Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Analog Voltage and Pulse Train Reference - Manual (Page 27)

1.3 SERVOPACK Ratings and Specifications
1-7
1
Outline
∗1. Speed regulation by load regulation is defined as follows:
∗2. Refer to 1.3.1 Ratings for details on regenerative resistors.
∗3. Perform risk assessment for the system and be sure that the safety requirements are fulfilled.
Dynamic Brake (DB)
Activated when a servo alarm or overtravelling occurs or when the power
supply for the main circuit or servomotor is OFF.
Regenerative Processing Included
*2
Overtravel Prevention (OT)
Dynamic brake stop, deceleration to a stop, or free run to a stop at P-OT or
N-OT
Protective Function
Overcurrent, overvoltage, insufficient voltage, overload, regeneration error,
and so on.
Utility Function Gain adjustment, alarm history, JOG operation, origin search, and so on.
Safety Function
Input /HWBB1, /HWBB2: Baseblock signal for power module
Output EDM1: Monitoring status of internal safety circuit (fixed output)
Standards
*3 EN954 Category 3, IEC61508 SIL2
Option Module Fully-closed module, safety module
(cont’d)
Speed regulation =
No-load motor speed Total load motor speed
Rated motor speed
× 100%
- Rotation