Sanyo Denki Sanmotion R 3E S, Instruction Manual, Page: 441 / 514

11.2 Selection of regenerative resistor
11-12
1
1
Selection
11.2.7 Thermostat connection of external regenerative resistor
Connect a thermostat to either of "the general-purpose inputs CONT1-CONT8". Depending on
the connected general-purpose input signal terminal, please set Group9 ID40 "External Trip
Input Function [EXT-E]".
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Example: when connecting the thermostat to CONT6
The external trip function will be valid when "0DH:CONT6_OFF" is set to Grop9 ID40
"External Trip Input Function" and CONT6 is turned off. Alarm AL.55 will be output from the
servo amplifier when the thermostat of a generative resistor trips (the contact point comes off)
because of heating. Refer to "4.2 Wiring with host unit for the wiring method".
11.2.8 Protection function of regenerative resistor
The regenerative resistor protection function is specified by parameter selections. Appropriate
protection for regenerative resistor is applied by setting parameters according to the type of
regenerative resistor to be connected. Set the appropriate parameters by following the
instructions given below.
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The two parameters requiring settings are given below.
 System parameter ID03 “Regenerative resistor selection”
 Must set "01: Built-in_R" when internal regenerative resistor is used.
 Must set "02: External_R" when external regenerative resistor is used.
 Group9 ID40 “External Trip Input Function”
 When thermostat is connected to the servo amplifier, please set Group9 ID40
"External Trip Input Function [EXT-E]" depending on the connected general-purpose
input signal terminal.
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The protection functions are divided into three main types:
 Protection for a short-time, high load factor (using built-in or external regenerative
resistor):
 An error is detected when the power absorption of regenerative resistor is extremely
high over a short time period (100msec to 10 seconds). A ‘Regenerative Error’ alarm
“AL.43” is issued when this error is detected.
 Protection when allowable power absorption is exceeded for long time
(using built-in regenerative resistor):
An error is detected when the power absorption of the built-in regenerative resistor
exceeds the allowable power absorption over a long time period (from a few seconds to
a few minutes). An ’Internal Overheat’ alarm “AL.54” is issued when this error is
detected.
 Protection during thermostat operation of the external regenerative resistor:
An error will be detected when External Trip Function works. An ’External Error’ alarm
“AL.55” is issued when this error is detected.