Example - PENN Controls - VFD68Bxx - VFD68Cxx - VFD68Dxx - Three‐Phase Motor Speed Controller - VFD68 Three‐Phase Variable Frequency Drive

VFD68 Variable Frequency Drives Technical Bulletin

Brand
PENN Controls
Product name
VFD68 Three‐Phase Variable Frequency Drive
Document type
Technical Bulletin
Part number
24-7664-3051
Document revision
C
Revision date
2019-08-09
Language
English

The following tables contain a query message directed to the VFD68 subordinate address 17 (H11). This message requests a read of register addresses (parameter values) 41004 (P.4) to 41006 (P.6). These tables also show the VFD68 subordinate response message containing the 2 byte Parameter Values P. 4, P. 5, and P. 6 (Table 1 and Table 2).

Table 1. Query Message
Subordinate Address Function Starting Address Number of Points CRC Check
H11 (8 bit) H03 (8 bit) H03 (8 bit) HEB (8 bit) H00 (8 bit) H03 (8 bit) H77 (8 bit) H2B (8 bit)
Table 2. Normal Response (Response Message)
Subordinate Address Function Byte Count Data CRC Check
H11(8 bit) H03

(8 bit)

H06

(8 bit)

H17

(8 bit)

H70

(8 bit)

H0B

(8 bit)

HB8

(8 bit)

H03

(8 bit)

HE8

(8 bit)

H2C

(8 bit)

HE6

(8 bit)

Register Starting Address: H03 HEB = 1003 decimal. A base number of 40001 decimal must be added to this Register Starting Address to achieve the Register number of: 41004 decimal for Parameter 4 (see Table 3).

Read value

Register 41004 (P.004); H1770 (60.00 Hz)

Register 41005 (P.005); H0BB8 (30.00 Hz)

Register 41006 (P.006); H03E8 (10.00 Hz)