Servotronix CDHD-003, Quick Start Manual

Page: 45 / 66

CDHD Power Board 120/240 VAC
Quick Start Guide 45
3 Power Board 120/240 VAC
Overview
On most CDHD 120/240 VAC models, the power board has the following interfaces:
STO – P1
Motor – P2 (P4 on CDHD-020/024)
Regeneration Resistor – P3 (P5 on CDHD-020/024)
AC Input Voltage – P3, P4 (P2, P3 on CDHD-020/024)
Make sure the main voltage rating matches the drive specification.
Applying incorrect voltage may cause drive failure.
Do not apply power until all hardware connections are complete.
Safe Torque Off (STO) – P1
STO uses interface P1 on all CDHD 120/240 VAC models.
Safe torque off (STO) is a safety function that prevents the drive from delivering
power to the motor, which can generate torque.
STO Enable and STO Return must be connected to enable CDHD operation. The
STO Enable signal voltage must be 24 VDC.
Note : If the application does not require STO control, jumper pin 4 to pin 1,
and pin 3 to pin 2, to bypass the STO.
STO Bypass
STO Interface
Pin Pin Label Function
1 24V STO Enable
2 GND STO Return
3 24V Return, provided by the drive
for use with emergency stop circuit
4 24V Supply, provided by the drive
for use with emergency stop circuit