User Manual of EM760 High-Performance Inverter When replacing the communication function of the EM303B inverter, acceleration and deceleration time should be written. The function codes of acceleration and deceleration time are F00.09 and F00.10 for EM303Band F00.14 and F00.15 for EM760. The original PLC program writes acceleration and deceleration time into F00.09 and F00.10 during communication. Normal communication between EM760 and PLC can be secured through mapping without having to altering the PLC program. Just map the first 2 pieces of data of F00.09: F00.09 and F00.10 to F00.14 and F00.15 respectively. Settings of mapping parameters are as follows:
F45.00=1 (mapping effective) F45.01=9 (source address 1) F45.02=14 (target address 1) F45.04=10 (source address 2) F45.05=15 (target address 2) Upon setting of the parameters above, EM760 will convert the received address F00.09 of PLC write into F00.14 and the received address F00.10 of PLC write into F00.15, to realize normal modification ofacceleration/deceleration time. In case ofwrong setting for address mapping, not only the acceleration/deceleration time of EM760 can’t be modified, but also the function codes F00.09 and F00.10 of EM760 will be wrongly changed. b.
Sending inconsecutive addresses by one frame using address mapping The PLC needs to read the output frequency, output current, PID setting, and status of digital input terminal of EM760 inverter. Since all the four addresses are inconsecutive, the PLC will have to send 4 frames for reading. With address mapping, only one frame will be required to read the 4 pieces of data that are not consecutive. Just map the first 4 pieces of data ofF18.00: F18.00, F18.01, F18.02, and F18.03 to F18.00, F18.06, F18.16, and F18.22.
169 Source address 1 F00.09 (0009H/9D) Target address 1 F00.14 (000EH/14D) Acceleration time Source address 2 F00.10 (000AH/10D) Target address 2 F00.15 (000FH/15D) Deceleration time Source address 1 F18.00(1200H/4608D) Target address 1 F18.00 (1200H/4608D) Output frequency Source address 2 F18.01 (1201H/4609D) Target address 2 F18.06 (1206H/4614D) Output current Source address 3 F18.02 (1202H/4610D) Target address 3 F18.16 (1210H/4624D) PID setting Source address 4 F18.03 (1203H/4611D) Target address 4 F18.22 (1216H/4630D) Digital input terminal status