Inovance SV660P Series, Hardware Manual

Page: 104 / 156

Wiring
‑103‑
Table 3–25 Description of the absolute encoder battery
Battery
Specifications
Item
Rated Values
Condition Minimum
Value
Typical
Value
Maximum
Value
Output: 3.6 V,
2500 mAh
Recommended
manufacturer
and model:
Shenzhen
Jieshun,
LS14500
External battery
voltage (V)
3.2 3.6 5
In standby state
[2]
Circuit fault
voltage (V)
‑ 2.6 ‑
In standby state
Battery alarm
voltage (V)
2.85 3 3.15 ‑
Current
consumed by the
circuit (uA)
‑ 2 ‑
In normal
operation
[1]
‑ 10 ‑
In standby state,
shaft at standstill
‑ 80 ‑
In standby state,
shaft rotating
Ambient
temperature (℃)
0 40
Same as the
motor
Storage
temperature (℃)
‑20 60
The preceding values are obtained under an ambient temperature of 20℃.
Note
●
[1] During normal operation, the absolute encoder supports one‑turn or multi‑turn
data counting and transceiving. Power on the servo drive after connecting the
absolute encoder properly. The encoder starts data transceiving after a short
delay of about 5s upon power‑on. The motor speed must be lower than or equal
to 10 RPM during transition from the standby state to the nomral operation state
(upon power‑on). Otherwise, Er.740 (Encoder fault) may occur. In this case, you
need to power off and on the servo drive again.
●
[2] The "standby state" means the encoder counts the multi‑turn data by using the
power from the external battery when the servo drive power supply is not
switched on. In this case, data transceiving stops.
Design life of the battery
The following calculation only covers the current consumed by the encoder.
Assume that the drive works normally for T1 in a day, the motor rotates for T2 after
the drive is powered off, and the motor stops rotating for T3 after power‑off [unit:
hour (H)].
For instance: