R88A-CSU010C Omron, R88A-CSU010C Datasheet - Page 253

• Manufacturer Part Number: R88A-CSU010C
• Description: ABSOLUTE ENCODER CABLE,10M
• Manufacturer: Omron

Specifications of R88A-CSU010C

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Specifications
j Torque and Rotation Speed Characteristics (Standard Cable: 3 m;
j Servomotor and Mechanical System Temperature Characteristics
200-VAC Input)
U-series AC Servomotors use rare earth magnets (neodymium–iron magnets). The temperature co-
efficient for these magnets is approximately -0.13%/ C. As the temperature drops, the Servomotor’s
momentary maximum torque increases, and as the temperature rises the Servomotor’s momentary
maximum torque decreases. When the normal temperature of 20 C and -10 C are compared, the
momentary maximum torque increases by approximately 4%. Conversely, when the magnet warms
up to 80 C from the normal temperature of 20 C, the momentary maximum torque decreases by
approximately 8%.
Generally, in a mechanical system, when the temperature drops the friction torque increases and the
load torque becomes larger. For that reason, overloading may occur at low temperatures. In particu-
lar, in systems which use deceleration devices, the load torque at low temperatures may be nearly
twice the load torque at normal temperatures. Check with a current monitor to see whether overload-
ing is occurring at low temperatures, and how much the load torque is. Likewise, check to see wheth-
er there abnormal Servomotor overheating or alarms are occurring at high temperatures.
An increase in load friction torque visibly increases load inertia. Therefore, even if the Position Driver
parameters are adjusted at a normal temperature, there may not be optimal operation at low temper-
atures. Check to see whether there is optimal operation at low temperatures too.
R88M-U1K030H/T
R88M-U1K030V/X
Short-term op-
eration area
(within 1 s)
Continuous op-
eration area
R88M-U1K530H/T
R88M-U1K530V/X
Short-term op-
eration area
(within 1 s)
Continuous op-
eration area
R88M-U2K030H/T
R88M-U2K030V/X
Short-term op-
eration area
(within 1 s)
Continuous op-
eration area
Chapter 5
5-31