN5
2A
2C
2B
3A
3C
3B
1A
1C
1B
K1
K3
K2
KC
P1
AM
P2
PC
SHIELDED LINE
CN5 : Option connector
TB1
TB2
TB3
TB4
TB3
TB2
TB1
TB1-2
Contact rating TB1 - TB3
250 V AC, max. 1 A
30 V DC, max. 1 A
(min 5 V DC, 10 mA)
Alarm
(Warning)
Failure
Pump rotating
Frequency
converter
Terminal Block
Symbol
PIN No. Function
TB1
1A
K1 Output, Normally Open (NO) contact
1B
K1 Output, Normally Closed (NC) contact
1C
K1 Output, Common
TB2
2A
K2 Output, Normally Open (NO) contact
2B
K2 Output, Normally Closed (NC) contact
2C
K2 Output, Common
TB3
3A
K3 Output, Normally Open (NO) contact
3B
K3 Output, Normally Closed (NC) contact
3C
K3 Output, Common
TB4
K1
K1 control signal
K2
K2 control signal
K3
K3 control signal
KC
Common for K1,K2 and K3