Yaskawa MP920 User's Manual Design - Manual (Page 480)

11 Maintenance and Inspection
11.3.3 Specifications of Battery Module
11-8
11.3.3 Specifications of Battery Module
The table below shows the specifications of the Absolute Encoder Battery Module.
Specifications of Battery Module
Item Specifications
Name Absolute Encoder Battery Module
Model JRMSP-120XCP96000
Maximum number of axes
to which power can be
supplied 8 axes
Indicators POWER: Lit when external 24 VDC power is supplied to CN1 con-
nector. This indicator is not lit while a battery voltage check refer-
ence is being issued.
ALARM1: Lit when the battery voltage drops below 3.3 V.
ALARM2: Lit when the battery voltage drops below 3.0 V.
Battery Specifications Model: ER6VC3 Battery (Toshiba) with connector (Yaskawa speci
fications)
Voltage: 3.6 V
Current capacity: 2,000 mAh
Maximum number of days
in which battery must be
replaced after low battery
voltage is detected 14 days after the ALARM1 indicator lights up (battery voltage drops
below 3.3 V), provided that all eight axes are connected, no power is
supplied to the Motion Module or Servo Amplifier, and the motor
does not rotate due to external force, etc.
External Input Signal Signal type: 24 VDC, sourcing input (sinking input)
Input current: 5 mA
OFF current (1 mA or less)
Input conditions: ON voltage (supply voltage: -9 V) or more
(sinking: 9 V or more), OFF voltage (supply
voltage: -5 V) or less
Input impedance: 4.7 k
Ω
Signal
name CHK Battery voltage check reference. This signal
checks battery voltage when turned ON.
External Output Signal Signal type: 24 VDC, sinking output (open collector)
Load current: 50 mA, OFF current (1 mA or less)
Load voltage: 20.4 to 28.8 VDC, 35 VDC (at peak), ON voltage
(1.5 V, 50 mA)
Signal
names ALM1 Alarm 1. This signal is turned OFF when
battery voltage drops below 3.3 V.
ALM2 Alarm 2. This signal is turned OFF when
battery voltage drops below 3.0 V.
PON Power ON. This signal is ON while 24 VDC
external power is being supplied to CN1
connector. This signal is OFF while battery
voltage check reference is being issued.
Delay Time Power ON → ALM1/ALM2 output: 100 ms or less
CHK signal input → ALM1/ALM2 output: 10 ms or less
Protective Circuit Battery charging prevention diode
Supply Voltage 20.4 to 28.8 VDC (external power supply)
Current Consumption 0.2 A or less