Option Kits and Accessories
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7
Figure 7.1
- Location of the SRB boards
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Figure 7.1 shows the location of the SRB board and the location of the connector XC25 (used for the connection
of the SRB board signals) in the inverter.
The relay coils are available through the connector XC25, as presented in figure 7.1.
DANGER!
The activation of the Safety Stop, i.e., disconnection of the 24 Vdc power supply from the safety relay
coil (XC25: 1(+) and 2(-); XC25:3(+) and 4(-)) does not guarantee the electrical safety of the motor
terminals (they are not isolated from the power supply in this condition).
Operation:
1. The Safety Stop function is activated by disconnecting the 24 Vdc voltage from the safety relay coil (XC25:
1(+) and 2(-); XC25:3(+) and 4(-)).
2. Upon activation of the Safety Stop, the PWM pulses at the inverter output will be blocked and the motor will
coast to stop.
The inverter will not start the motor or generate a rotating magnetic field even in the event of an internal
failure (pending certification).
The keypad will display a message informing that the Safety Stop is active.
3. Apply 24 Vdc voltage to the safety relay coil (XC25: 1(+) and 2(-); XC25:3(+) and 4(-)) to get back to
normal operation after activation of the Safety Stop.
XC25
