COMPONENTS
Ve ctor F® Se ries ▪ S ervice Ma nual ▪ M N- 46 89 5 ▪ R ev 1 ▪ 7/ 20
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Control Board (CB)
VMC-PHD-001947
TELCO VFD OFF
SIEMENS VFD ON
ONÍ
V
V
V
Ref. Description Ref. Description Ref. Description
P2 Drive 1 communication P15 Jumper LED 9 Chamber 2 call for heat
P3 Input signals P16 Jumper LED 10 Chamber 3 call for heat
P5 Lights P17 Not used LED 11 Chamber 4 call for heat
P6 Input from 12VDC power
supply
P18 Input from switches LED 12 Chamber 1 light
P8 Thermocouple inputs P21 Output to blower/fan relay
RL1
LED 13 Chamber 2 light
P9 Heater control signal to SSRs J3 Speaker LED 14 Chamber 3 light
P11 Communication to UI board J30 AC input from the
transformer
LED 15 Chamber 4 light
P12 Drive 2 communication J33 AC input from the
transformer
D21 RS485 communication
P13 Drive 3 communication LED 2 Cooling fan power D22 RS485 communication
P14 Drive 4 communication LED 8 Chamber 1 call for heat S1 Chamber VFD selection
Telco VFD set to OFF
Siemens VFD set to ON
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